What best defines a strain?

• A. A fracture of a bone.
• B. A sprain of a joint.
• C. A tear of the muscle or tendon from abnormal stretching.
• D. A dislocation of a bone.

Answer: (C)

A strain is an injury to muscle or its tendon that happens when the muscle is overstretched or overused, causing tearing of muscle fibers or tendon tissue. This differentiates it from other injuries: a fracture is a break in a bone, a sprain is damage to the ligaments around a joint, and a dislocation is when a bone is forced out of its joint. Strains commonly occur during activities that require sudden or forceful movements, like sprinting, heavy lifting, or rapid stretching, and they typically present with muscle pain, weakness, swelling, and limited movement. Treatment focuses on rest, gradual return to activity, and supportive care like ice and compression, depending on severity.