High knee abduction moments are common risk factors for patellofemoral pain (PFP) and anterior cruciate ligament (ACL) injury in girls
Both patellofemoral pain (PFP) and injuries to the anterior cruciate ligament (ACL) are the most common knee disorder and result in the greatest total time lost from sport respectively in young and highly active female athletes. An important step from a prophylactic viewpoint is to identify risk factors associated with PFP and ACL injury. The purpose of this study was to evaluate two prospective datasets with similar populations and methodologies with injury surveillance methods focused on incidence rates and risk factors for increased risk of PFP or ACL injury in female adolescents.
240 and 205 middle and high school female athletes composed the respective ‘PFP’ and ‘ACL cohorts.’ An increased external knee abduction moment when landing from a vertical jump was associated with an increased risk of injury in both groups. Furthermore, relative to the PFP group, the ACL-injured athletes initiated landing with a greater knee abduction angle and a reduced hamstrings-to-quadriceps strength ration.
Therefore, preseason screening may be beneficial in identifying deficits in proximal neuromuscular control that may render female adolescents at greater risk for PFP or ACL-injuries. > From: Myer et al., Br J Sports Med (2014) (Epub ahead of print). All rights reserved to BMJ Publishing Group Ltd.
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