Advanced Sensing and Human Activity Recognition in Early Intervention and Rehabilitation of Elderly People
Open accessAbstract
Ageing is associated with a decline in physical activity and a decrease in the ability to perform activities of daily living, affecting physical and mental health. Elderly people or patients could be supported by a human activity recognition (HAR) system that monitors their activity patterns and intervenes in case of change in behavior or a critical event has occurred. A HAR system could enable these people to have a more independent life. In our approach, we apply machine learning methods from the field of human activity recognition (HAR) to detect human activities. These algorithmic methods need a large database with structured datasets that contain human activities. Compared to existing data recording procedures for creating HAR datasets, we present a novel approach, since our target group comprises of elderly and diseased people, who do not possess the same physical condition as young and healthy persons. Since our targeted HAR system aims at supporting elderly and diseased people, we focus on daily activities, especially those to which clinical relevance in attributed, like hygiene activities, nutritional activities or lying positions. Therefore, we propose a methodology for capturing data with elderly and diseased people within a hospital under realistic conditions using wearable and ambient sensors. We describe how this approach is first tested with healthy people in a laboratory environment and then transferred to elderly people and patients in a hospital environment. We also describe the implementation of an activity recognition chain (ARC) that is commonly used to analyse human activity data by means of machine learning methods and aims to detect activity patterns. Finally, the results obtained so far are presented and discussed as well as remaining problems that should be addressed in future research.
AI snapshot
Written from the paper’s full text.
TL;DR
The paper presents a methodology for collecting wearable and ambient sensor data from elderly people and patients in a hospital to build a human activity recognition (HAR) dataset focused on clinically relevant daily activities, and describes an activity recognition chain (ARC) using a Random Forest classifier. Preliminary ARC results on the public Opportunity dataset outperform challenge baselines, but annotation and evaluation on the newly collected elderly/patient data remain in progress.
Key findings
- Data acquisition proceeded in two stages: first with 5 healthy participants aged 24–55, then with 15 participants consisting of 8 healthy elderly persons (5 men, 3 women; aged 67–86, mean 74.4 years, SD 6.5) and 7 neurological patients (5 men, 2 women; aged 30–84, mean 64.0 years, SD 17.5). In total, 56 ADL sessions and 37 ASI sessions were recorded, totaling 19:39:48 recording minutes.
- Clinically relevant activities were selected as activities of special interest: changing positions in bed, getting out of bed, using the toilet, drinking, and eating.
- The first ARC version, trained and tested on the public Opportunity dataset, achieved F-scores of 0.87 for locomotion and 0.90 for hand gestures, compared with challenge results such as 1-NN (0.84 locomotion, 0.87 hand gestures), 3-NN (0.85, 0.85), and CStar (0.63, 0.88).
- Among 8 healthy elderly participants, general technical affinity measured by the TA-EG questionnaire had a mean of 3.0 points (SD 0.6); enthusiasm for technology was the lowest dimension, while positive attitude towards technology showed the highest individual ratings.
Methods
- Two-stage data acquisition methodology: healthy participants were recorded in a laboratory test apartment at TUM and a hospital environment at SKBA; elderly people and patients were then recorded in a conventional patient room at SKBA. Sessions followed ADL and ASI activity protocols, with wearable sensors (9 activPAL monitors, 2 Myo armbands, 1 SmartCardia prototype) and ambient sensors (Tekscan BPMS, stationary and hand cameras).
- The ARC implementation includes sensor data acquisition, preprocessing, segmentation, feature extraction and selection, and classification; a Random Forest classifier was selected, and annotation used a hierarchical annotation vocabulary covering high-level, mid-level, low-level activities, modes of locomotion, and object interactions.
- Proof of concept was conducted on the publicly available Opportunity dataset; evaluation metrics included F-score and frame/event analysis. The newly collected HAR database was still being annotated.
Limitations
- Stated in the paper: the annotation process of the HAR database is currently in progress, so the database is not yet ready for model evaluation; specific medical aspects of the patients are not included; the SmartCardia wearable could not be used in the final trial due to a missing CE certificate; the activity protocol was kept flexible and fewer sessions were executed depending on patient condition.
- Stated in the paper: the preliminary ARC results are only from the Opportunity dataset, which was measured with healthy and young persons only; evaluation using data from elderly people and patients remains future work.
- Evident from the text: the target-group dataset is small (8 elderly persons and 7 neurological patients), and no classification performance on the newly collected elderly/patient data is reported.
Model-written summary. Check it against the paper before relying on it.
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Claims the paper makes
0 of 45 cited sources checked · 0 supported · 0 flagged
- Findingown data
Data from five healthy participants were collected in two different laboratory environments at TUM and SKBA.
“All in all, data from five different healthy participants were collected in two different laboratory environments at TUM and SKBA.”
Quote in the paperNot a substantial claim - Findingown data
No technical difficulties are to be expected in the hospital environment.
“The first stage of our data acquisition methodology showed that no technical difficulties are to be expected in the hospital environment.”
Quote in the paperNot a substantial claim - Findingown data
The 5XSST values for patients ranged from 15.9 to 31.5 s with a mean of 21.8 s (SD 7.0).
“The values ranged from 15.9 to 31.5 s with a mean of 21.8 s (SD 7.0).”
Quote in the paperNot a substantial claim - Findingown data
The hand grip force for healthy elderly people ranged from 16.6 to 35.7 kg with a mean of 26.0 kg (SD 6.8).
“The hand grip force ranged from 16.6 to 35.7 kg with a mean of 26.0 kg (SD 6.8).”
Quote in the paperNot a substantial claim - Findingown data
The 5XSST values for healthy elderly people ranged from 7.2 to 10.0 s with a mean of 8.6 s (SD 1.1).
“The values of the 5XSST were in the range from 7.2 to 10.0 s with a mean of 8.6 s (SD 1.1).”
Quote in the paperNot a substantial claim
- Findingown data
The MoCA results for healthy elderly people were between 24 and 27 points with a mean of 25.1 points (SD 1.0).
“The MoCA results were between 24 and 27 points with a mean of 25.1 points (SD 1.0).”
Quote in the paperNot a substantial claim - Findingnone given
Participants who were pain-free performed the ADL and ASI sessions as fast as the trial assistants who tested the approach in the laboratory environment.
“Participants who were pain-free performed the ADL and ASI sessions as fast as the trial assistants who tested the approach in the laboratory environment.”
Quote in the paperNot a substantial claim - Findingown data
The MoCA results for patients were between 21 and 28 points with a mean of 24.3 points (SD 2.4).
“The MoCA results were between 21 and 28 points with a mean of 24.3 points (SD 2.4).”
Quote in the paperNot a substantial claim - Findingown data
Patients with pain or patients who needed aid in mobility needed more time with the different tasks, especially standing up and going from bed to the bathroom, or back to the table.
“On the other hand, patients with pain (e.g.back pain) or patients who needed aid in mobility (e.g.rollators) needed more time with the different tasks, especially standing up and going from bed to the bathroom, or back to the table.”
Quote in the paperNot a substantial claim - Findingown data
Depending on physical condition, enormous differences were observed during data collection with elderly persons and patients.
“Depending on the physical condition, enormous differences were observed during the data collection with elderly persons and patients.”
Quote in the paperNot a substantial claim - Findingown data
Our first ARC version already outperforms other approaches in terms of recognizing locomotion and hand gestures.
“These results show that our first ARC version already outperforms other approaches in terms of recognizing locomotion and hand gestures.”
Quote in the paperSubstantial claim - Premisecitation
The HAR problem is not feasible to be solved deterministically because the number of combinations of sensor measurements and activities can be very large.
“The HAR problem is not feasible to be solved deterministically since the number of combinations of sensor measurements and activities can be very large (Lara and Labrador 2013).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Lara and Labrador 2013 source
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- Premisecitation
The Opportunity dataset was measured with healthy and young persons only.
“However, the Opportunity dataset was measured with healthy and young persons only.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Chavarriaga et al. 2013 source
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- Interpretationcitation
To prevent falls in patients who need support when getting up, it is necessary to detect the activity before the patient leaves the bed.
“To prevent falls in patients, who need support when getting up, it is necessary to detect the activity before the patient leaves the bed.This is an important part in a fall prevention program (Oliver et al. 2010).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Oliver et al. 2010 source
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- Premisecitation
Sufficient hydration is necessary to maintain intra- and extracellular volume homeostasis to avoid cognitive impairment, confusion, reduced concentration and irritability.
“A sufficient hydration is necessary to maintain intra-and extracellular volume homeostasis to avoid cognitive impairment, confusion, reduced concentration and irritability (Popkin et al. 2010).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Popkin et al. 2010 source
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- Premisecitation
Acceleration information is often the most promising input for human motion detection.
“Since acceleration information is often the most promising input for human motion detection (Roggen et al. 2010), we selected various devices that include accelerometer.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Roggen et al. 2010 source
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- Premisecitation
A Random Forest algorithm was selected as classifier for the ARC because Zhu et al. (2017) reported that the random forest classifier yielded the best results in a HAR problem with a high dimensional feature space.
“We have selected a Random Forest (RF) algorithm as classifier for our ARC since Zhu et al. (2017) used several classifiers in a HAR problem with a high dimensional feature space and reported that the random forest classifier yielded the best results.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Zhu et al. (2017) source
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- Study design and conductcitation
The first versions of the ARC were trained and tested using the publicly available Opportunity dataset.
