Age-related decline in skeletal muscle mass and function among elderly men and women in Shanghai, China: a cross sectional study.

Objective: To investigate the relationship of muscle mass and muscle function with age.

Methods And Study Design: The study including 415 participants (aged 60-99 years). Upper (UMM) and lower (LMM) limbs muscle mass and whole body fat free mass (FFM) were measured by bioelectrical impedance analysis.