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Muscle Structure Around Knee Increases ACL Injury Risk In Females.(anterior cruciate ligament )
2001 MAR 22 - (NewsRx.com & NewsRx.net) -- Knee injuries are a common hazard for athletes - especially those who play basketball, volleyball, soccer, or other sports where knees are subjected to turning, twisting, and jerking.
But a University of Michigan Health System study, presented on February 28, 2001, at the annual meeting of the American Academy of Orthopaedic Surgeons, shows that female athletes may be at an even greater risk for a certain type of knee injury than their male counterparts due to the differences in the muscle structure around the knee.
"Knee muscles are capable of protecting ligaments and preventing injury," says Edward M. Wojtys MD, professor of orthopaedic surgery, U-M Medical School, and director of Sports Medicine at UMHS. "Female athletes are two to eight times more likely to tear their anterior cruciate ligament because they may not able to achieve the same muscle stiffness across the knee joint."
Wojtys calls the U-M study "one piece of the puzzle" in determining the differences between female and male athletes and, consequently, providing for the training and conditioning needs of female athletes in a safe and effective way.
Injury to the anterior cruciate ligament (ACL) - the ligament behind the kneecap that connects the thigh bone to the shin bone and is responsible for knee stability - is common in athletes. The UM study measured the muscle protection, or rotational knee stiffness, present in size- and sport-matched young males and females, to determine if females are more susceptible to anterior cruciate ligament injury. In addition to gender differences, the study looked at whether the types of sports the athletes played made a difference in knee stiffness.
In the study, researchers examined 24 NCAA Division I athletes - 12 males and 12 females - who compete in basketball, volleyball, and soccer. All three are "pivot" sports that, because of turning, twisting, and jerking, put players at high risk for injury to the anterior cruciate ligament. Another 28 collegiate athletes - 14 males and 14 females - who participated in the "non-pivot" sports of cycling, running, and crew ...
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Source: HighBeam Research, Muscle Structure Around Knee Increases ACL Injury Risk In...