What is the result of a strain?

A strain

- occurs when a muscle or tendon is overly stretched or torn.

- It is a common form of sports injury, and usually affects large muscles such as those of the back, leg and arm.

- Sprains occur when a joint is twisted, sprained, or damaged in some other way.

- Symptoms include pain when performing certain activities, muscle spasms, weakness and tenderness in the affected muscle.

- In serious cases, a strain can cause bruising and swelling.