The effect of medial wedge inserts on knee adduction moments during a cutting movement


Elvidge, T. and Preatoni, E., 2016. The effect of medial wedge inserts on knee adduction moments during a cutting movement. In: 2016 Annual Meeting of the Southeast Chapter of the American College of Sports Medicine (SEACSM), 2016-02-18, South Carolina (USA).

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PURPOSE: To assess whether using medial wedge inserts in footwear (MWF) could reduce biomechanical variables associated with noncontact anterior cruciate ligament (ACL) injuries focusing primarily on knee adduction moments (KAM). METHODS: Nine female university students completed four sidestep cuts in three different footwear conditions (neutral, 3.5 degree medial wedge, and 5 degree medial wedge). Wedge conditions were created using ultra-high density EVA material Podowedge inserts (A. Algeo Ltd., Liverpool, England), creating a wedge on the medial aspect of the shoe from the heel to the 1st metatarsal-phalangeal joint. Ground reaction forces and 3D lower limb kinematics were recorded. RESULTS: Peak external KAM during the stance phase was lower in the 5 degree wedge condition (74.66 ± 28.35 N·m) compared to the neutral condition (83.10 ± 26.66 N·m). However, despite a small to medium effect size (ES = 0.32), this difference was nonsignificant (p = 0.065). There was no effect for the 3.5 degree wedge (ES = 0.00). CONCLUSIONS: Using a large degree medial wedge inserts was able to elicit a small effect in reducing KAM suggesting MWF could potentially reduce the risk of an ACL injury but future research is warranted.


Item Type Conference or Workshop Items (Poster)
CreatorsElvidge, T.and Preatoni, E.
DepartmentsFaculty of Humanities & Social Sciences > Health
ID Code49007


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