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Published in: Sport Sciences for Health 3/2018

01-12-2018 | Original Article

Photobiomodulation therapy is beneficial in reducing muscle fatigue in Brazilian jiu-jitsu athletes and physically active men

Authors: Bruno Follmer, Rodolfo Andre Dellagrana, Mateus Rossato, Raphael Luiz Sakugawa, Fernando Diefenthaeler

Published in: Sport Sciences for Health | Issue 3/2018

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Abstract

Introduction

Photobiomodulation therapy (PBMT) applied prior to exercise may provide ergogenic effects by delaying the onset of fatigue. The Brazilian jiu-jitsu (BJJ) is a domain combat sport in which elbow flexors’ isometric contraction is commonly performed.

Purpose

This study was aimed at investigating the effects of PBMT on torque parameters in groups of BJJ athletes (n = 10) and physically active men (n = 10).

Methods

The strength testing protocol was composed of elbow flexors’ maximal isometric voluntary contractions at 90°; treatment application (placebo or PBMT); fatigue protocol; and one elbow flexors’ maximal isometric voluntary contraction. Magnitude-based inference analyses were used to examine practical significance.

Results

BJJ athletes presented higher relative isometric peak torque values pre (ES = 0.92) and post (ES = 1.32) fatigue protocol than those observed in physically active men. Beneficial results were shown in the time to exhaustion (difference: 5.5 s, likely beneficial) and impulse during fatigue test (difference 271.1 N m s, possibly beneficial) for physically active men and in the impulse for BJJ athletes (difference 179.0 N m s, possibly beneficial) in favor of PBMT compared to placebo.

Conclusions

The PBMT was efficient in delaying the onset of fatigue regardless of the individuals’ training level and could be suggested as an ergogenic factor to improve muscle performance.
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Metadata
Title
Photobiomodulation therapy is beneficial in reducing muscle fatigue in Brazilian jiu-jitsu athletes and physically active men
Authors
Bruno Follmer
Rodolfo Andre Dellagrana
Mateus Rossato
Raphael Luiz Sakugawa
Fernando Diefenthaeler
Publication date
01-12-2018
Publisher
Springer Milan
Published in
Sport Sciences for Health / Issue 3/2018
Print ISSN: 1824-7490
Electronic ISSN: 1825-1234
DOI
https://doi.org/10.1007/s11332-018-0495-5

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