Cited by 20Physical Activity and HealthContext-Aware Activity Recognition SystemsBalance, Gait, and Falls Prevention

SenseWearMini and Actigraph GT3X Accelerometer Classification of Observed Sedentary and Light-Intensity Physical Activities in a Laboratory Setting

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Feehan, Lynne M., Goldsmith, Charles H., Leung, April Y. F., Li, Linda C.·2016·Physiotherapy Canada

Abstract

Purpose: To compare the ability of SenseWear Mini (SWm) and Actigraph GT3X (AG 3) accelerometers to differentiate between healthy adults' observed sedentary and light activities in a laboratory setting. Methods: The 22 participants (15 women, 7 men), ages 19 to 72 years, wore SWm and AG 3 monitors and performed five sedentary and four light activities for 5 minutes each while observed in a laboratory setting. Performance was examined through comparisons of accuracy, sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios. Correct identification of both types of activities was examined using area under the receiver operating characteristic curve (AUC). Results: Both monitors demonstrated excellent ability to identify sedentary activities (sensitivity>0.89). The SWm monitor was better at identifying light activities (specificity 0.61–0.71) than the AG 3 monitor (specificity 0.27–0.47) and thus also showed a greater ability to correctly identify both sedentary and light activities (SWm AUC 0.84; AG 3 AUC 0.62–0.73). Conclusions: SWm may be a more suitable monitor for detecting time spent in sedentary and light-intensity activities. This finding has clinical and research relevance for evaluation of time spent in lower intensity physical activities by sedentary adults.

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  1. [1]1. World Health Organization. Global recommendations on physical activity for health [Internet]. Geneva: The Organization; 2010. [cited 2015 May 16]. Available from: http://www.who.int/dietphysicalactivity/publications/9789241599979/en/index.html [Google Scholar]
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Authors
Feehan, L. M., Goldsmith, C. H., Leung, A. Y. F., & Li, L. C.
Affiliations
  • University of British Columbia (CA)
  • Simon Fraser University (CA)
  • Research Canada (CA)
Corresponding author
Feehan, Lynne M.
Venue
Physiotherapy Canada
Published
2016-05
Volume
68
Issue
2
Pages
116-123
ISSN
  • 0300-0508 (ISSN-L)
  • 1708-8313
OpenAlex
W2235146347
Cited by
20
References
42
Citations by year
2025: 1 · 2024: 2 · 2023: 2 · 2021: 2 · 2020: 3 · 2019: 2 · 2018: 5 · 2017: 3
FWCI
2.68
Type
journal article
Language
en
Open access
Locations
  • Physiotherapy Canada (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
Keywords
ActiGraph GT3X+, accelerometer, sedentary behavior, light physical activity, physical activity classification, laboratory observation, healthy adults

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