In a professional setting, the water temperature and agitation is varied depending on the treatment goal. Water temperature, coupled with agitation or vibration against the skin, can soothe and relax muscles. Warmer water induces vasodilation: drawing blood into the target tissues.
Increased blood flow delivers needed oxygen and nutrients, and removes cell wastes. The warmth decreases muscle spasm, relaxes tense muscles, relieves pain, and can increase range of motion. Cold-water therapy produces vaso constriction, which slows circulation, reducing inflammation, muscle spasm, and pain.