Infrared Low-level Laser Therapy Before Intense Progressive Running Test of High-level Soccer Players

Photobiomodulation therapy (PBMT) has recently been used to alleviate postexercise muscle fatigue and enhance muscle recovery, demonstrating positive results. A previous study by the investigator's research group demonstrated the optimal dose and the optimal output power (100 mW) for an infrared wavelength (810 nm). However, the effects of optimized PBMT on performance and post-exercise recovery in high-level soccer players, to date have not been evaluated. The present research project aims to evaluate the effects of PBMT (using low-level laser therapy) applied before a progressive running test on functional, muscle damage, inflammatory and oxidative stress markers in high-level soccer players.