Influência da fase do ciclo menstrual no número máximo de repetições durante o exercício com restrição parcial de fluxo sanguíneo: protocolo de ensaio cruzado aleatorizado

Abstract

Partial blood flow restriction (PBFR) has become an ally with low load exercise (25% of 1 Maximum Repetition). However, it is noted that research with these techniques is scarce in eumenorrheic women. The aim of this study will be to evaluate the influence of the menstrual cycle phase (luteal or follicular) on the maximum number of repetitions of low load elbow flexion (25% of 1RM) associated with PBFR. This crossover trial protocol will include 16 participants randomized into two groups: Low Load Resistance Training (LLRT) and LLRT + PBFR (60% blood flow restriction). Both groups will perform four sets of repetitions to failure for the elbow flexion movement, using low-load resistance. Participants will be evaluated before starting the protocol and during the follicular and luteal phases of the menstrual cycle. The outcomes will be the number of repetitions, muscle strength, pain intensity, subjective perception of effort and exercise affectivity. This project was approved by the ethics committee of the Faculty of Health Sciences of Trairi, campus of the Federal University of Rio Grande do Norte (FACISA/UFRN) through opinion: nº 3,661,480. The research results will be disseminated through scientific conferences and published in scientific articles.