Photobiomodulation Therapy Combined With Static Magnetic Field on the Subsequent Performance

Skeletal Muscle Performance Clinical Trial

Official title: Immediate Effects of Photobiomodulation Therapy Combined With Static Magnetic Field on the Subsequent Performance: a Randomized Crossover Triple-blinded Placebo-controlled Trial

Status Completed

Clinical Trial Summary

There is evidence about the effects of photobiomodulation therapy (PBMT) alone and combined with static magnetic field (PBMT-sMF) on skeletal muscle fatigue, physical performance and post-exercise recovery in different types of exercise protocols and sports activity. However, it is unknown the effects of PBMT-sMF to improve the subsequent performance after a first set of exercise. Therefore, the aim of this study was to investigate the effects of PBMT-sMF, applied between two sets of exercises, on the subsequent physical performance.

Clinical Trial Description

A randomized, crossover, triple-blinded (assessors, therapist and volunteers), placebo-controlled trial was carried out. Healthy non-athletes' male volunteers were randomized and treated with a single application of PBMT-sMF and placebo between two sets of an exercise protocol performed on isokinetic dynamometer.

The order of interventions was randomized.

The primary outcome was fatigue index, measured by isokinetic dynamometer during the exercise protocol. The secondary outcomes were total work and peak torque measured by isokinetic dynamometer during the exercise protocol; and blood lactate, measured by blood samples collected before, 3 minutes after the first set of the exercise protocol, 3 minutes after the application of the intervention and 3 minutes after the second set of the exercise protocol.

Statistical analysis:

The findings were tested for normality using the Kolmogorov-Smirnov test and were determined to have a normal distribution. Data were expressed as the mean and standard deviation, and a two-way repeated measures ANOVA was performed to test between-group differences at each timepoint (treatment effects), mean difference (MD) and 95% confidence intervals (CI), followed by the Bonferroni post hoc test. The significance level was set at p < 0.05. ;

Related Conditions & MeSH terms

• Skeletal Muscle Performance

• NCT number: NCT04934709
• Study type: Interventional
• Source: University of Nove de Julho
• Status: Completed
• Phase: N/A
• Start date: May 2015
• Completion date: September 2015