In 2015, Brazilian researchers wanted to find out if light therapy could build muscle and enhance strength in 30 male athletes. The study compared one group of men who used light therapy + exercise with a group that did exercise only and a control group.
The exercise program was 8-weeks of knee extensor training.
Wavelength: 810nm Dose: 240J
The men that received light therapy before training “reached significantly higher percent changes” compared to the exercise only group “for sum of muscles’ thicknesses, isometric peak torque and eccentric peak torque.”
In fact, the muscle thickness and strength increases were more than 50% greater for those who used light therapy before exercise.