Academic Journal
Wearable Based Calibration of Contactless In-home Motion Sensors for Physical Activity Monitoring in Community-Dwelling Older Adults
| العنوان: | Wearable Based Calibration of Contactless In-home Motion Sensors for Physical Activity Monitoring in Community-Dwelling Older Adults |
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| المؤلفون: | Narayan Schütz, Hugo Saner, Angela Botros, Philipp Buluschek, Prabitha Urwyler, René M. Müri, Tobias Nef |
| المصدر: | Frontiers in Digital Health, Vol 2 (2021) |
| بيانات النشر: | Frontiers Media S.A., 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Medicine LCC:Public aspects of medicine LCC:Electronic computers. Computer science |
| مصطلحات موضوعية: | sensor calibration, pervasive computing, passive infrared, physical activity, older adults, outing imputation, Medicine, Public aspects of medicine, RA1-1270, Electronic computers. Computer science, QA75.5-76.95 |
| الوصف: | Passive infrared motion sensors are commonly used in telemonitoring applications to monitor older community-dwelling adults at risk. One possible use case is quantification of in-home physical activity, a key factor and potential digital biomarker for healthy and independent aging. A major disadvantage of passive infrared sensors is their lack of performance and comparability in physical activity quantification. In this work, we calibrate passive infrared motion sensors for in-home physical activity quantification with simultaneously acquired data from wearable accelerometers and use the data to find a suitable correlation between in-home and out-of-home physical activity. We use data from 20 community-dwelling older adults that were simultaneously provided with wireless passive infrared motion sensors in their homes, and a wearable accelerometer for at least 60 days. We applied multiple calibration algorithms and evaluated results based on several statistical and clinical metrics. We found that using even relatively small amounts of wearable based ground-truth data over 7–14 days, passive infrared based wireless sensor systems can be calibrated to give largely better estimates of older adults' daily physical activity. This increase in performance translates directly to stronger correlations of measured physical activity levels with a variety of age relevant health indicators and outcomes known to be associated with physical activity. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2673-253X |
| Relation: | https://www.frontiersin.org/articles/10.3389/fdgth.2020.566595/full; https://doaj.org/toc/2673-253X |
| DOI: | 10.3389/fdgth.2020.566595 |
| URL الوصول: | https://doaj.org/article/d45fd886e2ad4e7faaaaf8487b56ba20 |
| رقم الانضمام: | edsdoj.45fd886e2ad4e7faaaaf8487b56ba20 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 2673253X |
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| DOI: | 10.3389/fdgth.2020.566595 |