Which statement best describes thermotherapy in rehabilitation?

Which statement best describes thermotherapy in rehabilitation?

• A. It decreases blood flow to injured tissue.
• B. It increases blood flow and promotes healing when applied at the appropriate time.
• C. It cools tissue to reduce inflammation.
• D. It has no effect on pain or muscle guarding

Answer: (B)

Thermotherapy works by raising tissue temperature to influence healing and tissue properties. By warming tissue, it causes vasodilation and increased blood flow, which helps deliver nutrients and oxygen and aids in removing waste products. When used at the right stage of recovery—typically after the acute inflammatory phase—it supports healing and can reduce stiffness, since warmer tissues stretch more readily and tissues become more pliable. Heat also can help with pain and muscle guarding by relaxing muscles and modulating pain signals. However, in the immediate aftermath of injury, heat can worsen swelling, so cold therapy is preferred early on. Therefore, the best description is that thermotherapy increases blood flow and promotes healing when applied at the appropriate time.

Thermotherapy works by raising tissue temperature to influence healing and tissue properties. By warming tissue, it causes vasodilation and increased blood flow, which helps deliver nutrients and oxygen and aids in removing waste products. When used at the right stage of recovery—typically after the acute inflammatory phase—it supports healing and can reduce stiffness, since warmer tissues stretch more readily and tissues become more pliable. Heat also can help with pain and muscle guarding by relaxing muscles and modulating pain signals. However, in the immediate aftermath of injury, heat can worsen swelling, so cold therapy is preferred early on. Therefore, the best description is that thermotherapy increases blood flow and promotes healing when applied at the appropriate time.