“The first versions of the ARC were trained and tested using the publicly available Opportunity dataset (Chavarriaga et al. 2013).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Chavarriaga et al. 2013 source
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- Interpretationreasoning
The general acceptability of the system envisaged can be estimated to be high enough that elderly people are likely to use it.
“Hence, the general acceptability of the system envisaged can be estimated to be high enough that elderly people are likely to use it.”
Quote in the paperSubstantial claim
- Classified as probably not a substantial claim. 52
- May combine two claims. 33
- The quote only partly states this claim. 2
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Findingown dataIn the first stage, data from a total of five healthy persons were recorded: four in the laboratory environment and one in the hospital environment, with ages ranging from 24 to 55 years.
“In this first stage, data from a total of five healthy persons were recorded.There were recorded data of four persons in the laboratory environment and of one additional participant in the hospital environment.Their age was in the range of 24 to 55 years.”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim.
Findingnone givenThe data acquisition of several sessions one after the other is physically demanding.
“Although the recorded activities are part of daily life, the data acquisition of several sessions one after the other is physically demanding.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingown dataThe prototypic SmartCardia wearable could not be used due to a missing CE certificate.
“The only change of technical equipment concerned the prototypic SmartCardia wearable, which could not be used due to a missing CE certificate.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingnone givenThe most time-consuming task in data acquisition was storing the data.
“It also demonstrated that the most time-consuming task was storing the data.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataOverall, 15 participants were recruited: eight elderly persons and seven neurological patients.
“Overall, we recruited a group of 15 participants consisting of eight elderly persons and seven neurological patients.”
- Also stated in: § Results · plain
“During this trial, eight healthy elderly persons and seven neurological patients participated.”
Quote in the paperNot a substantial claim- Also stated in: § Results · plain
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Findingown dataThe 5XSST could be performed only by 4 patients as 3 patients were not able to stand up without an assistive device.
“The 5XSST could be performed only by 4 patients as 3 patients were not able to stand up without an assistive device.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingnone givenAll patients were in rehabilitation phase B.
“All patients were in rehabilitation phase B.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Findingown dataThe neurological patient group consisted of 5 men and 2 women aged 30 to 84 years with a mean age of 64.0 years (SD 17.5).
“The group consisted of 5 men and 2 woman aged 30 to 84 years with a mean age of 64.0 years (SD 17.5).”
Quote in the paperNot a substantial claimMay combine two claims.
Findingnone givenThe selected group of neurological patients represented different levels of motor and cognitive function: two patients after ischaemic stroke, two with Parkinson's Disease, one with Guillain-Barré-Syndrome, one with Alzheimer's Disease and one with Multiple Sclerosis.
“The selected group of neurological patients represented different levels of motor and cognitive function: two patients after ischaemic stroke, two with Parkinson's Disease, one with Guillain-Barré-Syndrome, one with Alzheimer's Disease and one with Multiple Sclerosis.”
Quote in the paperNot a substantial claimThe quote only partly states this claim.
Findingown dataThe hand grip force for patients ranged from 8.9 to 36.5 kg with a mean of 16.7 kg (SD 9.8).
“The hand grip force ranged from 8.9 to 36.5 kg with a mean of 16.7 kg (SD 9.8).”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Findingown dataThe group of healthy elderly people consisted of 5 men and 3 women aged 67 to 86 years with a mean age of 74.4 years (SD 6.5).
“The group of healthy elderly people consisted of 5 men and 3 women aged 67 to 86 years with a mean age of 74.4 years (SD 6.5).”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
FindingreasoningThe generation of labeled training data is a very time-consuming task.
“On the other hand, the generation of labeled training data also becomes a very time-consuming task.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingown dataSo far, a selection of mid-level activities has been annotated: washing hands, brushing teeth, toileting, pull up/down the pants, eating, drinking, pill taking and the corresponding hand gestures for the last two.
“So far we have annotated a selection of mid-level activities, which are washing hands, brushing teeth, toileting, pull up/down the pants, eating, drinking, pill taking and the corresponding hand gestures for the last two.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Findingnone givenThe annotation process of the HAR database is currently in progress.
“The annotation process of the HAR database is currently in progress.”
Quote in the paperNot a substantial claimMay combine two claims.
Findingown dataEnthusiasm for technology resulted to be the lowest dimension, but the participants' ratings showed the highest value in positive attitude towards technology for each individual.
“Enthusiasm for technology resulted to be the lowest dimension, but nevertheless the participants' ratings showed the highest value in positive attitude towards technology for each individual.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataAlthough all healthy elderly persons were highly interested and motivated in participating in a study aiming at a monitoring or intervention system, their overall general technical affinity was only moderate with a mean value of 3.0 points (SD 0.6).
“Although all healthy elderly persons were highly interested and motivated in participating in a study aiming at a monitoring or intervention system, their overall general technical affinity was only moderate with a mean value of 3.0 points (SD 0.6).”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationAgeing is associated with a decline in physical activity and a decrease in the ability to perform activities of daily living, affecting physical and mental health.
“This increase has proved to be a major challenge to the healthcare system, since ageing is associated with a decline in physical activity, affecting physical and mental health.Strategies are needed to enable older people to continue their daily living, prevent diseases or support in rehabilitation, which is costly to individuals and the healthcare system (WHO 2002).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites WHO 2002
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InterpretationreasoningA HAR system can support elderly or diseased people by detecting their activity patterns and intervening in case of changes in behaviour or a critical event.
“A HAR system based on an ARC can then be used to support elderly or diseased people by detecting their activity patterns and intervening in case of changes in behaviour or a critical event (e.g. by sending recommendations or information to the person affected).”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationPerfect segmentation of activities is difficult because humans perform activities in a fluent way and segmentation of time series into intervals representing single activities is not straightforward.
“While the HAR problem seeks to find a perfect segmentation of activities, this task is difficult to achieve since humans perform activities in a fluent way and the segmentation of time series into intervals that represent single activities is not straightforward (Bulling et al. 2014).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Bulling et al. 2014 source
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PremisecitationData collection for HAR is challenging and time-consuming and involves general challenges on data collection, synchronization and multi-modal sensor arrangements.
“The data collection for HAR is a challenging and time consuming task that involves general challenges on data collection, synchronization and multi-modal sensor arrangements (Calatroni et al. 2011).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Calatroni et al. 2011 source
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InterpretationreasoningA HAR system can enable elderly or diseased people to have a more independent life.
“A HAR system could enable these people to have a more independent life.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationMost research in HAR follows a specific sequence of processing principles called the activity recognition chain (ARC).
“Most research in the HAR context follows a specific sequence of processing principles to interpret human activities from sensor data, called activity recognition chain (ARC) (Roggen et al. 2010).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Roggen et al. 2010 source
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PremisereasoningMachine learning algorithms are widely used for the development of HAR systems to recognize patterns of human activity in sensor data.
“Therefore, machine learning algorithms are widely used for the development of HAR systems in order to recognize patterns of human activity in the sensor data.”
Quote in the paperNot a substantial claimMay combine two claims.
PremisecitationHuman activity is highly diverse and recognition of specific activities requires accurate selection of sensors and their placement.
“The second aspect that goes along with this is that human activity is highly diverse and the recognition of specific activities therefore requires an accurate selection of sensors and their placement (Bulling et al. 2014).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Bulling et al. 2014 source
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PremisereasoningMost work in HAR divides measurements into fixed intervals and recognizes the activity that took place within each interval, known as the relaxed HAR problem.
“Therefore, most of the work in HAR is dedicated to dividing the measurements into fixed intervals and to recognize the activity that took place within each interval.This is known as the relaxed HAR problem and an example is shown in Fig. 1 (Bulling et al. 2014).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Bulling et al. 2014 source
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PremisecitationDatasets for HAR are typically recorded in controlled environments, where persons wear body sensors and perform a series of scripted activities.
“Datasets for HAR are typically recorded in controlled environments, where persons wear body sensors and perform a series of scripted activities (Vargas Toro 2018).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Vargas Toro 2018
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PremisecitationThe Opportunity dataset was selected for a proof of concept because of the amount and location of wearable sensors, difference of types and complexity of target activities, relevance of target activities in a real life setting, and quantity of participants.
“This public dataset was chosen because of the amount and location of wearable sensors, difference of types and complexity of the target activities, relevance of the target activities in a real life setting, and quantity of participants in the data collection sessions (Vargas Toro 2018).”
Quote in the paperSubstantial claim0 of 2 sources checked- cites Chavarriaga et al. 2013 source
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- cites Vargas Toro 2018
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PremisereasoningTo cope with intraclass variability, data from several subjects needs to be collected so that the variability of single activities can be learned by the model.
“To cope with intraclass variability, data from several subjects needs to be collected, such that the variability of single activities can be learned by the model.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationCollecting large datasets including many samples from target activities copes with the NULL class problem and interclass similarity, and the increased learning stage allows discovery of more complex patterns that enable differentiation between similar classes and NULL class activities.
“The NULL class problem and the interclass similarity are coped by collecting large datasets including many samples from the target activities.Consequently, the learning stage of the models increases allowing to discover more complex patterns that effectively enables to differentiate between similar classes and NULL class activities (Vargas Toro 2018).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Vargas Toro 2018
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Premisenone givenGround truth labeling is highly time-consuming and is mostly done by first recording the data collection session on video and then labeling the performed activities based on these recordings.
