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    Anterior Cruciate Ligament (ACL) Injuries

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    What Increases Your Risk

    Things that increase your risk of anterior cruciate ligament (ACL) injuries include:

    • Playing sports that involve sudden changes in direction or cutting around other players or obstacles, such as skiing, football, soccer, basketball, baseball, and tennis.
    • Making accidental movements that may twist your knee. Examples include falling off a ladder, jumping from an extreme height, stepping into a hole, or missing a step on a staircase.
    • Losing muscle tone in legs (from aging or inactivity).
    • Having unbalanced leg muscle strength, such as if the muscles in the front of your thigh (quadriceps) are stronger than the muscles at the back of your thigh (hamstrings).
    • Previous ACL injuries, especially if your knee sometimes gives out or buckles (chronic ACL deficiency).

    Women have more ACL injuries than men.1

    1

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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