What is the primary effect of thermotherapy?

What is the primary effect of thermotherapy?

• A. It increases heart rate.
• B. It promotes muscle relaxation and decreases inflammation.
• C. It reduces blood flow.
• D. It dries the skin.

Answer: (B)

Thermotherapy works by warming tissues, which causes blood vessels to dilate and increases local blood flow. That boost in circulation helps relieve muscle tension by reducing reflex muscle guarding and spasm, and it softens connective tissue, improving elasticity and range of motion. The warmth also tends to ease pain and can help lessen inflammatory symptoms as swelling settles in subacute or chronic conditions, making relaxation and reduced stiffness a key benefit. Use heat appropriately—avoid applying to fresh injuries with swelling, areas with poor sensation, or over open wounds.

Thermotherapy works by warming tissues, which causes blood vessels to dilate and increases local blood flow. That boost in circulation helps relieve muscle tension by reducing reflex muscle guarding and spasm, and it softens connective tissue, improving elasticity and range of motion. The warmth also tends to ease pain and can help lessen inflammatory symptoms as swelling settles in subacute or chronic conditions, making relaxation and reduced stiffness a key benefit. Use heat appropriately—avoid applying to fresh injuries with swelling, areas with poor sensation, or over open wounds.