“Moreover, the ground truth labeling (assigning a ground truth label to each time stamp of the data stream, which is also called annotation for short) is a highly timeconsuming task.It is mostly done by first recording the data collection session on video and then labeling the performed activities based on these recordings.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable).
InterpretationreasoningThe proposed approach will increase the chance to generate data for classifiers that are compatible for patient analysis in the future.
“This approach will therefore increase the chance to generate data for classifiers, which are compatible for patient analysis in the future.”
Quote in the paperNot a substantial claim- Rests on an assumption: Healthy people move much faster and safer than elderly or diseased people, and the type of disease also affects movements.
May combine two claims.
PremisecitationMeasurement of ADLs allows conclusions about physical and cognitive status, provides information about frailty, and allows predictions about risk of falling.
“The measurement of ADLs allows conclusions to be drawn about the physical and cognitive status, provides information about frailty, and allows predictions about the risk of falling ( (Nourhashemi et al. 2001), (Hellström et al. 2013), (Tinetti et al. 1994)).”
Quote in the paperSubstantial claim0 of 3 sources checked- cites Nourhashemi et al. 2001
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- cites Hellström et al. 2013 source
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- cites Tinetti et al. 1994
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PremisecitationADLs are typically the first activities that require outside support, with hygiene being an early-loss activity, toilet-use a mid-loss activity, and eating a late-loss activity.
“These activities are typically the first ones that require outside support and it has been found that there is a progressive functional loss on them, with hygiene being an early-loss activity (i.e., this is one of the first ADL where it is likely that a person needs help from others), toilet-use a mid-loss activity, and eating a late-loss activity (Morris et al. 2013).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Morris et al. 2013 source
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Interpretationnone givenMonitoring ADLs would allow estimation of independency in daily living of older adults and recommendation of activities that might improve a patient's health status.
“Monitoring ADLs would allow to estimate the independency in their daily living of older adults, as well as to recommend activities that might improve a patient's health status.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationHuman activities can be decomposed into four hierarchical levels: high-level activities, mid-level activities, low-level activities, and modes of locomotion.
“According to (Roggen et al. 2010), we have decomposed human activities into four hierarchical levels:”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Roggen et al. 2010 source
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PremisecitationModes of locomotion can be used as reference for physical activity level and are useful for detecting hazardous situations such as falling.
“Additionally, modes of locomotion like walking, sitting and lying can be used as reference for the physical activity level of an individual.Furthermore, they can be useful for detecting hazardous situations such as falling (Ni et al. 2015).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Ni et al. 2015
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PremisecitationMicro-mobility and nutrition status are important indicators to estimate the risk profile for decubitus, especially in elder patients, and the ability to change position in bed is essential to avoid it.
“Micro-mobility (movements in bed) and nutrition status are important indicators to estimate the risk profile for decubitus, especially in elder patients.These patients constitute the single largest group (more than 60%) among all patients with decubitus ulcers (Anders et al. 2010) and their ability to change the position in bed is essential to avoid it (Harris 1996).”
Quote in the paperSubstantial claim0 of 2 sources checkedMay combine two claims.
PremisecitationGetting out of the bed unsupervised may lead to falls, which are a major problem in hospitals and contribute to substantial healthcare burden.
“Getting out of the bed unsupervised may lead to falls being a major problem in hospitals and contribute to substantial healthcare burden, e. g., a significant injury or an increased length of stay (( Oliver et al. 2004), (Oliver et al. 2010)).”
Quote in the paperSubstantial claim0 of 2 sources checkedClassified as probably not a substantial claim.
InterpretationreasoningFor timely prevention of decubitus, it is necessary to monitor mobility and nutrition intake and detect any change indicating a risk increase.
“For timely prevention it is necessary to monitor mobility and nutrition intake and detect any change indicating a risk increase for decubitus.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationUsing the toilet is clinically important because incontinence is one of the most common symptoms in neurological rehabilitation and has considerable physical, psychological and social consequences that can significantly impair quality of life.
“The activity “Using the toilet” is clinically important, because incontinence is one of the most common symptoms in neurological rehabilitation and has considerable physical, psychological and social consequences, which can significantly impair the quality of life of affected patients (Irwin et al. 2006).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Irwin et al. 2006 source
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InterpretationcitationIt is important to monitor the drinking habits of persons with enhanced risk of dehydration.
“Therefore, it is important to monitor the drinking habits of persons with enhanced risk of dehydration (Shells and Morrell-Scott 2018).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Shells and Morrell-Scott 2018 source
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PremisecitationMalnutrition in elderly patients undergoing rehabilitation is a prevalent and often neglected problem associated with lower rehabilitation effect and lower physical function.
“Malnutrition in elderly patients undergoing rehabilitation is a prevalent and often neglected problem associated with lower rehabilitation effect and lower physical function (Pirlich et al. 2006).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Pirlich et al. 2006 source
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PremisecitationElder neurological patients often show decreased thirst, which leads to dehydration and exsiccosis.
“Especially elder neurological patients often show decreased thirst, which leads to dehydration and exsiccosis (Lauster and Mertl-Rötzer 2014).”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Lauster and Mertl-Rötzer 2014
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PremisecitationThe activPAL micro is used quite often in clinical, older aged residents and hospital trials.
“It is used quite often in clinical, older aged residents and hospital trials (Chan et al. 2017).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Chan et al. 2017
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Study design and conductreasoningThe synchronization gesture generated clearly visible impacts on the data records of all sensors, enabling synchronization of the time axes of sensor records with camera records.
“This gestures generated clearly visible impacts on the data records of all sensors, and thus enabled to syncronise later the time axes of the sensor records with the camera records.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationReducing the sampling frequency of SmartCardia and Myo armbands to 20 Hz is not problematic because a study found no significant gain in accuracy when using accelerometer sampling frequencies above 20 Hz.
“The reduction of the sampling frequency (and hence of the available data) for these sensors is not problematic, as Maurer et al. (2006) studied the behavior of the accuracy of models (based on accelerometer sensor data) as a function of the accelerometer sampling rate.In this study, the sampling rate was varied from 1 to 30 Hz and no significant gain in accuracy was found when using sampling frequ”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Maurer et al. (2006)
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InterpretationreasoningIt is important to recognize changes in dietary habits for timely intervention, i.e. before weight and muscle loss occur.
“In addition to monitoring the patient's weight, it is important to recognize changes in dietary habits for timely intervention, i.e. before weight and muscle loss occur.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisereasoningOnly one Bluetooth connection can be established on a device, so two computers are necessary for capturing the data of two Myo armbands.
“Since only one Bluetooth connection can be established on a device, two computers are necessary for capturing the data of two Myo armbands.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductnone givenAll assistants needed for the data acquisition signed a data privacy statement.
“All assistants needed for the data acquisition also signed a data privacy statement.”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim.
Study design and conductnone givenThe activity protocol and other study-related documents were reviewed by the Ethics Committee of the Bavarian State Medical Association, Munich.
“The activity protocol and other study related documents were reviewed by the Ethics Committee of the Bavarian State Medical Association, Munich.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Study design and conductreasoningAll legal requirements have been fulfilled, including insurance, qualification of study personnel, certification of sensor equipment, data protection, and a positive risk-benefit profile.
“All legal requirements have been fulfilled, i.e. the insurance, qualification of study personnel, certification of sensor equipment, data protection and a positive risk-benefit profile.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductnone givenAt no time will there be diagnostic or medical statements or therapy adaptations based on the data acquisition trials or data analysis.
“It was also stated that at no time will there be diagnostic or medical statements or therapy adaptations based on the data acquisition trials or data analysis.”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim.
Study design and conductcitationThe physical and cognitive status of each participant was tested using the 5x sit-to-stand-test (5XSST), grip force test, and Montreal Cognitive Assessment (MoCA).
“In addition, the physical and cognitive status of each participant was tested.A functional test for the general fitness and frailty (5x sit-to-stand-test (5XSST), (Treacy and Hassett 2018)), the grip force test (Allen and Barnett 2011) and a test to measure the cognitive status of the participants (Montreal Cognitive Assessment (MoCA), (Nasreddine et al. 2005)) were examined.”
Quote in the paperSubstantial claim0 of 3 sources checkedProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductnone givenParticipants were explicitly informed about their rights according to the General Data Protection Regulation (GDPR).
“The participants where explicitly informed about their rights according to the General Data Protection Regulation (GDPR).”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
InterpretationreasoningTwo technical assistants and two (medical) assistants are needed to manage the equipment and guide participants through the session according to the activity protocol.
“To optimize these procedures, two technical assistants are needed to manage the equipment as well as two (medical) assistants to prepare the participants and to guide them through the session according to the activity protocol.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Study design and conductnone givenAll participants signed a written consent and a data protection form, proved by the local ethical commission in accordance with the Declaration of Helsinki, and gave permission to use their video material for data annotation.
“Before participating in the study, all participants signed a written consent and a data protection form, proved by the local ethical commission in accordance with the Declaration of Helsinki and gave permission to the use of their video material for data annotation.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationElderly persons are considered vulnerable, so conceptual adjustments were made to address aspects of vulnerability.
