Comparative effects of light or heavy resistance power training for improving lower extremity power and physical performance in mobility-limited older adults.

ABSTRACT:

Background

We compared the effects of two uniquely different lower extremity power training interventions on changes in muscle power, physical performance, neuromuscular activation, and muscle cross sectional area in mobility-limited older adults.

Methods

Fifty-two subjects (78±5 years, short physical performance battery score: 8.1±1) were randomized to either 16 weeks of progressive high velocity resistance training performed at low external resistance (40% of the 1-repetition maximum [1-RM] [LO]) or high external resistance (70% of 1RM [HI]). Both groups completed three sets of leg and knee extension exercises at maximum voluntary velocity, two times per week. Neuromuscular activation was assessed using surface electromyography and muscle cross sectional area (CSA) was mea

SUBMITTER: Reid KF 

PROVIDER: S-EPMC4351393 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature