A noninvasive handheld assistive device to accommodate essential tremor: A pilot study
Open accessAbstract
BACKGROUND: We explored whether a noninvasive handheld device using Active Cancellation of Tremor (ACT) technology could stabilize tremor-induced motion of a spoon in individuals with essential tremor (ET). METHODS: Fifteen ET subjects (9 men, 6 women) performed 3 tasks with the ACT device turned on and off. Tremor severity was rated with the Fahn-Tolosa-Marin Tremor Rating Scale (TRS). Subjective improvement was rated by subjects with the Clinical Global Impression Scale (CGI-S). Tremor amplitude was measured using device-embedded accelerometers in 11 subjects. RESULTS: TRS scores improved with ACT on (versus off) in all 3 tasks: holding (1.00 ± 0.76 vs. 0.27 ± 0.70; P = 0.016), eating (1.47 ± 1.06 vs. 0.13 ± 0.64; P = 0.001), and transferring (1.33 ± 0.82 vs. 0.27 ± 0.59; P = 0.001). CGI-S improved with eating and transferring, but not the holding task. Accelerometer measurements demonstrated 71% to 76% reduction in tremor with the ACT device on. CONCLUSIONS: This noninvasive handheld ACT device can reduce tremor amplitude and severity for eating and transferring tasks in individuals with ET.
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Claims the paper makes
4 of 13 cited sources checked · 0 supported · 0 flagged · accuracy not yet measured
- Findingown data
In ET subjects, CGI-S did not improve with holding task when ACT device on.
“CGI-S improved with eating and transferring, but not the holding task.”
Quote in the paperNot a substantial claim - Findingown data
In ET subjects, TRS transferring task score improved with ACT device on compared to off (1.33±0.82 vs. 0.27±0.59, p=0.001).
“TRS scores improved with ACT on (versus off) in all 3 tasks: holding (1.00±0.76 vs. 0.27±0.70, p=0.016), eating (1.47±1.06 vs. 0.13±0.64, p=0.001) and transferring (1.33±0.82 vs. 0.27±0.59, p=0.001).”
Quote in the paperSubstantial claim - Findingown data
For the 11 analyzable subjects, accelerometer data indicated reduced tremor amplitude across all tasks, including holding.
“Accelerometer recordings of these 11 subjects showed improvement in tremor amplitude for all tasks (Table 3, Supplemental Figure 2a), including the holding task.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
- The authors state this as an assumption: The error from gravitational artifacts is small because the hand is mostly horizontal.
- Findingown data
Accelerometer data showed a 71-76% decrease in tremor when the ACT device was on.
“Accelerometer measurements demonstrated 71-76% reduction in tremor with ACT device on.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
- The authors state this as an assumption: The error from gravitational artifacts is small because the hand is mostly horizontal.
- Findingown data
In ET subjects, TRS holding task score improved with ACT device on compared to off (1.00±0.76 vs. 0.27±0.70, p=0.016).
“TRS scores improved with ACT on (versus off) in all 3 tasks: holding (1.00±0.76 vs. 0.27±0.70, p=0.016), eating (1.47±1.06 vs. 0.13±0.64, p=0.001) and transferring (1.33±0.82 vs. 0.27±0.59, p=0.001).”
Quote in the paperSubstantial claim
- Findingown data
In ET subjects, CGI-S improved with transferring task when ACT device on.
“CGI-S improved with eating and transferring, but not the holding task.”
Quote in the paperSubstantial claim - Findingown data
In ET subjects, TRS eating task score improved with ACT device on compared to off (1.47±1.06 vs. 0.13±0.64, p=0.001).
“TRS scores improved with ACT on (versus off) in all 3 tasks: holding (1.00±0.76 vs. 0.27±0.70, p=0.016), eating (1.47±1.06 vs. 0.13±0.64, p=0.001) and transferring (1.33±0.82 vs. 0.27±0.59, p=0.001).”
Quote in the paperSubstantial claim - Findingown data
In ET subjects, CGI-S improved with eating task when ACT device on.
“CGI-S improved with eating and transferring, but not the holding task.”
Quote in the paperSubstantial claim - Study design and conductreasoning
Achieving genuine blinding in this study may have been challenging.
“Despite this, true blinding may have been difficult to achieve in a study like this.”
Quote in the paperNot a substantial claim- Rests on an assumption: The ACT device prototype produces no sound or palpable sensation that the user can detect when it is on.
- Interpretationown data
The ACT device is best suited to mild-to-moderate tremor.