“In general, elderly persons are considered as vulnerable and therefore conceptual adjustments had to be made to address the different aspects of vulnerability (Schroder-Butterfill and Marianti 2006).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Schroder-Butterfill and Marianti 2006 source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductreasoningThe activity protocol was held flexible to allow adaptation of procedures to the abilities of the participants.
“Thus, the activity protocol was held flexible to allow the adaptation of procedures to the abilities of the participants (respecting cognitive, mental, and physical limitations).”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductreasoningThe medical assistants were actively attentive in order to adapt the activities, interrupt or terminate the participation.
“The medical assistants were actively attentive in order to adapt the activities, interrupt or terminate the participation.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductnone givenIf necessary, participants were supported by a physical therapist throughout the entire session for safety.
“If necessary, the participants were supported by a physical therapist throughout the entire session for safety.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationWard et al. (2011) developed specialized metrics to measure the performance of a HAR classifier, defined as frame analysis and event analysis.
“Ward et al. (2011) developed specialized metrics to measure the performance of a HAR classifier, defined as frame analysis and event analysis.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Ward et al. (2011) source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationStatistical features (e.g., mean, variance, kurtosis and interquartile range) are popular for HAR problems due to their simplicity as well as their performance.
“A set of features is then calculated for each window: statistical features, e.g., mean, variance, kurtosis and interquartile range, are popular for HAR problems due to their simplicity as well as their performance (Bulling et al. 2014).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Bulling et al. 2014 source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThese analyses extend the traditional classification errors (false positives and false negatives) onto more descriptive categories: deletion, insertion, merge, and fragmentation.
“These analyses extend the traditional classification errors (false positives and false negatives) onto more descriptive categories: deletion, insertion, merge, and fragmentation.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Ward et al. (2011) source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationFrame analysis corresponds to error categories calculated with regard to the single frames (time windows) of the classifier.
“Frame analysis corresponds to error categories that can be calculated with regard to the single frames (time windows) of the classifier.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Ward et al. (2011) source
Not checked in the free run.
Classified as probably not a substantial claim.
PremisecitationAn event is equivalent to a sequence of windows that represent the same activity.
“In contrast, an event is equivalent to a sequence of windows that represent the same activity.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites Ward et al. (2011) source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe authors of the Opportunity dataset released a public challenge to recognize hand gestures and locomotion activities.
“The authors of the dataset released a public challenge to recognize hand gestures and locomotion activities.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Chavarriaga et al. 2013 source
Not checked in the free run.
Probably not a substantial claim: may not pass S4 (based).
InterpretationreasoningCritical situations (e.g., fall, immobility or dehydration) could then be recognised both for patients in the hospital and for elderly people at home, such that care staff could intervene earlier.
“Critical situations (e.g., fall, immobility or dehydration) could then be recognised both for patients in the hospital and for elderly people at home, such that care staff could intervene earlier.”
Quote in the paperNot a substantial claim- Rests on an assumption: The HAR system can reliably recognize critical situations such as falls, immobility, or dehydration.
Classified as probably not a substantial claim.
InterpretationreasoningThe analysis of activity pattern and possible pattern deviations allows risk assessments without the affected person being permanently observed and without intrusion into the persons' privacy.
“The analysis of activity pattern and possible pattern deviations allows therefore risk assessments without the affected person being permanently observed and without intrusion into the persons' privacy.”
Quote in the paperSubstantial claim- Rests on an assumption: Using unobtrusive sensor-systems does not intrude into the persons' privacy.
Classified as probably not a substantial claim. May combine two claims.
Premisenone givenThe TA-EG is a 19-item questionnaire consisting of four dimensions: enthusiasm for technology, competence in dealing with technology, positive and negative attitudes towards technology.
“The TA-EG is a 19-item questionnaire consisting of four dimensions, i.e., enthusiasm for technology, competence in dealing with technology, positive and negative attitudes towards technology.”
Quote in the paperSubstantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe TA-EG is one of a few scales that is not restricted to computer use.
“Therefore, the Affinity for Technology questionnaire (TA-EG) of electrical devices was used, which is one of a few scales that is not restricted to computer use ( (Karrer et al. 2009), (Attig et al. 2017)).”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites Karrer et al. 2009
Not checked in the free run.
- cites Attig et al. 2017
Not checked in the free run.
Probably not a substantial claim: may not pass S4 (based). May combine two claims.
InterpretationreasoningBy using unobtrusive sensor-systems in the respective room, the assistance of professional caregivers could be reduced and therefore lead to a more private environment.
“By using unobtrusive sensor-systems in the respective room, the assistance of professional caregivers could be reduced and therefore lead to a more private environment.”
Quote in the paperNot a substantial claim- Rests on an assumption: The proposed HAR system can enhance quality of life, privacy, and autonomy and reduce carer effort.
Probably not a substantial claim: may not pass S3 (load-bearing). The quote only partly states this claim.
Premiseown dataThe responses to all TA-EG items are categorized on a 5-point Likert scale, ranging from 'fully agree' to 'fully disagree'.
“The responses to all items are categorized on a 5-point Likert scale, ranging from”
Quote in the paperNot a substantial claim
The paper relies on this without support.
Healthy people move much faster and safer than elderly or diseased people, and the type of disease also affects movements.
“This approach is challenging, since healthy people move much faster and safer compared to elderly or diseased people.Furthermore, the type of disease also affects the movements.”
The paper relies on this without support.
The endurance of participants is not as high as it is with healthy persons.
“Another challenging aspect during data recording is that the endurance of the participants is not as high as it is with healthy persons.”
The paper relies on this without support.
There is no common definition or description of human activities that explains how a specific activity is characterized.
“First of all, there is no common definition or description of human activities that explains how a specific activity is characterized.”
The paper relies on this without support.
Sensor position has a significant effect on the signal quality for distinct types of movement.
“We used nine identical activPAL monitors, two Myo armbands and one SmartCardia wearable to record motion information in separate body partitions since the sensor position has a significant effect on the signal quality for distinct types of movement (e.g.walking or drinking).”
The paper relies on this without support.
In hospitals, a vast amount of caregiver time is used to support the patient to use the toilet.
“Moreover, in the hospitals a vast amount of caregiver time is used to support the patient to use the toilet.”
The paper relies on this without support.
The activities retained in the activity protocol are clinically relevant for elderly people and patients.
“In order to adapt the protocol to the lower resilience of elderly people and patients, we removed the leisure activities (smartphone interaction and writing) from the activity protocol because they have no clinical relevance either.”
The paper relies on this without support.
The proposed HAR system can enhance quality of life, privacy, and autonomy and reduce carer effort.
“The data acquisition and the proposed HAR system aim to enhance the quality of life, privacy, and autonomy of elderly people as well as patients in addition with a reduction of carer effort.”
The paper relies on this without support.
The HAR system can reliably recognize critical situations such as falls, immobility, or dehydration.
“Critical situations (e.g., fall, immobility or dehydration) could then be recognised both for patients in the hospital and for elderly people at home, such that care staff could intervene earlier.”
The paper relies on this without support.
Using unobtrusive sensor-systems does not intrude into the persons' privacy.
“without intrusion into the persons' privacy.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Automatic human activity recognition is an essential element in developing human-interaction applications in personal fitness and healthcare.
“Automatic human activity recognition is an essential element in developing human-interaction applications in personal fitness and healthcare [14].”
From Review of Wearable Devices and Data Collection Considerations for Connected Health (2021) · cites this paper as [14]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Canon camera classified as wearable despite cameras being ambient sensors
MinorThe text classifies cameras as ambient sensors, but Table 1 classifies the Canon G11 camera as a wearable device.
“Additionally, two types of ambient sensors were selected, which are a Body Pressure Measurement System (BPMS) and cameras (only necessary for subsequent data annotation).”
“1 × Canon G11 3648 × 2736 resoluƟon.SDHC Card for data storage.Micro USB interface.5x opƟcal zoom.4x digital zoom.wearable”
Pressure-mat dimensions use conflicting units
MinorThe BPMS sensor layer is described as 940 × 640 mm2 in the text, but Table 1 gives 940 × 640 cm2. Those units describe areas differing by a factor of 100.
“which has a dimension of 940 × 640 mm 2 .”
“940 × 640 cm² (three Ɵmes).”
Cites
The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment
Nasreddine, Z. S., Phillips, N. A., Bédirian, V., Charbonneau, S., Whitehead, V., Collin, I., Cummings, J. L., & Chertkow, H. (2005) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2005.53221.x · Cited by 25,553 · see citing works
An Introduction to Statistical Learning
James, G., Witten, D., Hastie, T., & Tibshirani, R. (2013) · Springer Texts in Statistics · doi:10.1007/978-1-4614-7138-7 · Cited by 12,106 · see citing works
Clegg, A., Young, J., Iliffe, S., Rikkert, M. O., & Rockwood, K. (2013) · The Lancet · doi:10.1016/s0140-6736(12)62167-9 · Cited by 9,503 · see citing works
Kuhn, M., & Johnson, K. (2013) · doi:10.1007/978-1-4614-6849-3 · Cited by 6,788 · cited 1× · see citing works
“The performance of a model on a test dataset is an indicator of how well a model might perform in the future on previously not seen data (Kuhn and Johnson 2013).”
