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- W274155457 abstract "Introduction Over the last two decades, female participation in sport has risen dramatically. Moreover, the rate of females acquiring injuries to their anterior cruciate ligament (ACL) has risen at an alarmingly dramatic rate. According to recent studies by Arendt (1995), females are between two to eight times more likely to injure their ACL than their male counterpart in similar sporting events. Typically, these injuries are occurring in sports such as basketball, volleyball and soccer. Participants in these sports are usually involved in a lot of quick cutting motions, jumping motions and rapid slowing or decelerating movements. ACL injuries generally prevent a student from participation throughout the remainder of the season, and some injuries can permanently end a student's ability to successfully participate (Rentrom, 2008). The Cost ACL injuries usually come at a very high cost to the participant and their family. The cost of the medical treatment alone can easily run thousands of dollars. Moreover, this type of injury can greatly reduce an athlete's self esteem and confidence. Therapy must also be considered, which places a high burden on family members with respect to the time lost and money spent. These losses combined, often make ACL injures catastrophic losses to athletes and their families. Causes With approximately 70% of ACL injuries coming from non-contact incidents, many studies have been conducted in order to find causes or preventative measures to counteract the problem. These studies have attempted to narrow the causes and help reduce the occurrence of ACL injuries in female athletes. Presently, research has narrowed its focus to a handful of probable causes. In female athletes, the factors include, but are not limited to: Increased valgus movements during landing, pre-menstrual hormone levels, narrower intercondylar notch width and smaller AC ligaments (Griffin, L. Y., 2000). Research has also noted different firing sequences of leg muscles in male and female athletes. These firing differences help explain some of the different responses that females exhibit to athletic movements and thereby expose themselves to higher risk during those movements. As a result, females find themselves at a biomechanical disadvantage to males when it comes to ACL strength and stability (Ireland, 2002). Prevention The good news is that studies have concluded that the incidence of ACL injuries can be reduced through neuromuscular training (Roniger, L. R., 2007). With this type of training, females have been shown to reduce valgus moments when landing (Foster, J. B., 2007). Moreover, as a result of the training, female athletes can incorporate more muscular control and experience less ligament dependence during movements such as cutting, landing, jumping and rapid deceleration. With appropriate training, which can and should be done in the physical education classroom, female athletes can significantly reduce their risk of a catastrophic non-contact ACL injury (Mandelbaum, 2005). Muscular training to reduce the risk of ACL injuries is not a difficult task. Furthermore, the training falls right into the Physical Education guidelines of helping individuals lead healthier and more satisfying lives. Certainly all of the muscles in the leg would benefit from strength training and stretching, however, this paper will focus on the larger muscles in the Hamstrings and Quadriceps. Most athletes have strong quads because of the amount of work that those muscles do during exercise. A study by Chappell, J., et.al. in 2007 concluded that females landed with less knee flexion, increased quadriceps activation and less hamstring activation. This resulted in increased ACL loading during the landing phase and therefore increased the risk of damage. With this in mind, greater hamstring strength should be a priority in most female athletes. The hamstrings, however, are often overlooked during training. …" @default.
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- W274155457 date "2009-06-22" @default.
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- W274155457 title "Prevention of ACL injuries in female athletes through early intervention." @default.
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