Análise da função muscular periférica de idosas fisicamente ativas: correlações com a autonomia funcional

Abstract

Introduction: Despite the reduction in muscle performance is a major factor contributing to the reduction of functional capacity, there are little evidence on the relationship between both muscular fatigue and strength, and the functional autonomy of the elderly. The objective of this study was to evaluate the association between peripheral muscle function and functional independence of elderly women participating in a regular exercise program. Methods: In a cross-sectional study, 29 elderly participating in a regular exercise program were evaluated for muscle strength (MVIC- isometric quadriceps dynamometry), fatigue (analysis of the EMG signal during sustained isometric quadriceps contraction) and functional autonomy (GDLAM Protocol). Results: Significant associations were observed between height and MVIC (r = 0.49, p = 0.007), age and GDLAM (r = 0.65, p <0.001), and GDLAM and MVIC (r =- 0.39, p = 0.045). Conclusion: Lower limb muscle strength and age are associated with functional autonomy of elderly healthy women participants in a regular exercise program.