Phototherapy effect on the muscular activity of regular physical activity practitioners

Clinical investigations have demonstrated the effectiveness of phototherapy on the muscle activity. The aim of this study was to investigate the effect of low-level laser therapy (LLLT) on the tibialis anterior muscle of regular physical activity practitioners by electromyographic, biomechanical, and biochemical (lactate) analysis. Double-blind controlled clinical trials were conducted with 12 healthy females, regular physical activity practitioners, between 18 and 30 years. The LLLT application (780 nm, 30 mW, 0.81 J/point, beam area of 0.2 cm 2 , 27 s, ≈29 points) in the tibialis anterior muscle occurred after the delimitation of the points on every 4 cm 2 was held. It was observed that (a) a significant torque increase ( p