A idade é uma preditora do declínio da força e potência relativa dos membros inferiores de mulheres na pós-menopausa

Abstract

Postmenopause results in musculoskeletal health resulting in decreased muscle strength and relative potency. To analyze whether chronological age is able to predict the decline in physical performance relative to the strength, relative potency and level of physical activity of postmenopausal women. Observational study of a cross-sectional nature with a sample consisting of 132 postmenopausal women (MPM) between the ages 60.6 ± 7.92, stature 1.59 ± 0.05 and BMI 27.9 ± 5.45. For the assessment of physical activity level (NAF), the International Physical Activity Questionnaire (IPAQ) was used, a long version. Physical performance was evaluated through functional tests: Timed Up and Go (TUG), Lift and Sit 30 seconds (STS-30s), Speed 10 Meters Fast (VM10mR), Speed 400 Meters Fast (VM400mR) and Maximum Volunteer Isometric Contraction (CIVM). In addition, anthropometry and body composition were also evaluated. To verify the association between the variables investigated, the Pearson Linear Regression was used, in which four regression models were constructed. It was shown that age presented an association with all VM and TUG tests. However, when associated with the STS-30s test, there was no significant association in models 1 (p = 0.133), 2 (p = 0.583) and 3 (p = 0.758), with an association only in model 4 (p = 0.037) when adjusted by the relative STS. Thus, age was a predictor of accelerated VM decline, agility and dynamic balance, regardless of adjustment (NAF, CIVM, and relative STS). However, it seems that age alone was not a predictor of the STS-30s test.