Musculoskeletal Wednesday by Michel van Exsel, MSc: Next to the article summary below, youll find the Pubmed information and an interesting image at our website anatomy-physiotherapy/ Severe knee injury increases the risk of getting a hamstring strain injury (HSI). However whether the opposite, a previous HSI increases risk of ACL-injury, is true is not investigated yet. This article describes evidence to suggest that there could be a potential link between previous HSI and increase risk of ACL-injury. Optimal hamstring function protects the ACL by preventing excessive anterior translation of the tibia. Female athletes are more prone to ACL-injury. Compared to man, females show lower hamstring-to-quadriceps (H:Q) strength ratios, increased activation of the quadriceps compared to the hamstring during stop-jump landing and lower myoelectrical hamstring activity during a side-step. This may result in a higher risk of getting an ACL-injury. Athletes with a previous HSI also show alteration in hamstring function: lower eccentric knee flexor strength, lower H:Q ratios and lower myoelectrical activity during eccentric contraction. Whether these alterations after HSI results in a higher risk of getting an ACL-injury requires further investigation. > From: Opar et al., Arch Phys Med Rehabil (2013) (Epub ahead of print). All rights reserved to the American Congress of Rehabilitation Medicine.
Posted on: Wed, 30 Oct 2013 16:11:39 +0000
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