The production of infrared light is due to oscillatory or vibratory movements. The sun is the main source of infrared light, in fact it produces 59% of the solar emission, it belongs to these type of rays.
Infrared therapy is used in Physical Therapy to take advantage of the physiological effects of surface heat on human tissues and for the treatment of various health conditions.
Effects of infrared rays on the body: The effects are given by absorption and penetration capacity.
Increase in metabolism
Relaxation of the smooth muscles
Increase in membrane permeability
Generalized superficial vasodilation
Generalized sedation and relaxation
First: Uniform redness
Then: Reddish spots and white areas
Lastly: Uniform reddish coloration
After the sport
Congestion of blood and lymphatic circulation
Sprains in sub-acute or chronic stage