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Factors That Could Cause Anterior Cruciate Ligament Injury

789 words - 4 pages

Several studies suggest that there is a relationship between females and an increased risk for knee injuries when compare to their male counterparts. One of the more common injuries that studies seem to focus more of their attention on is Anterior Cruciate Ligament (ACL) injuries. Women seem to be more susceptible than men to these ACL injuries because of hormonal differences, structural differences, musculature differences, and mechanical differences (Hirst, Armeau & Parish, 2007). Large Q-angles and genu recurvatum are more common in women than they are in men (Devan et. al., 2004). These structural and biomechanical differences could create added stress on the knee which could lead to an ...view middle of the document...

Joint laxity is a big contributor to joint proprioception (Rozzi, Lephart & Fu, 1999). Joint proprioception is a risk factor for damaging forces which can cause injury (Rozzi, Lephart & Fu, 1999).

The purpose of this study was to determine if females have a larger Q-angle as well as a larger ligamentous laxity when compared to the male counterpart. Both Q-angle and ligamentous laxity have been directly linked to knee-injuries. I hypothesize that the females will have a greater Q-angle as well as a greater ligamentous laxity scpore thus increasing their risk for knee injury.

Methods: Fifteen graduate students in the EXS 525: Biomechanics class participated in the data collection. There were eight females and seven males who participated. Students were broken up into groups to collect different data on each other. The data that was collected was: gender, age (years), height (meters), weight (kilograms), body mass index (kilograms/meters2), ligamentous laxity score, distance from the Anterior Superior Iliac Spine (ASIS) to the medial malleolus (right and left side), distance from the umbilicus to the medial malleolus, Q-angle, leg and heel valgus, Chippaux-Smirak Index (CSI) on both the right and left side, Arch Index (AI) on both the right and left side, and Clarke’s Angle (CA) on both the right and left side.

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