Journal article
Changing sidestep cutting technique reduces knee valgus loading
The American Journal of Sports Medicine, Vol.37(11), pp.2194-2200
2009
Abstract
Background: Common lower limb postures have been found when noncontact anterior cruciate ligament (ACL) injuries occur during sidestep cutting tasks. These same postures have been linked to knee loadings known to stress the ACL. Hypothesis: Whole body technique modification would reduce knee loading. Study Design: Controlled laboratory study. Methods: Experienced team sport athletes were recruited for whole body sidestep cutting technique modification. Before and after a 6-week technique modification training, participants performed sidestep cutting tasks while ground-reaction force and motion data were collected. A kinematic and inverse dynamics model was used to calculate 3-dimensional knee loading during sidestep cutting. Results: At initial foot contact, the participants placed their stance foot closer to the body's midline and held their torso more upright, in line with the aims of the technique modification training. This was accompanied by significantly lower peak valgus moments in the weight acceptance phase of stance. Both postural changes were correlated with the change in peak valgus moment. Conclusion: Whole body sidestep cutting technique modification resulted in reduced knee loading. Clinical Relevance: Implementation of whole body technique modification may produce effective ACL injury prevention programs in sports involving sidestep cutting.
Details
- Title
- Changing sidestep cutting technique reduces knee valgus loading
- Authors/Creators
- A.R. Dempsey (Author/Creator)D.G. Lloyd (Author/Creator)B.C. Elliott (Author/Creator)J.R. Steele (Author/Creator)B.J. Munro (Author/Creator)
- Publication Details
- The American Journal of Sports Medicine, Vol.37(11), pp.2194-2200
- Publisher
- SAGE Publications Inc.
- Identifiers
- 991005543833307891
- Copyright
- The authors
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.34 Orthopedics
- 1.34.440 Anterior Cruciate Ligament
- Web Of Science research areas
- Orthopedics
- Sport Sciences
- ESI research areas
- Clinical Medicine