Efeito das diferentes fases do ciclo menstrual no desempenho da força muscular em 10RM

Abstract

The aim of this study was to investigate the effect of the different phases of the menstrual cycle (MC) on muscular strength performance in resistance exercises. Nine healthy and physically active women, aged 27±7 yrs, body mass 58.2±5 kg, height 161.1±4.7 cm and BMI 20.4±2 kg/m2 participated in the study. All of them had regular MCs (28-31 days), used oral contraceptives and had been experienced in resistance exercises for at least eight months. Muscle strength was evaluated with a 10RM test in the following order: leg press 45º, bench press, leg extension and biceps curl. The tests were performed in the three phases of the MC: follicular (between the 3rd and 5th day of menses), ovulatory (between 9th and 10th days) and luteal (between 17th and 21th days). ANOVA for repeated measures was applied for statistical analysis, data were analyzed in the SPSS 15.0 and level of significance was set at 5% (p<0.05). No significant statistical differences were observed in the mobilized weight between the MC periods in those four exercises. Regarding the leg press exercise, a 5% increment in muscle strength was observed on the luteal phase. In the remaining exercises and phases these differences were not observed. In conclusion, the phases of the MC did not affect performance of muscular strength in resistance exercise, both single and multiple joint, for large or small muscle groups or in different body segments.

Avaliação da Força Muscular de Diferentes Populações: Uma Revisão de Literatura

“…Alguns com grupo de estudo formado por jovens do sexo feminino 1,21,[23][24][25][26][27] , jovens do sexo masculino 19,28,29,30 , e outros por indivíduos idosos de ambos os sexos 5,7,[12][13][14][15][16]20,31,32 . Já outros estudos foram voltados para a população de indivíduos com patologias 2,6,8,33,34,35 e em pós-operatório 9,36 .…”

“…Já outros estudos foram voltados para a população de indivíduos com patologias 2,6,8,33,34,35 e em pós-operatório 9,36 . 18,27,28 . Quanto a frequência de avaliações, uma única avaliação foi a mais recorrente 2,3,4,6,8,9,[11][12][13][14]16,28,[30][31][32][33][34][35][36][37][38] .…”

“…Outro estudo 27 no qual foi realizada a avaliação da FM de outra maneira verificou o efeito das diferentes fases do ciclo menstrual (CM) no desempenho da FM em exercícios resistidos. O efeito das oscilações hormonais decorrentes do CM sobre o desempenho físico vem sendo bastante abordado, no entanto a literatura apresenta resultados controversos.…”

Effects of muscular endurance training on musculoskeletal disorders in teachers

“…The test was interrupted at the time the participants failed to perform the complete movement or when occurred concentric voluntary failures in 10RM (15). Before the execution, the teachers were informed about the assessment and training the longitudinal axis on the tibia of the individuals (16).…”

“…The priority was the correct execution of the movement and the force was obtained in kilograms (kg) (15).…”