Cryotherapy's effect on vascular and tissue response is best described as?

Cryotherapy's effect on vascular and tissue response is best described as?

• A. Increases metabolic rate.
• B. Causes blood vessels to constrict and skin muscles to contract.
• C. Promotes vasodilation.
• D. Heats tissue to increase healing.

Answer: (B)

Cryotherapy works by exposing tissue to cold, which triggers rapid constriction of peripheral blood vessels. This vasoconstriction reduces blood flow to the treated area, helping limit swelling and inflammation, and lowers tissue temperature and metabolic rate. Slower nerve conduction from the cooler tissue also contributes to pain relief. The idea that cold increases metabolic rate is incorrect (it decreases it). Vasodilation describes a heat response, not a cold response. Heating tissue to promote healing is the opposite approach of cryotherapy. The contraction of skin-associated muscles can occur with cold, but the central vascular effect you should remember is constriction of blood vessels.

Cryotherapy works by exposing tissue to cold, which triggers rapid constriction of peripheral blood vessels. This vasoconstriction reduces blood flow to the treated area, helping limit swelling and inflammation, and lowers tissue temperature and metabolic rate. Slower nerve conduction from the cooler tissue also contributes to pain relief. The idea that cold increases metabolic rate is incorrect (it decreases it). Vasodilation describes a heat response, not a cold response. Heating tissue to promote healing is the opposite approach of cryotherapy. The contraction of skin-associated muscles can occur with cold, but the central vascular effect you should remember is constriction of blood vessels.