“Two subjects had severe tremor amplitude with DBS turned off, preventing use of our device, suggesting that the device is most suitable for mild-moderate tremors.”
Quote in the paperSubstantial claim - Study design and conductreasoning
Unblinding was most likely during the eating and transferring tasks, since the foam blocks gave visible evidence of stabilization.
“The potential to unblind was greatest during the eating and transferring tasks, because they used foam blocks to represent food, which provided evidence of stabilization.”
Quote in the paperNot a substantial claim- Rests on an assumption: The ACT device prototype produces no sound or palpable sensation that the user can detect when it is on.
- Interpretationown data
The findings suggest that subjects remained unaware of device status at least for the holding task.
“This suggests that at least during this task, subjects were blinded as to whether the device was on or off.”
Quote in the paperNot a substantial claim- Rests on an assumption: The ACT device prototype produces no sound or palpable sensation that the user can detect when it is on.
- Interpretationown data
The non-invasive handheld ACT device is able to lower tremor amplitude and severity during eating and transferring tasks in people with ET.
“This non-invasive, handheld ACT device can reduce tremor amplitude and severity for eating and transferring tasks in individuals with ET.”
- Also stated in: § DISCUSSION · boosted
“The device significantly reduced spoon tremor with eating and transferring tasks based on clinical ratings as well accelerometer data.”
Quote in the paperSubstantial claim- The authors state this as an assumption: The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
- The authors state this as an assumption: The error from gravitational artifacts is small because the hand is mostly horizontal.
- Also stated in: § DISCUSSION · boosted
- Study design and conductown data
The accelerometer method was checked against a high-speed camera in the vertical plane, which confirmed the vertical tremor amplitude obtained from accelerometry.
“This methodology was validated in the vertical plane of motion using a high-speed camera (120 fps) that recorded vertical motion of the spoon. Image processing (MATLAB, version R2010a, MathWorks, Inc., Nattick, MA) yielded the vertical absolute position over time, confirming the vertical tremor amplitude determined from the accelerometer.”
Quote in the paperSubstantial claim
- Classified as probably not a substantial claim. 10
- May combine two claims. 12
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationTremor suppression orthoses have also been studied; they work by mechanically stopping the tremor.
“Tremor suppression orthoses also have been investigated10-12, which function by physically forcing a person's tremor to cease13.”
Quote in the paperNot a substantial claim2 of 4 sources checked- cites [10] source
The introduction and Section III describe a wearable orthosis that applies mechanical forces to suppress tremor, supporting the claim that such devices have been studied and act mechanically. Section III specifies that the aim is to decrease tremor amplitude, however, and the discussion reports reductions—not that the tremor ceases entirely. (LLM, conf=0.86)
Experimental — accuracy not yet measured - cites [11] source
- cites [12] source
The Introduction (p. 1) describes a tremor-management orthosis that applies damping or inertial loads to the limb, supporting the claim that mechanical orthoses have been investigated for tremor suppression. It says this loading reduces tremorous motion, not that it forces a person's tremor to cease. The Discussion (p. 6) reports preliminary tests of the device's operation, not complete tremor cessation. (LLM, conf=0.87)
Experimental — accuracy not yet measured - cites [13]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
May combine two claims.
PremisecitationLimb weighting is often recommended as a non-invasive tremor management approach, yet it lacks strong supporting evidence.
“Weighting the limb is a commonly recommended non-invasive way to manage limb tremor7, but has little evidence to support it8, 9.”
Quote in the paperSubstantial claim1 of 3 sources checked- cites [7] source
- cites [8] source
- cites [9] source
The Results report a significant reduction in intention tremor in 20 of 31 patients, supporting limb weighting as a potential management approach. But the paper does not say weighting is commonly recommended or assess whether the overall evidence base is weak; its Discussion describes its own findings as confirming a significant reduction. No page numbers are available in our copy. (LLM, conf=0.82)
Experimental — accuracy not yet measured
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationTremor frequencies can range from 2 to 15 Hz, and larger tremor amplitudes tend to occur at lower frequencies.
“While tremor frequencies can vary across a range between 2-15 Hz, higher tremor amplitudes correlate with lower frequencies6.”
Quote in the paperNot a substantial claim1 of 1 sources checked- cites [6] source
The Results and Discussion report an inverse relationship between tremor amplitude and frequency, particularly for more severe essential tremor. But the paper describes the dominant peak-frequency range for postural hand tremor as about 4–11 Hz, not 2–15 Hz (introductory passage indexed under Abstract; page unavailable). (LLM, conf=0.88)
Experimental — accuracy not yet measured
May combine two claims.
