Low-load Resistance Exercise During Inactivity is Associated With Greater Fibre Area and Satellite Cell Expression in Older Skeletal Muscle

Age-related sarcopenia is accelerated by physical inactivity. Low-load resistance exercise (LLRE) counters inactivity-induced muscle atrophy in older adults, but changes in muscle fibre morphology are unstudied. The PURPOSE of this study was to determine the impact of LLRE during short-term inactivity (step-reduction) on muscle fibre size, satellite cell (SC) and capillarity content in older skeletal muscle. METHODS: Fourteen older (~71 years)...