Efeitos locais, distais, proximais e contralaterais do treinamento de baixa carga com restrição de fluxo sanguíneo no desempenho neuromuscular do membro superior de mulheres saudáveis: protocolo de ensaio controlado randomizado

Abstract

Low-load blood flow restriction (BFR) training may induce positive neuromuscular adaptations, but proximal BFR effects are unclear. This study aims to investigate chronic effects of low-load resistance training (LLRT) with BFR on upper extremity neuromuscular performance of healthy women. Methods: This protocol for clinical trial will include 78 volunteers randomized into three groups of 26 participants: LLRT (LLRT without BFR); LLRT + placebo blood flow restriction (20% BFR); and LLRT + 60% BFR. All groups will perform four sets of 15 repetitions at 20% of onerepetition maximum for each of the following muscles: serratus anterior, lateral shoulder rotators, and lower trapezius. Participants will be assessed before protocol, after completing eight weeks of protocol, and after a four-week follow-up. Primary outcome will be muscle strength, and secondary outcomes will be muscle excitation, perimetry, pain, subjective perceived exertion, affective valence with exercise, and power of upper extremity muscles. Ethics and dissemination: This project was approved by the local research ethics committee (no. 4.216.594) and data collection will initiate as soon as COVID-19 pandemic is controlled. Results will be published in a peer-reviewed journal and disseminated at scientific events, while research participants will receive a folder with results.