Chair Kinematics, a novel criteria for frailty status classification

Abstract

A quarter to a half of people over 85. There is an urge to tackle this syndrome to assess the risk for an elderly to become frail. Performance tests such as the 30-s chair stand test (30-s CST) are a cornerstone for detecting early decline. Predictions are based on the number of repetitions instead of how they are performed. Latest advances show that kinematics from chair-related transitions are able to track frailty status. Here, the most interesting parameters for the 30-s CST extracted from the literature are presented. A classification tree was used to assess which ones identify better frailty. Finally, this study provides a set of four parameters to classify a subject regarding the frailty status more accurately than the current 30-s CST outcome. This novel information could help clinicians to undertake the corresponding actions to prevent this syndrome.