A Review of Activity Trackers for Senior Citizens
Abstract: The objective assessment of physical activity levels through wearable inertial-basedmotion detectors for the automatic, continuous and long-term monitoring of people in free-livingenvironments is a well-known research area in the literature. However, their application to olderadults can present particular constraints. This paper reviews the adoption of wearable devices insenior citizens by describing various researches for monitoring physical activity indicators, such asenergy expenditure, posture transitions, activity classification, fall detection and prediction, gait andbalance analysis, also by adopting consumer-grade fitness trackers with the associated limitationsregarding acceptability. This review also describes and compares existing commercial productsencompassing activity trackers tailored for older adults, thus providing a comprehensive outlook ofthe status of commercially available motion tracking systems. Finally, the impact of wearable deviceson life and health insurance companies, with a description of the potential benefits for the industryand the wearables market, was analyzed as an example of the potential emerging market drivers forsuch technology in the future.
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