Muscle strength to body weight ratio is a better predictor of low physical function than absolute muscle strength in postmenopausal women

  • Aletéia de Paula Souza
  • Fernanda Maria Martins
  • Marcelo Augusto da Silva Carneiro
  • Paulo Ricardo Prado Nunes
  • Erick Prado de Oliveira Federal University of Uberlandia
  • Fábio Lera Orsat Federal University of Triângulo Mineiro. Department of Sport Sciences

Resumo

Objective: We investigated the predictive contributions and diagnostic accuracy of muscle strength (MS) and muscle strength to body weight ratio (MS/BW) on physical function in postmenopausal women (PW). Methods: This cross-sectional study evaluated forty-nine sedentary PW (61.7 ± 7.9 years). Body weight and height were measured with a digital scale and a stadiometer respectively. Muscle strength was determined by manual dynamometer and the left and right hand values were summed. Physical function was assessed by the six-minute walk test, short physical performance battery (SPPB) and Quality of Life Questionnaire (SF-36). A composite measure of physical function was calculated by summing the Z scores (x-µ/σ) of each individual assessment to provide a global index of physical function. Results: Muscle strength-specific linear regression analyses indicated that the strongest predictor of physical function was MS/BW [Beta of Z score = 0.91±0.07 (SE)] when compared to MS [Beta of Z score = 0.59±0.13 (SE)]. The ROC curve values indicated that the more accurate measure of physical function (P = 0.026) was MS/BW [AUC = 0.91±0.04 (SE)] when compared to MS [AUC = 0.75±0.08 (SE)]. Conclusion: The findings of this study suggest that MS/ BW is more accurate and predictive measure of low physical function than absolute MS in PW

Downloads

Não há dados estatísticos.

Biografia do Autor

Aletéia de Paula Souza
Exercise Biology Research Group (BioEx)
Fernanda Maria Martins
Exercise Biology Research Group (BioEx)
Marcelo Augusto da Silva Carneiro
Exercise Biology Research Group (BioEx)
Paulo Ricardo Prado Nunes
Exercise Biology Research Group (BioEx)
Publicado
2016-12-29
Como Citar
1.
Souza A, Martins F, Carneiro MA, Nunes PR, Oliveira E, Orsat F. Muscle strength to body weight ratio is a better predictor of low physical function than absolute muscle strength in postmenopausal women. actafisiatrica [Internet]. 29dez.2016 [citado 24jul.2019];23(4):213-8. Available from: http://www.revistas.usp.br/actafisiatrica/article/view/137691
Seção
Artigo Original