What prolonged effect does cold therapy have compared to heat therapy?

Cold therapy is known for its ability to reduce swelling, particularly following acute injuries. The prolonged effect of cold therapy stems from its capacity to constrict blood vessels, which decreases blood flow to the injured area. This vasoconstriction helps to limit the accumulation of fluid and reduces the inflammatory response, leading to less swelling over time.

In contrast, while heat therapy may promote increased blood flow and facilitate the healing process in certain contexts, it does not maintain the same prolonged anti-inflammatory effects as cold therapy. Heat tends to increase the metabolic rate and can promote swelling due to vasodilation. Therefore, the advantage of cold therapy in prolonging the reduction of swelling can be particularly beneficial in managing conditions like sprains or strains where inflammation is a significant issue.