Efeitos de diferentes volumes de treinamento combinado nas adaptações neuromusculares, cardiorrespiratórias, de percepção de fadiga e de qualidade de vida de mulheres que finalizaram o tratamento primário de câncer de mama

Abstract

The goal of the present dissertation was to investigate the effects of different volumes of strength training within the combined training on the maximum strength of knee extensors, muscle thickness of knee extensors, peak oxygen uptake, cancer-related fatigue and quality of life of breast cancer survivors. Nineteen women were randomized in two groups: single set (SS; n = 10) or multiple sets (MS; n = 9). The participants trained twice a week during eight weeks, performing strength and aerobic training in the same session. The maximum dynamic strength of knee extensors and total fatigue related to cancer are primary outcomes. Generalized Estimating Equations and Bonferroni post-hoc (α = 0,05) tests were utilized. Both groups similarly increased the values for knee extension strength (SS: 29.81 ± 37.54%; MS: 19.33 ± 11.81%) and quadriceps muscle thickness (SS: 9.40 ± 4.14%; MS: 8.92 ± 5.94%) from pre- to post-intervention. For peak oxygen uptake there was no alteration in both groups after the eight-week period. Only the MS group reduced total fatigue perception (-2.05 ± 1.67 points). However, the same did not occur to he SS group. There was a similar quality of life improvement from preto post-intervention on the SS and MS groups (4.32 ± 6.33% and 7.87 ± 8.98% respectively). In this pilot study, a short period of combined training, regardless of the strength training volume, promoted important benefits to neuromuscular and quality of life outcomes for sedentary breast cancer survivors.