The Impact of Step Reduction on Muscle Health in Aging: Protein and Exercise as Countermeasures

Declines in strength and muscle function with age-sarcopenia-contribute to a variety of negative outcomes including an increased risk of: falls, fractures, hospitalization, and reduced mobility in older persons. Population-based estimates of the loss of muscle after age 60 show a loss of ~1% per year while strength loss is more rapid at ~3% per year. These rates are not, however, linear as periodic bouts of reduced physical activity and muscle …