Findingown dataWhen the device was active, subjects reported no improvement in the holding task on the CGI-S, even though TRS and accelerometer measures showed marked improvement.
“However, with the device turned on, subjects did not notice improvement in the holding task (based on CGI-S) despite the fact that both TRS and accelerometer measurements showed considerable improvement.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataAccelerometer and video motion data were analyzable for 11 ET subjects, while excessive signal noise prevented use in four subjects.
“Eleven subjects (9M/2F; mean age 70.5 ± 5.7 years; mean disease duration 30 ± 19 years) had accelerometer and video motion data that could be analyzed; four subjects had excessive signal noise discovered during post-processing that prevented their use.”
Quote in the paperSubstantial claimMay combine two claims.
Findingown dataWhen the ACT device was off, a prominent acceleration peak appeared at the dominant tremor frequency, and this peak was much smaller when the device was on.
“With the ACT device turned off, a strong acceleration peak at the subject's dominant tremor frequency was noticed, which was greatly reduced with the ACT device turned on (Supplemental Figure 2b).”
Quote in the paperSubstantial claim- The authors state this as an assumption: The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
- The authors state this as an assumption: The error from gravitational artifacts is small because the hand is mostly horizontal.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
Findingown dataFor two subjects, severe dominant-hand tremor with DBS off made the ACT device ineffective, and they used the non-dominant hand instead.
“except in 2 subjects whose dominant hand tremor was so severe with DBS turned off that the ACT device was ineffective. The non-dominant hand was used for these 2 subjects.”
Quote in the paperNot a substantial claimMay combine two claims.
InterpretationreasoningBy stabilizing the tremor while still permitting hand movement, the device may be more comfortable and easier for users to adopt.
“Because our device stabilizes tremor while allowing the hand to shake, it has the added benefits of being comfortable and easily adopted by users.”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim.
Study design and conductown dataThe study assessed tremor only during spoon use.
“Additionally, only tremor while using a spoon was evaluated.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationEssential tremor produces action tremors in the upper limbs that can disrupt everyday activities like eating.
“Essential tremor (ET) causes upper limb action tremors that may interfere with daily tasks such as eating1.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [1] source
Classified as probably not a substantial claim.
Study design and conductown dataTrial order for device-on and device-off conditions was randomized.
“Subjects then performed each task with the device turned on and off, though the order was randomized.”
Quote in the paperSubstantial claimClassified as probably not a substantial claim. May combine two claims.
Study design and conductown dataBoth the subjects and the evaluating neurologist were kept unaware of whether the device was active.
“In these trials, both subject and neurologist were blinded and not told whether the device was turned on or off.”
Quote in the paperSubstantial claim- Rests on an assumption: The ACT device prototype produces no sound or palpable sensation that the user can detect when it is on.
May combine two claims.
PremisecitationSurgery for ET is effective but is usually limited to patients with more severe tremor.
“Surgical treatments are effective, but typically reserved for more severe tremor2, 3.”
Quote in the paperSubstantial claim0 of 2 sources checkedMay combine two claims.
PremisecitationDrug treatments for ET have variable effectiveness and can be constrained by adverse effects.
“Medications for ET are variably effective and sometimes limited by side effects2.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [2] source
Probably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductown dataTremor severity was assessed with the Fahn-Tolosa-Marin Tremor Rating Scale (TRS) while subjects were off medication.
“Overall tremor severity was evaluated in each subject using the TRS5 while off medication.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [5]
Couldn’t be matched to a paper in Crossref, so it can’t be checked.
Probably not a substantial claim: may not pass S4 (based).
Study design and conductreasoningAcceleration signals are treated as estimates of true segmental motion.
“While this error is assumed to be small because the hand is mostly horizontal, the acceleration signals serve as estimates for the true segmental motion.”
Quote in the paperNot a substantial claim- The authors state this as an assumption: The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
- The authors state this as an assumption: The error from gravitational artifacts is small because the hand is mostly horizontal.
Probably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductreasoningGravitational artifacts from larger hand rotations may have introduced error on the horizontal axes.
“Gravitational artifacts for more pronounced hand rotations may have contributed to error on the horizontal axes.”
Quote in the paperNot a substantial claim- The authors state this as an assumption: The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
- The authors state this as an assumption: The error from gravitational artifacts is small because the hand is mostly horizontal.
