Acute Photobiomodulation Does Not Influence Specific High-Intensity and Intermittent Performance in Female Futsal Players.

Izabela Aparecida Dos Santos,Alessandro Moura Zagatto,Marina De Paiva Lemos,Vitória Helena Maciel Coelho,Octávio Barbosa Neto,Gustavo R Mota,Moacir Marocolo,Rogério Nogueira Soares

doi:10.3390/ijerph17197253

Abstract

The acute improvement of performance after photobiomodulation therapy (PBMT) has been reported in different types of exercise. However, the effect on high-intensity and intermittent exercises that are relevant for team sports is unknown. Thus, we evaluated the effect of prior acute application of PBMT on high-intensity and intermittent exercise performance, muscle oxygenation, and physiological/perceptual indicators in amateur female futsal players. Thirteen players (24.1 ± 3.7 years) performed a testing battery (countermovement jump (CMJ), Illinois agility and YoYo intermittent recovery test level 1 (YYIR1)) preceded by 15 min of PBMT (1 min 30 s each muscular point; five muscular points in each lower limbs) or 15 min of placebo (SHAM), in a counterbalanced randomized cross-over design (one-week in-between PBMT/SHAM). All test performance did not differ (p > 0.05) between PBMT and SHAM, as well as blood lactate, rating of perceived exertion, heart rate, and muscle oxygenation (via near infrared spectroscopy) responses. The acute application of PBMT prior to a physical testing battery does not influence high-intensity and intermittent exercises performance, neither physiological nor perceptual responses in amateur female futsal players.

Highlights

Photobiomodulation therapy (PBMT) using low level laser in clinical experiments has demonstrated relevance for wound healing by increasing collagen synthesis, and the improvement of neovascularization and angiogenesis [1]
We hypothesized that acute photobiomodulation therapy (PBMT) application would improve the performance in a physical testing battery involving high-intensity intermittent exercise, changes in direction, acceleration, and deceleration
Even considering the individual responses through smallest worthwhile change (SWC), which may be relevant in studies evaluating ergogenic aids [32], our results show no differences between PBMT and placebo (Figure 2)

Summary

Introduction

Photobiomodulation therapy (PBMT) using low level laser in clinical experiments has demonstrated relevance for wound healing (acute and chronic) by increasing collagen synthesis, and the improvement of neovascularization and angiogenesis [1]. Public Health 2020, 17, 7253; doi:10.3390/ijerph17197253 www.mdpi.com/journal/ijerph

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