Fig. 1

Flow chart for subjects enrolled in this study. Note: CHARLS, China Health and Retirement Longitudinal Study; HS, handgrip; CTS, chair stand test; GS, gait speed; ASM/Ht2, height-adjusted muscle mass
Flow chart for subjects enrolled in this study. Note: CHARLS, China Health and Retirement Longitudinal Study; HS, handgrip; CTS, chair stand test; GS, gait speed; ASM/Ht2, height-adjusted muscle mass