BackgroundA Survey on Human Activity Recognition using Wearable Sensors
Lara, O. D., & Labrador, M. A. (2013) · IEEE Communications Surveys & Tutorials · doi:10.1109/surv.2012.110112.00192 · Cited by 2,662 · see citing works
Tinetti, M. E., Baker, D. I., McAvay, G., Claus, E. B., Garrett, P., Gottschalk, M., Koch, M. L., Trainor, K. M., & Horwitz, R. I. (1994) · New England Journal of Medicine · doi:10.1056/nejm199409293311301 · Cited by 2,135 · see citing works
(2013) · RECERCAT (Consorci de Serveis Universitaris de Catalunya) · Cited by 1,959 · see citing works
A tutorial on human activity recognition using body-worn inertial sensors
Bulling, A., Blanke, U., & Schiele, B. (2014) · ACM Computing Surveys · doi:10.1145/2499621 · Cited by 1,668 · see citing works
Introducing a New Benchmarked Dataset for Activity Monitoring
Reiss, A., & Stricker, D. (2012) · 2012 16th International Symposium on Wearable Computers · doi:10.1109/iswc.2012.13 · Cited by 1,456 · cited 1× · see citing works
“& The PAMAP dataset focuses on locomotion activities using body-worn sensors and includes a heart rate monitor in the measurements to address the physical intensity of an activity (Reiss and Stricker 2012).”
BackgroundWater, hydration, and health: Nutrition Reviews©, Vol. 68, No. 8
Popkin, B. M., D'Anci, K. E., & Rosenberg, I. H. (2010) · Nutrition Reviews · doi:10.1111/j.1753-4887.2010.00304.x · Cited by 1,175 · see citing works
A Survey of Wearable Devices and Challenges
Seneviratne, S., Hu, Y., Nguyen, T., Lan, G., Khalifa, S., Thilakarathna, K., Hassan, M., & Seneviratne, A. P. (2017) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2017.2731979 · Cited by 844 · see citing works
Collecting complex activity datasets in highly rich networked sensor environments
Roggen, D., Calatroni, A., Rossi, M., Holleczek, T., Forster, K., Troster, G., Lukowicz, P., Bannach, D., Pirkl, G., Ferscha, A., et al. (2010) · 2010 Seventh International Conference on Networked Sensing Systems (INSS) · doi:10.1109/inss.2010.5573462 · Cited by 788 · see citing works
The Opportunity challenge: A benchmark database for on-body sensor-based activity recognition
Chavarriaga, R., Sagha, H., Calatroni, A., Digumarti, S. T., Tröster, G., Millán, J. D. R., & Roggen, D. (2013) · Pattern Recognition Letters · doi:10.1016/j.patrec.2012.12.014 · Cited by 742 · cited 5× · see citing works
“The first versions of the ARC were trained and tested using the publicly available Opportunity dataset (Chavarriaga et al. 2013).”
BackgroundMethodInfluentialThe German hospital malnutrition study
Pirlich, M., Schütz, T., Norman, K., Gastell, S., Lübke, H. J., Bischoff, S. C., Bolder, U., Frieling, T., Güldenzoph, H., Hahn, K., et al. (2006) · Clinical Nutrition · doi:10.1016/j.clnu.2006.03.005 · Cited by 720 · see citing works
Stisen, A., Blunck, H., Bhattacharya, S., Prentow, T. S., Kjærgaard, M. B., Dey, A., Sonne, T., & Jensen, M. M. (2015) · Proceedings of the 13th ACM Conference on Embedded Networked Sensor Systems · doi:10.1145/2809695.2809718 · Cited by 714 · see citing works
Risk factors and risk assessment tools for falls in hospital in-patients: a systematic review
Oliver, D. (2004) · Age and Ageing · doi:10.1093/ageing/afh017 · Cited by 714 · see citing works
Activity Recognition and Monitoring Using Multiple Sensors on Different Body Positions
Maurer, U., Smailagic, A., Siewiorek, D. P., & Deisher, M. E. (2006) · Wearable and Implantable Body Sensor Networks · doi:10.1109/bsn.2006.6 · Cited by 606 · see citing works
Preventing Falls and Fall-Related Injuries in Hospitals
Oliver, D., Healey, F., & Haines, T. P. (2010) · Clinics in Geriatric Medicine · doi:10.1016/j.cger.2010.06.005 · Cited by 480 · see citing works
A framework for understanding old-age vulnerabilities
SCHRÖDER-BUTTERFILL, E., & MARIANTI, R. (2006) · Ageing and Society · doi:10.1017/s0144686x05004423 · Cited by 324 · see citing works
IRWIN, D. E., MILSOM, I., KOPP, Z., ABRAMS, P., & CARDOZO, L. (2006) · BJU International · doi:10.1111/j.1464-410x.2005.05889.x · Cited by 319 · see citing works
A comprehensive survey of wearable and wireless ECG monitoring systems for older adults
Baig, M. M., Gholamhosseini, H., & Connolly, M. J. (2013) · Medical & Biological Engineering & Computing · doi:10.1007/s11517-012-1021-6 · Cited by 284 · see citing works
Ni, Q., García, A. B., & Pau, I. (2015) · Sensors · doi:10.3390/s150511312 · Cited by 264 · see citing works
Nourhashémi, F., Andrieu, S., Guyonnet, S., Vellas, B. J., Albarède, J. L., & Grandjean, H. (2001) · The Journals of Gerontology Series A · doi:10.1093/gerona/56.7.m448 · Cited by 240 · see citing works
The Short Physical Performance Battery
Treacy, D., & Hassett, L. (2018) · Journal of Physiotherapy · doi:10.1016/j.jphys.2017.04.002 · Cited by 237 · see citing works
Leutheuser, H., Schuldhaus, D., & Eskofier, B. M. (2013) · PLoS ONE · doi:10.1371/journal.pone.0075196 · Cited by 189 · see citing works
Performance metrics for activity recognition
Ward, J. A., Lukowicz, P., & Gellersen, H. W. (2011) · ACM Transactions on Intelligent Systems and Technology · doi:10.1145/1889681.1889687 · Cited by 182 · see citing works
スマート・データプライニングの概観:過去のプロポーザル,現在のプラン,今後の傾向
Soumya, S., Carlee, J.-W., Ha, S., & Chiang, M. (2013) · ACM Computing Surveys · Cited by 179 · see citing works
A benchmark dataset to evaluate sensor displacement in activity recognition
Baños, O., Damas, M., Pomares, H., Rojas, I., Tóth, M. A., & Amft, O. (2012) · Proceedings of the 2012 ACM Conference on Ubiquitous Computing · doi:10.1145/2370216.2370437 · Cited by 163 · see citing works
Human activity recognition using multisensor data fusion based on Reservoir Computing
Palumbo, F., Gallicchio, C., Pucci, R., & Micheli, A. (2016) · Journal of Ambient Intelligence and Smart Environments · doi:10.3233/ais-160372 · Cited by 157 · see citing works
Scaling functional status within the interRAI suite of assessment instruments
Morris, J. N., Berg, K., Fries, B. E., Steel, K., & Howard, E. P. (2013) · BMC Geriatrics · doi:10.1186/1471-2318-13-128 · Cited by 118 · see citing works
Anders, J., Heinemann, A., Leffmann, C., Leutenegger, M., Pröfener, F., & Renteln-Kruse, W. V. (2010) · Deutsches Ärzteblatt international · doi:10.3238/arztebl.2010.0371 · Cited by 106 · see citing works
Feature extraction for robust physical activity recognition
Zhu, J., San-Segundo, R., & Pardo, J. M. (2017) · Human-centric Computing and Information Sciences · doi:10.1186/s13673-017-0097-2 · Cited by 68 · see citing works
Reliability and validity of an electronic dynamometer for measuring grip strength
Allen, D., & Barnett, F. (2011) · International Journal of Therapy and Rehabilitation · doi:10.12968/ijtr.2011.18.5.258 · Cited by 50 · see citing works
Attig, C., Wessel, D., & Franke, T. (2017) · Interacción · doi:10.1007/978-3-319-58750-9_3 · Cited by 45 · see citing works
Improving healthcare value through clinical community and supply chain collaboration
Ishii, L. E., Demski, R. J., Lee, K. H. K., Mustafa, Z., Frank, S. J., Wolisnky, J. P., Cohen, D. B., Khanna, J. A., Ammerman, J. M., Khanuja, H. S., et al. (2016) · Healthcare · doi:10.1016/j.hjdsi.2016.03.003 · Cited by 34 · see citing works
Measuring Activity Performance of Older Adults Using the activPAL: A Rapid Review
Chan, C., Slaughter, S. E., Jones, C. A., Ickert, C., & Wagg, A. (2017) · Healthcare · doi:10.3390/healthcare5040094 · Cited by 23 · see citing works
Hellström, K., Sandström, M., Heideken Wågert, P., Sandborgh, M., Söderlund, A., Thors Adolfsson, E., & Johansson, A.-C. (2013) · Physical & Occupational Therapy In Geriatrics · doi:10.3109/02703181.2013.792912 · Cited by 17 · see citing works
Collection and curation of a large reference dataset for activity recognition
Calatroni, A., Roggen, D., & Troster, G. (2011) · 2011 IEEE International Conference on Systems, Man, and Cybernetics · doi:10.1109/icsmc.2011.6083638 · Cited by 13 · see citing works
Prevention of dehydration in hospital patients
Shells, R., & Morrell-Scott, N. (2018) · British Journal of Nursing · doi:10.12968/bjon.2018.27.10.565 · Cited by 13 · see citing works
Harris, M. D. (1996) · Home Healthcare Nurse: The Journal for the Home Care and Hospice Professional · doi:10.1097/00004045-199605000-00003 · Cited by 1 · see citing works
Flagged first, then by citations
Research works printed but not linked: 2
- Vargas Toro, A. (2018). Recognition of multi-level human activities by implementing an "activity recognition chain" in a benchmark dataset. Bachelor Thesis: Fraunhofer IAIS, Universidad EAFIT https://github.com/Fustincho/bachelor-thesis.