Probably not a substantial claim: may not pass S3 (load-bearing).
Study design and conductreasoningLong-term acceptability is still unknown.
“the acceptability for long-term use remains unknown.”
Quote in the paperNot a substantial claim
The authors state this as an assumption.
The patients' intentional movements occurred well below the 2 Hz cutoff frequency.
“assuming that the patients’ intentional motion occurred well below the 2 Hz cutoff frequency.”
The authors state this as an assumption.
The error from gravitational artifacts is small because the hand is mostly horizontal.
“While this error is assumed to be small because the hand is mostly horizontal”
The paper relies on this without support.
The ACT device prototype produces no sound or palpable sensation that the user can detect when it is on.
“The device prototype also does not emit a sound or cause a palpable sensation that can be detected by the user when turned on.”
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?
The dissemination and availability of tremor suppression robotic systems has been limited.
“In practice, the dissemination and availability of tremor suppression robotic systems has been limited.”
From Voluntary-Driven Elbow Orthosis with Speed-Controlled Tremor Suppression (2016) · cites this paper as Pathak et al., 2014
The Introduction describes an ACT device developed for a pilot study, and the Discussion mentions other tremor-suppression orthoses. Neither section addresses how widely robotic tremor-suppression systems have been disseminated or whether they are available in practice (searched: dissemination, availability, commercial availability, and adoption). (LLM, conf=0.72)
Experimental — accuracy not yet measured
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.
Eating improvement is described two different ways
MinorThe abstract says the subjective ratings improved for eating, but a later discussion sentence says the opposite. These statements cannot both be true as written.
“CGI-S improved with eating and transferring, but not the holding task.”
“Improvement with eating was not demonstrated and the acceptability for long-term use remains unknown.”
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Cited by
Sorted by citations
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“For example, several emphasize tremor cancellation during the feeding task [12, 48, 51], while others provide arm support for users who can move their arm but do not have sufficient muscular strength for continued large movements [11, 14, 64].”
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“…(2019)), smart gait-aid goggles for Parkinson’s patients (Ahn et al. (2017)) and active canes (Lachtar et al. (2019)); they can be also be more complex, such as exoskeletons (Gopura et al. (2016); Pazzaglia and Molinari (2016); Young and Ferris (2016); Hill et al. (2017); Settembre et al. (2020)).”
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Treatment of essential tremor: current status
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Voluntary-Driven Elbow Orthosis with Speed-Controlled Tremor Suppression
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“In contrast to the aforementioned investigative devices, only a limited number of devices offering passive and active tremor attenuation have become commercially available (Michaelis, 1988; Pathak et al., 2014), and are for the most part non-ambulatory in nature.”
BackgroundTherapeutic advances in tremor
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“Finally, more dedicated devices have been successfully developed for tremor patients who have difficulty using the computer mouse (assistive technique–adaptive path smoothing via B-spline) or a spoon (handheld device using active cancellation of tremor technology).(70,71) Conclusions”
MethodA Community-Centered Design Framework for Robot-Assisted Feeding Systems
Bhattacharjee, T., Cabrera, M. E., Caspi, A., Çakmak, M., & Srinivasa, S. S. (2019) · International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS) · doi:10.1145/3308561.3353803 · Cited by 39 · see citing works
“For example, several systems emphasize tremor cancellation during feeding task [58, 13, 63], while others provide arm support for users who can move their arm but do not have suffcient muscular strength for continued large movements [80, 12, 15].”
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“These may be simple approaches as visual scanning through video [65], [70], [72], [120], [125]–[127] and performance timing [55], [56], [124] or the integration of more complex methods as EMG techniques [62], [68]–[70], [76], [77], [81], [97], [120], [126], force platforms for mea-”
MethodEmerging strategies in the management of essential tremor
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“Preliminary data suggests that this is an effective and safe method to improve various activities of daily living but this concept may be suitable for a mild and moderate degree of tremor only [Pathak et al. 2014].”
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“In a pilot study with 15 participants using the Liftware spoon, Pathak et al. (2014) compared the participants’ performance as they completed tasks with the ACT device turned on and off.”
