Comparison of Human Interpretation and a Rule-Based Algorithm for Instrumented Sit-to-Stand Test

Abstract

Accumulating evidence suggests the clinical importance of assessing the physical performance of the lower extremities in older adults as a diagnostic marker, 1-3) outcome predictor, [4][5][6] and clinical outcome measure. [7][8][9] For example, the assessment of the physical performance of the lower extremities is an essential component in diagnosing sarcopenia, a common geriatric syndrome defined as a state of decreased muscle mass, muscle strength, and/or physical performance. 2,10) Longitudinal studies have shown that decreased physical performance of the lower extremities is associated with falls, functional decline, and mortality. [11][12][13][14][15] Furthermore, meaning-

Korean Working Group on Sarcopenia Guideline: Expert Consensus on Sarcopenia Screening and Diagnosis by the Korean Society of Sarcopenia, the Korean Society for Bone and Mineral Research, and the Korean Geriatrics Society

“…However, recent advances in sensor technology have enabled the development of automatic devices that can capture human biomechanical parameters in these tests. Devices have been developed and validated for tests such as gait speed 76 ) and other gait parameters, 77 ) TUG test, chair stand test, 78 , 79 ) and the SPPB. 80 )…”