- Yang, A. Y., Kuryloski, P. & Bajcsy, R. (2009). WARD : A wearable action recognition database. CHI Conference on Human Factors in Computing Systems.
Cited by
Sorted by citations
Review of Wearable Devices and Data Collection Considerations for Connected Health
Vijayan, V., Connolly, J. P., Condell, J., McKelvey, N., & Gardiner, P. (2021) · Sensors · doi:10.3390/s21165589 · Cited by 435 · see citing works
Islam, M. M., Nooruddin, S., Karray, F., & Muhammad, G. (2022) · Computers in Biology and Medicine · doi:10.1016/j.compbiomed.2022.106060 · Cited by 229 · see citing works
GRU-INC: An inception-attention based approach using GRU for human activity recognition
Mim, T. R., Amatullah, M., Afreen, S., Yousuf, M., Uddin, S., Alyami, S. A., Hasan, K. F., & Moni, M. A. (2022) · Expert Systems with Applications · doi:10.1016/j.eswa.2022.119419 · Cited by 182 · see citing works
Khalid, N., Gochoo, M., Jalal, A., & Kim, K. (2021) · Sustainability · doi:10.3390/su13020970 · Cited by 106 · see citing works
Smartwatch-based Human Activity Recognition Using Hybrid LSTM Network
Mekruksavanich, S., & Jitpattanakul, A. (2020) · 2020 IEEE SENSORS · doi:10.1109/sensors47125.2020.9278630 · Cited by 109 · see citing works
AI-Enabled Wearable Medical Internet of Things in Healthcare System: A Survey
Subhan, F., Mirza, A., Su’ud, M. B. M., Alam, M. M., Nisar, S., Habib, U., & Iqbal, M. Z. (2023) · Applied Sciences · doi:10.3390/app13031394 · Cited by 117 · see citing works
Sardari, S., Sharifzadeh, S., Daneshkhah, A., Nakisa, B., Loke, S. W., Palade, V., & Duncan, M. J. (2023) · Computers in Biology and Medicine · doi:10.1016/j.compbiomed.2023.106835 · Cited by 97 · see citing works
A survey on unsupervised learning for wearable sensor-based activity recognition
Ige, A. O., & Noor, M. H. M. (2022) · Applied Soft Computing · doi:10.1016/j.asoc.2022.109363 · Cited by 88 · see citing works
A review of vision-based indoor HAR: state-of-the-art, challenges, and future prospects
Bhola, G., & Vishwakarma, D. K. (2023) · Multimedia Tools and Applications · doi:10.1007/s11042-023-15443-5 · Cited by 78 · see citing works
Rani, G. J., Hashmi, M. F., & Gupta, A. D. (2023) · IEEE Access · doi:10.1109/access.2023.3316509 · Cited by 64 · see citing works
Phukan, N., Mohine, S., Mondal, A., Manikandan, M. S., & Pachori, R. B. (2022) · IEEE Sensors Journal · doi:10.1109/jsen.2022.3206916 · Cited by 63 · see citing works
Patient activity recognition using radar sensors and machine learning
Bhavanasi, G., Werthen‐Brabants, L., Dhaene, T., & Couckuyt, I. (2022) · Neural Computing and Applications · doi:10.1007/s00521-022-07229-x · Cited by 53 · see citing works
Remote Health Monitoring Systems for Elderly People: A Survey
Ahmed, S., Irfan, S., Kiran, N., Masood, N., Anjum, N., & Ramzan, N. (2023) · Sensors · doi:10.3390/s23167095 · Cited by 52 · see citing works
An optimized deep learning model for human activity recognition using inertial measurement units
Challa, S. K., Kumar, A. A., Semwal, V. B., & Dua, N. (2023) · Expert Systems · doi:10.1111/exsy.13457 · Cited by 44 · see citing works
Assessing Impact of Sensors and Feature Selection in Smart-Insole-Based Human Activity Recognition
D’Arco, L., Wang, H., & Zheng, H. (2022) · Methods and Protocols · doi:10.3390/mps5030045 · Cited by 32 · see citing works
Shah, S. H. H., Karlsen, A., Solberg, M., & Hameed, I. A. (2023) · Expert Systems with Applications · doi:10.1016/j.eswa.2023.122482 · Cited by 31 · see citing works
Kamal, S., Alhasson, H. F., Alnusayri, M., Alatiyyah, M., Aljuaid, H., Jalal, A., & Liu, H. (2025) · Italian National Conference on Sensors · doi:10.3390/s25010200 · Cited by 30 · see citing works
Ankalaki, S., & Thippeswamy, M. N. (2023) · Multimedia Tools and Applications · doi:10.1007/s11042-023-15766-3 · Cited by 27 · see citing works
Taghanaki, S. R., Rainbow, M., & Etemad, A. (2022) · IEEE Transactions on Human-Machine Systems · doi:10.1109/thms.2023.3303438 · Cited by 21 · see citing works
Human Activity Recognition based on smart home environment and their applications, challenges
Kalimuthu, S., Perumal, T., Yaakob, R., Marlisah, E., & Babangida, L. (2021) · International Conference on Advance Computing and Innovative Technologies in Engineering (ICACITE) · doi:10.1109/icacite51222.2021.9404753 · Cited by 22 · see citing works
Real-Time Multimodal Cognitive Assistant for Emergency Medical Services
Weerasinghe, K., Janapati, S., Ge, X., Kim, S., Iyer, S., Stankovic, J. A., & Alemzadeh, H. (2024) · IEEE/ACM International Conference on Internet-of-Things Design and Implementation (IoTDI) · doi:10.1109/iotdi61053.2024.00012 · Cited by 26 · see citing works
Resource-Efficient Continual Learning for Sensor-Based Human Activity Recognition
Leite, C. F. S., & Xiao, Y. (2022) · ACM Transactions on Embedded Computing Systems · doi:10.1145/3530910 · Cited by 21 · see citing works
A TinyML Approach to Human Activity Recognition
Gupta, S., Jain, S., Roy, B., & Deb, A. (2022) · Journal of Physics Conference Series · doi:10.1088/1742-6596/2273/1/012025 · Cited by 21 · see citing works
Ethics Principles for Artificial Intelligence–Based Telemedicine for Public Health
Tiribelli, S., Monnot, A., Shah, S. F. H., Arora, A., Toong, P. J., & Kong, S. (2023) · American Journal of Public Health · doi:10.2105/ajph.2023.307225 · Cited by 19 · see citing works
Guevara, L., Hanheide, M., & Parsons, S. (2023) · Journal of Field Robotics · doi:10.1002/rob.22227 · Cited by 19 · see citing works
Human Activity Recognition and Prediction: Overview and Research Gaps
Nagpal, D., & Gupta, S. (2023) · IEEE International Conference for Convergence in Technology (I2CT) · doi:10.1109/i2ct57861.2023.10126458 · Cited by 16 · see citing works
Recurrent Network Solutions for Human Posture Recognition Based on Kinect Skeletal Data
Guerra, B. M. V., Ramat, S., Beltrami, G., & Schmid, M. (2023) · Sensors · doi:10.3390/s23115260 · Cited by 15 · see citing works
An Information Gain-Based Model and an Attention-Based RNN for Wearable Human Activity Recognition
Liu, L., He, J., Ren, K., Lungu, J., Hou, Y., & Dong, R. (2021) · Entropy · doi:10.3390/e23121635 · Cited by 15 · see citing works
Context-Aware Complex Human Activity Recognition Using Hybrid Deep Learning Models
Omolaja, A., Otebolaku, A., & Alfoudi, A. S. D. (2022) · Applied Sciences · doi:10.3390/app12189305 · Cited by 17 · see citing works
Spatio-Temporal Convolutional Networks and N-Ary Ontologies for Human Activity-Aware Robotic System
Abdelkawy, H., Ayari, N., Chibani, A., Amirat, Y., & Attal, F. (2020) · IEEE Robotics and Automation Letters · doi:10.1109/lra.2020.3047780 · Cited by 14 · see citing works
Smart Suspenders With Sensors and Machine Learning for Human Activity Monitoring
Mani, N., Haridoss, P., & George, B. (2023) · IEEE Sensors Journal · doi:10.1109/jsen.2023.3263231 · Cited by 13 · see citing works
Biosensor-Based Multimodal Deep Human Locomotion Decoding via Internet of Healthcare Things
Javeed, M., Abdelhaq, M., Algarni, A. M., & Jalal, A. (2023) · Micromachines · doi:10.3390/mi14122204 · Cited by 15 · see citing works
Otebolaku, A., Enamamu, T., Alfoudi, A. S. D., Ikpehai, A., Marchang, J., & Lee, G. M. (2020) · Sensors · doi:10.3390/s20133803 · Cited by 9 · see citing works
A Review of Wearable Sensor-based Human Activity Recognition using Deep Learning
Zhu, Y., & Mo, L. (2022) · International Conference on Sensing, Measurement & Data Analytics in the era of Artificial Intelligence (ICSMD) · doi:10.1109/icsmd57530.2022.10058422 · Cited by 10 · see citing works
A Systematic Literature Review on Human Activity Recognition
Ravuri, A. (2024) · Journal of Electrical Systems · doi:10.52783/jes.2848 · Cited by 10 · see citing works