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“never (0) rarely (1) sometimes (2) Quite frequently (3) nearly always (4)”
BackgroundMethod4D printing of soft orthoses for tremor suppression
Mohammadi, M., Zolfagharian, A., Bodaghi, M., Xiang, Y., & Kouzani, A. Z. (2022) · Bio-Design and Manufacturing · doi:10.1007/s42242-022-00199-y · Cited by 37 · see citing works
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Tremor Control Devices for Essential Tremor: A Systematic Literature Review
Castrillo-Fraile, V., Casas-Peña, E., Trejo Gabriel Y Galán, J. M., López, P. D. D., Collazo, C., & Cubo, E. (2019) · Europe PMC (PubMed Central) · doi:10.7916/tohm.v0.688 · Cited by 17 · see citing works
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“have shown the gyroscopic spoon assist device to be effective in a cohort of patients with essential tremor.[3] The gyroscopic device has also been shown to be Submitted: 13-Feb-2019 Revised: 26-Feb-2019 Accepted: 12-Mar-2019 Published: 10-Jun-2020”
BackgroundModeling and experimental study of a hand tremor suppression system
Abbasi, M., & Afsharfard, A. (2018) · Mechanism and Machine Theory · doi:10.1016/j.mechmachtheory.2018.04.009 · Cited by 17 · see citing works
Assistive Methodologies for Parkinson's Disease Tremor Management—A Health Opinion
Dineshkumar, V., Dolly, D. R. J., Jagannath, D. J., & Peter, J. D. (2022) · Frontiers in Public Health · doi:10.3389/fpubh.2022.850805 · Cited by 12 · see citing works
Evaluation of the usability of an actively actuated arm support
Lebrasseur, A., Lettre, J., Routhier, F., et al. (2019) · Assistive Technology · doi:10.1080/10400435.2019.1629124 · Cited by 10 · see citing works
Keeping Mobile Communication Channels Static With Antenna Counter-Movements
Artner, G. (2020) · IEEE Access · doi:10.1109/access.2020.2975772 · Cited by 9 · see citing works
“Medical devices detect and counter-act movements, such as robotic canes for senior citizens [15] and robotic spoons for tremor patients [16].”
BackgroundTowards assistive human-robot micro manipulation
Bergström, N., Huang, S., Yamakawa, Y., et al. (2016) · doi:10.1109/humanoids.2016.7803421 · Cited by 9 · see citing works
“In this work we do this using vision, and by letting the compensation occur on the target object side, there is no need to carry the extra weight of the device, 100 grams in [8].”
BackgroundMethodBhidayasiri, R., Prasertpan, T., & Tinazzi, M. (2024) · Elsevier eBooks · doi:10.1016/b978-0-323-99494-1.00020-4 · Cited by 5 · see citing works
Taşar, B., Tatar, A. B., Tanyıldızı, A. K., & Yakut, O. (2023) · Medical & Biological Engineering & Computing · doi:10.1007/s11517-023-02886-z · Cited by 6 · see citing works
Physiology of Tremor Reduction by Putting the Hands Together in Essential Tremor
McGurrin, P. M., Felipe Vial, U., Osterholt, T., Norato, G., Khan, I., Haubenberger, D., Ehrlich, D. J., & Hallett, M. (2021) · Movement Disorders Clinical Practice · doi:10.1002/mdc3.13395 · Cited by 4 · see citing works
Clinical Tremor Severity Estimation Using an Instrumented Eating Utensil
Miocinovic, S., Shoeb, A. H., Wang, S., Byrd, E. A., Swann, N. C., Pathak, A., & Ostrem, J. L. (2017) · Journal of Parkinson s Disease · doi:10.3233/jpd-160929 · Cited by 4 · see citing works
Self-citationFuture Perspectives: Assessment Tools and Rehabilitation in the New Age
Gilmore, G., & Jog, M. (2017) · Springer eBooks · doi:10.1007/978-3-319-46062-8_10 · Cited by 4 · see citing works
What's new about hydration in dementia?
Theodoridis, X., Poulia, K., & Chourdakis, M. (2024) · Current Opinion in Clinical Nutrition & Metabolic Care · doi:10.1097/mco.0000000000001089 · Cited by 3 · see citing works
Kashif, M., Mustafa, R., Bunyad, S., Aslam, N., Arshad, F., & Umar, B. (2023) · Physiotherapy Quarterly · doi:10.5114/pq.2023.125165 · Cited by 3 · see citing works
Computational study and validation of a novel passive hand tremor attenuator
Shah, M. R., Goode, D., & Mohammadi, H. (2022) · Journal of Medical Engineering & Technology · doi:10.1080/03091902.2022.2134482 · Cited by 3 · see citing works
“The Liftware Steady (Verily Life Sciences, San Francisco, CA) device consists of a motion-generating platform with two DC motors to move utensil attachments in the opposite direction of the tremor [26,27].”
