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Frailty assessment is a critical approach to assessing the health status of older people. There is interest in the nature and degree of frailty in various physical, environmental, social, psychological, and physiological domains. The physical domain has proved to be the most important as the degree of frailty can be assessed objectively. Various clinical tools deployed by geriatricians in assessing frailty can be grouped into two categories of questionnaire-based and physical performance analysis. In the former approach, answers vary from double (yes or no) to multiple choices and are marked accordingly. Whereas, in performance analysis, the time taken by a subject to complete a physical task such as walking for 3 m is measured. The questionnaire-based method is subjective, and the time-based performance analysis does not identify the kinematic characteristics of motion and its root causes of it. However, motion characteristics are crucial in measuring the degree of frailty. Overall, r
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