Electrical therapy is used to:

Electrical therapy is used to:

• A. Decrease pain; increase blood flow, ROM, and muscle strength; reeducate muscle; facilitate absorption of drugs; promote wound healing.
• B. Only decrease pain.
• C. Only deliver heat to tissues.
• D. Only measure tissue impedance.

Answer: (A)

Electrical therapy uses controlled electrical currents to influence nerves and muscles, enabling several therapeutic effects. It can reduce pain by modulating sensory signals, and it helps reeducate and activate muscles through targeted, timed contractions that improve strength and range of motion. It also boosts local blood flow and tissue perfusion via muscle pumping and vasodilatory responses, which supports healing and can aid edema reduction. Some modalities can drive medications through the skin or toward tissues, facilitating local drug absorption. Taken together, these capabilities cover pain relief, improved ROM and muscle strength, motor reeducation, drug delivery, and wound healing. It isn’t limited to just heating tissues or only measuring impedance, which is why this broader use is described as the purpose of electrical therapy.

Electrical therapy uses controlled electrical currents to influence nerves and muscles, enabling several therapeutic effects. It can reduce pain by modulating sensory signals, and it helps reeducate and activate muscles through targeted, timed contractions that improve strength and range of motion. It also boosts local blood flow and tissue perfusion via muscle pumping and vasodilatory responses, which supports healing and can aid edema reduction. Some modalities can drive medications through the skin or toward tissues, facilitating local drug absorption. Taken together, these capabilities cover pain relief, improved ROM and muscle strength, motor reeducation, drug delivery, and wound healing. It isn’t limited to just heating tissues or only measuring impedance, which is why this broader use is described as the purpose of electrical therapy.