Yu, J., Zhang, L., Cheng, D., Huang, W., Wu, H., & Song, A. (2024) · IEEE Transactions on Neural Systems and Rehabilitation Engineering · doi:10.1109/tnsre.2024.3457830 · Cited by 10 · see citing works
MASTER: A Multi-modal Foundation Model for Human Activity Recognition
Zhu, G., Zhao, D. Y., Li, C., Zhao, M., Zhang, Z., Quan, H., & Ma, H. (2025) · Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies · doi:10.1145/3749511 · Cited by 9 · see citing works
Caramaschi, S., Papini, G. B., & Caiani, E. G. (2023) · Applied Sciences · doi:10.3390/app13074175 · Cited by 8 · see citing works
Singh, C. E. J., & Jagatheeswari, A. (2022) · Multimedia Tools and Applications · doi:10.1007/s11042-022-13719-w · Cited by 9 · see citing works
Yin, Z., Liyanage, M., Ottun, A.-R. O., Paul, S., Zuniga, A., Nurmi, P., & Flores, H. (2022) · Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies · doi:10.1145/3570344 · Cited by 8 · see citing works
Multi-occupant tracking with radar and wearable devices for enhanced accuracy in indoor environments
Polo-Rodríguez, A., Anguita-Molina, M. Á., Rojas, I., & Medina-Quero, J. (2025) · Engineering Applications of Artificial Intelligence · doi:10.1016/j.engappai.2025.110872 · Cited by 8 · see citing works
Optimal sensor channel selection for resource-efficient deep activity recognition
Leite, C. F. S., & Xiao, Y. (2021) · ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN) · doi:10.1145/3412382.3458278 · Cited by 8 · see citing works
Khayami, H., Wang, L., Kim, Y., Lee, B., Conroy, D. E., Lazar, A., Choe, E. K., & Kacorri, H. (2025) · Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies · doi:10.1145/3731749 · Cited by 7 · see citing works
Serpush, F., Menhaj, M. B., Masoumi, B., & Karasfi, B. (2023) · Wireless Personal Communications · doi:10.1007/s11277-023-10797-3 · Cited by 7 · see citing works
Rahman, A., Hassan, I., & Ahad, M. A. R. (2021) · ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp) · doi:10.1145/3460418.3479389 · Cited by 7 · see citing works
Image-Based Human Action Recognition with Transfer Learning Using Grad-CAM for Visualization
Alam, M. T., Acquaah, Y. T., & Roy, K. (2024) · IFIP advances in information and communication technology · doi:10.1007/978-3-031-63211-2_10 · Cited by 7 · see citing works
Leveraging a Smartwatch for Activity Recognition in Salat
Eliza, I. J., Al-Nabhan, N., Noor, J., Rahaman, M., & Islam, A. B. M. A. A. (2023) · IEEE Access · doi:10.1109/access.2023.3311261 · Cited by 6 · see citing works
Rahman, A., Nahid, N., Schuller, B. W., & Ahad, M. A. R. (2024) · Scientific Reports · doi:10.1038/s41598-024-81228-x · Cited by 5 · see citing works
Lim, W.-S., Seo, W., Kim, D., & Lee, J. (2023) · IEEE Access · doi:10.1109/access.2023.3294564 · Cited by 5 · see citing works
Sensor-Based Human Activity and Behavior Computing
Antar, A. D., Ahmed, M., & Ahad, M. A. R. (2021) · Intelligent systems reference library · doi:10.1007/978-3-030-75490-7_6 · Cited by 5 · see citing works
Deep Learning Algorithms for Human Activity Recognition in Manual Material Handling Tasks
Bassani, G., Avizzano, C. A., & Filippeschi, A. (2025) · Sensors · doi:10.3390/s25216705 · Cited by 5 · see citing works
Are Gyroscopes an Added Value in Leave-One-Subject-Out Activity Recognition with IMUs?
Shang, M., Raedt, W. D., Varon, C., & Vanrumste, B. (2022) · Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) · doi:10.1109/embc48229.2022.9871845 · Cited by 4 · see citing works
Sensor-Based Human Activity Recognition Using a Hybrid CNN-SVM Approach
Charabi, I., Abidine, M. B., & Fergani, B. (2024) · International Conference on Image and Signal Processing and their Applications (ISPA) · doi:10.1109/ispa59904.2024.10536787 · Cited by 4 · see citing works
Human Action Recognition Using Mediapipe Holistic Keypoints: A Deep Learning Approach
Shandilya, U., Sharma, V., & Mishra, D. (2025) · Communications in computer and information science · doi:10.1007/978-3-031-83796-8_5 · Cited by 4 · see citing works
Khanmohammadi, S., Ehsani, F., Bagheri, R., & Jaberzadeh, S. J. (2025) · Scientific Reports · doi:10.1038/s41598-025-95859-1 · Cited by 4 · see citing works
Human Activity Recognition Using Parallel Cartesian Genetic Programming
Silva, B. M. P., Bernardino, H. S., & Barbosa, H. J. C. (2021) · IEEE Congress on Evolutionary Computation (CEC) · doi:10.1109/cec45853.2021.9504793 · Cited by 4 · see citing works
Zhang, K., Hao, Y., & Fang, Y. (2022) · International Conference on Universal Village (UV) · doi:10.1109/uv56588.2022.10185497 · Cited by 4 · see citing works
Privacy-aware Human Activity Recognition with Smart Glasses for Digital Therapeutics
Sazdov, B., Jakimovski, B., Stankoski, S., Kiprijanovska, I., Sofronievski, B., Gjoreski, M., Nduka, C. C., & Gjoreski, H. (2023) · ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp) · doi:10.1145/3594739.3611323 · Cited by 4 · see citing works
ChatGPT Powered Digital Healthcare System
Lee, J. Y., Jung, G., Chang, Y. K., Kang, Y., & Kim, J. (2023) · International Conference on Information and Communication Technology Convergence (ICTC) · doi:10.1109/ictc58733.2023.10392741 · Cited by 4 · see citing works
Bordvik, D. A., Hou, J., Noori, F. M., Uddin, M. Z., & Tørresen, J. (2022) · International Conference on Electronics, Information, and Communication (ICEIC) · doi:10.1109/iceic54506.2022.9748829 · Cited by 4 · see citing works
Performance Analysis of Hybrid Deep Learning Approach for Human Actions Recognition
Nagpal, D., & Kumar, R. (2022) · Lecture notes in networks and systems · doi:10.1007/978-981-19-4960-9_15 · Cited by 3 · see citing works
Technical considerations of federated learning in digital healthcare systems
Alozie, E., Olagunju, H. I., Faruk, N., & Garba, S. (2024) · Elsevier eBooks · doi:10.1016/b978-0-443-13897-3.00009-6 · Cited by 3 · see citing works
An Effective Approach for Wearable Sensor-Based Human Activity Recognition in Elderly Monitoring
Errafik, Y., Dhassi, Y., Baghrous, M., & Kenzi, A. (2025) · BioMedInformatics · doi:10.3390/biomedinformatics5030038 · Cited by 3 · see citing works
Action Classification for Partially Occluded Silhouettes by Means of Shape and Action Descriptors
Gościewska, K., & Frejlichowski, D. (2021) · Applied Sciences · doi:10.3390/app11188633 · Cited by 3 · see citing works
Early detection of Alzheimer's diseases through IoT
Mansingh, P., Pattanayak, B. K., & Pati, B. (2022) · International Journal of Health Sciences · doi:10.53730/ijhs.v6ns4.9251 · Cited by 3 · see citing works
Healthy Aging: A Proactive Model to Prevent Self-neglecting Behavior in Smart Homes
Chambers, R., & Fahim, M. (2022) · IEEE International Conference on e-Health Networking, Applications and Services (Healthcom) · doi:10.1109/healthcom54947.2022.9982760 · Cited by 3 · see citing works
TinyML based Deep Learning Model for Activity Detection
Kayarvizhy, N., Gera, B. M., Sharma, B., & Dakshinamurthy, S. (2023) · International Journal on Recent and Innovation Trends in Computing and Communication · doi:10.17762/ijritcc.v11i11s.8081 · Cited by 3 · see citing works
(2024) · International journal of intelligent engineering and systems · doi:10.22266/ijies2024.0630.03 · Cited by 3 · see citing works
Context-Aware Complex Human Activity Recognition using Hybrid Deep Learning ModelsPreprint
Otebolaku, A., & Omolaja, A. (2022) · Preprints.org · doi:10.20944/preprints202203.0363.v1 · Cited by 3 · see citing works
Djaja-Jośko, V., Kołakowski, M., Cichocki, J., & Kołakowski, J. (2025) · Sensors · doi:10.3390/s25041151 · Cited by 2 · see citing works
Alert System for Non-Responsive State of an Elderly Person
Mane, V. M., Mahajan, R., Durge, H. A., Ghosh, P., Kadam, K., Mahajan, I., & Muneshwar, P. (2025) · Journal of Computational Systems and Applications · doi:10.63623/3sqjff96 · Cited by 2 · see citing works
