| Gait retraining to reduce lower extremity loading in runners. | |
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MedLine Citation:
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PMID: 20888675 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: tibial stress fractures, which are among the most common running related injuries, have been associated with increased lower extremity loading (i.e., peak positive acceleration of the tibia, vertical force impact peak, and average and instantaneous vertical force loading rates) during initial contact. This study was conducted to evaluate the efficacy of a gait retraining program designed to reduce this loading during running and to assess the short-term persistence of these reductions. METHODS: ten runners (six females and four males) with peak positive tibial acceleration greater than 8g, measured in an initial screening, participated in the retraining program. During the retraining sessions, subjects ran on a treadmill and received real-time visual feedback from an accelerometer attached to their distal tibias. Tibial acceleration and vertical ground reaction force data were collected from subjects during overground data collection sessions held pre-training, post-training, and at a 1-month follow-up. FINDINGS: peak positive acceleration of the tibia, vertical force impact peak, and average and instantaneous vertical force loading rates were all reduced immediately following the gait retraining. The decrease in tibial acceleration was nearly 50%. The reductions in vertical force loading rates and vertical force impact peak were approximately 30% and 20%, respectively. These reductions were maintained at the 1-month follow-up. INTERPRETATION: subjects were able to run with reduced tibial acceleration and vertical force loading immediately following completion of the gait retraining program and at the 1-month follow-up evaluation. This may reduce their risk of stress fractures. |
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Authors:
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Harrison Philip Crowell; Irene S Davis |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Clinical biomechanics (Bristol, Avon) Volume: 26 ISSN: 1879-1271 ISO Abbreviation: Clin Biomech (Bristol, Avon) Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-01-03 Completed Date: 2011-04-27 Revised Date: 2012-01-04 |
Medline Journal Info:
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Nlm Unique ID: 8611877 Medline TA: Clin Biomech (Bristol, Avon) Country: England |
Other Details:
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Languages: eng Pagination: 78-83 Citation Subset: IM |
Copyright Information:
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Published by Elsevier Ltd. |
Affiliation:
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US Army Research Laboratory-Human Research and Engineering Directorate, RDRL-HRS-B, Aberdeen Proving Ground, MD 21005-5425, USA. harrison.philip.crowell@us.army.mil |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acceleration Adult Biomechanics Female Fractures, Stress / prevention & control* Gait* Humans Male Retrospective Studies Running / injuries* Stress, Mechanical Tibia / injuries* Tibial Fractures / prevention & control Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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1-S10-RR022396/RR/NCRR NIH HHS; R01 HD050679-02/HD/NICHD NIH HHS; R01HD050679/HD/NICHD NIH HHS |
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