Monitoring Gait and Physical Activity of Elderly Frail Individuals in Free-Living Environment: A Feasibility Study.

Step length, from the lumbar-worn device, showed a decreasing trend toward the frailty groups, and step duration was higher in frail individual compared to non-frail, although both the endpoints were not significantly different across frailty groups.

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Time spent in sedentary activity, from the wrist-worn device, showed an increasing trend toward the frail group, and it resulted effective in distinguishing frail participants both from pre-frail and non-frail ones.

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