Archives of Gerontology and Geriatrics · Jun 14, 2021

Chair sit-to-stand performance is associated with diagnostic features of sarcopenia in older men and women

By Yoshiko A, Ogawa M, Shimizu K et al.

BACKGROUND: Standing from a chair is a fundamental activity of daily living, and it can be applied to assess the physical function, especially in older individuals. AIM: The aim of this study was to elucidate the characteristics of mechanical and temporal parameters during chair stand based on the relationship with skeletal muscle and physical functional parameters in older men and women. METHODS: Eighty older men and women participated in this study. We measured four parameters of chair stand performance: ground reaction force (GRF), rate of force development (RFD), and chair rise time (CRT) were calculated from the foot-floor force data; sit-to-stand (STS) was also assessed by measuring the time needed to complete 10 chair stand repetitions. The muscle thickness (MT) and echo intensity, as indexes of muscle size and quality, respectively, were measured using axial B-mode ultrasound images from quadriceps femoris. The gait speed and handgrip strength were measured as physical functional parameters. RESULTS: Partial correlation was used to determine the association of chair stand performance with MT, echo intensity, and physical parameters while considering the height, body mass, and age. GRF, RFD, and STS were significantly correlated with MT (r = 0.35, 0.26, and -0.49), gait speed (r = 0.32, 0.31, and -0.67), and handgrip strength (r = 0.57, 0.59, and -0.49). As the result of regression analysis, MT, gait speed, and handgrip strength were estimated by GRF and STS. CONCLUSION: These results suggest that chair stand performance is useful as it reflects the muscle size and physical functions in older individuals.

doi.org/10.1016/j.archger.2021.104463PubMed 34218157Biomarkers