A GENERIC COMPUTER VISION TOOL FOR RECOGNISING HUMAN ACTIVITIES
Jacobs, J., & Nel, S. (2023) · The South African Journal of Industrial Engineering · doi:10.7166/34-3-2956 · Cited by 2 · see citing works
A Review on Video Anomaly Detection Datasets
Yossef, I., Gamal, M., Abdel‐Kader, R. F., & Ali, K. (2023) · Suez Canal Engineering, Energy and Environmental Science · doi:10.21608/sceee.2024.262807.1014 · Cited by 2 · see citing works
Haque, M. M., Maruf, A. A., Obeid, A. J., Judi, H. K., Bhuiyan, M. H., & Aung, Z. (2024) · International Conference on Power, Control and Computing Technologies (ICPC2T) · doi:10.1109/icpc2t60072.2024.10474756 · Cited by 2 · see citing works
Thiruvenkatam, P., Thangavel, P., Balasubramanian, K., & Sekar, S. (2024) · International Journal of Pattern Recognition and Artificial Intelligence · doi:10.1142/s021800142456007x · Cited by 2 · see citing works
Harnessing IoT and Robotics for Comprehensive Human Activity Recognition in Smart Buildings
Toupas, P., Tsamis, G., Zotou, D., Giakoumis, D., Votis, K., & Tzovaras, D. K. (2024) · Communications in computer and information science · doi:10.1007/978-3-031-69344-1_12 · Cited by 2 · see citing works
Shrestha, S., & Thomaz, E. (2024) · IEEE/ACM Conference on Connected Health: Applications, Systems and Engineering Technologies · doi:10.1109/chase60773.2024.00031 · Cited by 1 · see citing works
DML-FitAR: A Deep Metric Learning Approach for IMU-Based Fitness Activity Recognition
Li, T., Li, D., Chen, Y., Li, Z., Ma, Y., Liu, D., Feng, X., Wu, J. Y., & Guo, C. (2025) · International Conference on Multimedia Retrieval · doi:10.1145/3731715.3733311 · Cited by 1 · see citing works
Few-Shot Learning for Hand-Based Micro Activity Recognition
Demrozi, F., & Machot, F. A. (2025) · IEEE International Conference on Omni-layer Intelligent Systems (COINS) · doi:10.1109/coins65080.2025.11125749 · Cited by 1 · see citing works
Alzahrani, A., Al-Dayil, R., Alghanim, A. G., & Sharif, M. M. (2025) · Scientific Reports · doi:10.1038/s41598-025-30340-7 · Cited by 1 · see citing works
Personalizing Activity Tracking: Enabling Older Adults to Teach and Train Their Wearables
Khayami, H. (2025) · ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp) · doi:10.1145/3714394.3750554 · Cited by 1 · see citing works
Le, H., Choube, A., Mishra, V., & Intille, S. S. (2026) · Proceedings of the ACM on Interactive Mobile Wearable and Ubiquitous Technologies · doi:10.1145/3831653 · Cited by 3 · see citing works
An Enhanced Subject-Independent Approach for Hand-Based Micro Activities Recognition
Demrozi, F., & Machot, F. A. (2024) · IEEE International Conference on Omni-layer Intelligent Systems (COINS) · doi:10.1109/coins61597.2024.10622123 · Cited by 1 · see citing works
One-Dimensional Motion Representation for Standing/Sitting and Their Transitions
Lee, G., Hayakawa, Y., Watanabe, T., & Li, C. (2024) · Sensors · doi:10.3390/s24216967 · Cited by 1 · see citing works
Tifex-Py: Time-Series Feature Extraction for Python in a Human Activity Recognition Scenario
Ejtehadi, M., Graham, G. E., Ringstrom, C., Du, E., Riener, R., & GRANADOS, D. F. P. (2025) · International Conference on Rehabilitation Robotics · doi:10.1109/icorr66766.2025.11062978 · Cited by 1 · see citing works
Contributions to Human Motion Modeling and Recognition using Non-intrusive Wearable Sensors
Martín, M. (2022) · doi:10.20868/upm.thesis.70493 · Cited by 1 · see citing works
Uslu, G., Unal, B., Aydın-Çakır, A., & Baydere, Ş. (2022) · Internet of things · doi:10.1007/978-3-030-91181-2_2
Elderly Care Using Generative Adversarial Networks (GANs) on Deep Video Analysis
Rajasekaran, S., & Kousalya, G. (2022) · Lecture notes in networks and systems · doi:10.1007/978-981-16-8721-1_6
A Hierarchical Pitman-Yor mixture of Scaled Dirichlet Distributions
Baghdadi, A., Manouchehri, N., & Bouguila, N. (2022) · IEEE International Symposium on Industrial Electronics (ISIE) · doi:10.1109/isie51582.2022.9831530
A smart system to detect non responsive state of elderly people
Shilaskar, S., Joshi, H., Bhatlawande, S. S., & Chandolikar, N. (2023) · AIP conference proceedings · doi:10.1063/5.0179292
Shedding Light on the Energy Usage of Activity Recognition Systems in Homes
Lendínez, A. M., Ruiz, J. L. L., Díaz-Jiménez, D., Espinilla, M., & Nugent, C. (2023) · Lecture notes in networks and systems · doi:10.1007/978-3-031-48590-9_8
Bao, R., Jiayin Li, A., Chen, Y., Yang, K., Chen, Z., & Zhang, Y. (2023) · International Conference on Communication and Network Security (ICCNS) · doi:10.1145/3638782.3638835
Beyond Thresholds: A General Approach to Sensor Selection for Practical Deep Learning-based HAR
Cooper, G., & Marculescu, R. (2024) · IEEE/ACM International Conference on Internet-of-Things Design and Implementation (IoTDI) · doi:10.1109/iotdi61053.2024.00005
Detección de actividades mediante modelos ocultos de Markov jerárquicos
Ramos, R. G., Domingo, J. D., Zalama, E., & Gómez‐García‐Bermejo, J. (2024) · Jornadas de Automática · doi:10.17979/ja-cea.2024.45.10778
Alkahtani, H. K., Al-Kahtani, N. K., Mohammed, G. P., & Marzouk, R. (2025) · Scientific Reports · doi:10.1038/s41598-025-27450-7
Biswas, S. (2026) · Signals and communication technology · doi:10.1007/978-3-032-09241-0_1
Li, T., Li, Z., Li, D., Wu, J., Chen, Y., Feng, X. T., Ma, Y., Liu, D., & Guo, C. (2025) · IEEE International Joint Conference on Biometrics (IJCB) · doi:10.1109/ijcb65343.2025.11410654
AI and IoT in designing smart oncology patient monitoring systems
Bagwan, M. B., Asudani, D. S., Virendra, P. M., Choudhary, S., Goswami, R. A., & Antad, S. M. (2026) · AIP conference proceedings · doi:10.1063/5.0327510
Teachable Tracking: Supporting Older Adults in Shaping Their Own Activity Recognition Systems
Khayami, H. (2026) · ACM SIGACCESS Accessibility and Computing · doi:10.1145/3803767.3803771
Beyond Action Segmentation: An IMU-based Fitness Tracking System with Cycle-Level Granularity
Li, T., Jin, B., Li, D., Chen, Y., Feng, X. T., Ma, Y., Liu, D., Wu, J., & Guo, C. (2026) · IEEE International Conference on Acoustics Speech and Signal Processing · doi:10.1109/icassp55912.2026.11462265
- Authors
- Schrader, L., Vargas Toro, A., Konietzny, S., Rüping, S., Schäpers, B., Steinböck, M., Krewer, C., Müller, F., Güttler, J., & Bock, T.
- Affiliations
- Fraunhofer Institute for Intelligent Analysis and Information Systems (DE)
- Schön Klinik Bad Aibling (DE)
- Technical University of Munich (DE)
- Corresponding author
- Schrader, Lisa
- ORCID
- Venue
- Journal of Population Ageing
- Published
- 2020-02-24
- Volume
- 13
- Issue
- 2
- Pages
- 139-165
- ISSN
- 1874-7876 (ISSN-L)
- 1874-7884
- OpenAlex
- W3007383329
- Semantic Scholar
- 907fb292cb8afd3e94487a0013bb1d6dd36420c5
- Cited by
- 110
- References
- 40
- Citations by year
- 2026: 15 · 2025: 17 · 2024: 16 · 2023: 27 · 2022: 23 · 2021: 9 · 2020: 3
- FWCI
- 6.03
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Journal of Population Ageing (publishedVersion, cc-by)
- Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion, cc-by)
- Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion, other-oa)
- mediaTUM (Technical University of Munich) (submittedVersion, cc-by)
- Funders
- Horizon 2020 Framework Programme (690425)
- Topics
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
- Social Sciences › Demography › Technology Use by Older Adults
- Health Sciences › Medicine › Physiology › Physical Activity and Health
- Keywords
- human activity recognition, older adults, rehabilitation, early intervention, wearable sensors, ambient sensors, activity monitoring, activities of daily living, lying posture, hospital data collection, sensor data recording
About these checks
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