Resistance training improves capacity to delay neuromuscular fatigue in older adults

Arch Gerontol Geriatr. 2015 Jul-Aug;61(1):27-32. doi: 10.1016/j.archger.2015.04.002. Epub 2015 Apr 23.

Abstract

The purpose of this study was to investigate the effects of short term resistance exercise on neuromuscular fatigue threshold (PWCFT), strength, functional performance, and body composition in older adults. Twenty-three participants (71.2 ± 6.0 yr) were randomly assigned to 6 weeks of resistance exercise (EXE) or control (CONT). A submaximal cycle ergometer test, physical working capacity at fatigue threshold, was used to determine PWCFT. Strength was assessed with predicted leg extension 1-RM and functional performance with time to complete 5 chair rises (CHAIR) and walk an 8-ft course (WALK). PWCFT, 1-RM and CHAIR significantly (p<0.05) improved in the EXE (27%, 24%, 27%) compared with CONT (-0.1%, 7%, 6%), respectively. The results of this study suggest that short term EXE improved strength, functionality and the capacity to delay the onset of neuromuscular fatigue in older adults.

Keywords: Aging; Functionality; Neuromuscular fatigue; Resistance exercise; Strength.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aging*
  • Body Composition
  • Electromyography
  • Exercise Test
  • Exercise Tolerance / physiology*
  • Fatigue / physiopathology
  • Fatigue / prevention & control*
  • Female
  • Humans
  • Male
  • Muscle, Skeletal / physiopathology*
  • Resistance Training / methods*
  • Walking / physiology*