An example of mechanotherapy is:

• A. Massage
• B. Ultrasound
• C. Laser
• D. Tens unit

Answer: (A)

Mechanotherapy relies on applying mechanical forces to body tissues to influence healing and function. Massage fits this because it uses hands-on manipulation—pressing, kneading, rubbing, and sliding—to mechanically affect soft tissues. This kind of mechanical input can improve tissue mobility, reduce adhesions and muscle tension, enhance blood and lymphatic flow, and activate mechanoreceptors that help modulate pain and muscle guarding. In contrast, ultrasound and laser deliver energy forms other than mechanical pressure (sound energy causing heating and tissue effects; light energy for photobiomodulation), and a tens unit uses electrical stimulation rather than mechanical force. So massage is the example of mechanotherapy.