Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training

Effects of Low Level Laser Therapy (808nm) on Muscle Performance of Young Women Submitted to Physical Training

The study hypothesis is an increase in muscle performance and a higher aerobic adaptation of young women submitted to chronic endurance training program associated to low level laser therapy when compared to chronic aerobic training alone.

The study assessed women muscle performance in isokinetic dynamometry, ventilatory parameters such as ventilatory threshold, VO2Peak, VO2Max, Ventilation. Maximal load in cycle ergometer test (Balke's protocol), Borg Scale and Heart rate were assessed too.

Inclusion Criteria:

• healthy young women volunteers
• women with a beginner or moderately trained pattern of physical activity
• body Mass Index (BMI) between 18 and 25kg/m2

Exclusion Criteria:

• previous injury to the femoral quadriceps or hamstrings muscles (within 6 months prior to study)
• osseous or articular disorder in the lower limbs
• cardiovascular system disorders or systemic disease