MethodImproving mobile communications with antennas that map the channel and move to local maxima
Artner, G. (2023) · Microwave and Optical Technology Letters · doi:10.1002/mop.33594 · Cited by 2 · see citing works
“11 Mechanical instruments and phased arrays are highly developed to move antennas for radar applications, 12,13 and advances in metamaterial antennas 14 and reconfigurable intelligent surfaces (RIS) 15 might facilitate electric movement.”
BackgroundDesign of a stabilisation platform for Parkinson’s disease patient
Fraiwan, L., Amir, S., Ahmed, F., & Halepota, J. (2018) · Journal of Medical Engineering & Technology · doi:10.1080/03091902.2018.1430183 · Cited by 2 · see citing works
“Accelerometer measurements from the devices reported a 71% to 76% reduction in tremors with the ACT device, indicating an effective and efficient design [13].”
MethodAssessing and addressing footwear needs in Parkinson’s disease—design thinking in neurology
Sayadi, J. J., Sayadi, L. R., Fijany, A. J., Chopan, M., & Hermanowicz, N. S. (2019) · Neurorehabilitation · doi:10.3233/nre-192897 · Cited by 1 · see citing works
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Self-citationHold the line: Restoring artistic expression in VR for people with Parkinson’s
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Developing a wearable device for upper extremity tremors
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“In a pilot study using non-invasive handheld active tremor-reducing device, an average tremor supression of 73% was reported [44].”
MethodActive Control Experiments on a Smart Robotic Glass with End-Point Control for Parkinson’s Patients
Ayana, E. K., Kılıç, M., Yaşar, C. F., & Engin, Ş. N. (2023) · Applied Bionics and Biomechanics · doi:10.1155/2023/8310673
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Concept of Human-like Welfare Meal Assistance Robot System
Hashikawa, F., Sato, Y., & Tanaka, K. (2022) · Journal of the Institute of Industrial Applications Engineers · doi:10.12792/jiiae.10.46
Removing the Constraints of Disability
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The Effect of Tactile Biofeedback on the Wrist to Suppress Hand Tremors
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“This concept provides assistance through a Smart Material Actuation (SMA) platform which stabilizes the tool carried by the patient by controlling the tremor in a specific range of frequencies [8], [9].”
BackgroundResearch of hand tremor vibrations and interference with external me-chanical oscillations source
Venslauskas, M., Litvinas, E., Juknevičius, A. R., et al. (2016) · Mechanika · doi:10.5755/j01.mech.22.5.16351
Personalized intelligent prosthesis for tremor suppression
Cottrell, P., Kurniawan, S., & Teodorescu, M. (2016) · ACM SIGACCESS Accessibility and Computing · doi:10.1145/2904092.2904098
- Authors
- Pathak, A., Redmond, J. A., Allen, M., & Chou, K. L.
- Affiliations
- Lift Labs Design San Francisco California USA
- University of Michigan (US)
- Corresponding author
- Chou, Kelvin L.
- Venue
- Movement Disorders
- Publisher
- Wiley
- Published
- 2013-12-27
- Volume
- 29
- Issue
- 6
- Pages
- 838-842
- ISSN
- 0885-3185 (ISSN-L)
- 1531-8257
- PMC
- PMC4156033
- OpenAlex
- W1792353540
- Semantic Scholar
- 907c9b8f4a6790cc5d2be24c581d715f41ae22be
- Cited by
- 54
- References
- 12
- Citations by year
- 2026: 4 · 2025: 1 · 2024: 3 · 2023: 4 · 2022: 7 · 2021: 4 · 2020: 3 · 2019: 10 · 2018: 4 · 2017: 3 · 2016: 7 · 2015: 4
- FWCI
- 2.33
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Movement Disorders (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Deep Blue (University of Michigan) (submittedVersion)
- Funders
- National Institutes of Health (5r44ns070438-03)
- National Institute of Neurological Disorders and Stroke (U10NS044504, R44 NS070438, 5R44NS070438)
- Topics
- Health Sciences › Medicine › Neurology › Neurological disorders and treatments
- Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
- Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
- Keywords
- essential tremor, tremor amplitude, transfer tasks, accelerometer
- MeSH terms
- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Movement, Pilot Projects, Psychomotor Performance, Self-Help Devices, Severity of Illness Index, Essential Tremor, Accelerometry
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