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Sports Injury Guide: The Common Types of Sports Injuries

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Updated June 10, 2014

3 of 10

Part 3 of 10 - Bruises, Sprains and Strains

Muscle Contusions

A bruise, or muscle contusion, can result from a fall or from contact with a hard surface, a piece of equipment, or another player while participating in sports. A bruise results when muscle fiber and connective tissue are crushed; torn blood vessels may cause a bluish appearance. Most bruises are minor, but some can cause more extensive damage and complications.

Sprains

A sprain is a stretch or tear of a ligament, the band of connective tissues that joins the end of one bone with another. Sprains are caused by trauma such as a fall or blow to the body that knocks a joint out of position and, in the worst case, ruptures the supporting ligaments. Sprains can range from first degree (minimally stretched ligament) to third degree (a complete tear). Areas of the body most vulnerable to sprains are:

Signs of a sprain include varying degrees of tenderness or pain; bruising; inflammation; swelling; inability to move a limb or joint; or joint looseness, laxity, or instability.

  • Ankle Sprain: Series
  • Strains

    A strain is a twist, pull, or tear of a muscle or tendon, a cord of tissue connecting muscle to bone. It is an acute, noncontact injury that results from overstretching or overcontraction. Symptoms of a strain include:

    • pain
    • muscle spasm
    • loss of strength

    While it's hard to tell the difference between mild and moderate strains, severe strains not treated professionally can cause damage and loss of function.

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