Study of Effects of Low Level Laser Therapy in the Physical Training and the Muscle Responses in Humans.

Phase 1. Muscle Genic Expression Under Strength Training and Photostimulated by Laser.

The hypothesis of this study is that a chronic program of physical strength

training, associates to effects of low level laser therapy (LLLT) can,

possibly, provide changes in genic expression of muscle and to promote an

enhancement of anaerobic muscle performance in humans.

Inclusion Criteria:

• healthy young male volunteers;
• non-athletic physical activity;
• Body Mass Index (BMI) under 26;
• no prescription medicine or dietary supplement use (such as muscle mass builders.

Exclusion Criteria:

• metabolic disease;
• joint, bone and muscles of lower limbs with any disease