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What are some risk factors for an anterior cruciate ligament (ACL) sprain?

Risk factors for ACL (anterior cruciate ligament) sprains can be broken down into two categories, extrinsic (factors outside the knee) and intrinsic (factors within the knee). Extrinsic factors include an athlete’s muscular strength, muscular endurance, coordination, shoe surface, wider pelvis to femoral length ratio, as well as being female. Studies conducted by the NCAA have found females to be up to six times more likely to suffer from ACL sprains. Intrinsic factors include overall looseness of the joint, small ACL, and excessive knee extension.

This answer provided for NATA by Loras College.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.