| Ground reaction forces, bone characteristics, and tibial stress fracture in male runners. | |
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MedLine Citation:
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PMID: 10449008 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Tibial stress fracture is a common overuse running injury resulting from repetitive mechanical loading. This research project aimed to determine whether runners with a history of tibial stress fracture (TSF) differ in tibial bone geometry, tibial bone mass, and ground reaction force (GRF) parameters during running from those who have never sustained a stress fracture (NSF). METHODS: Forty-six male running athletes (23 TSF; 23 NSF) ranging in age from 18 to 42 yr were recruited for this cross-sectional study. A force platform was used to measure selected GRF parameters (peak and time to peak for vertical impact force, vertical active force, and horizontal braking force) during running at 4.0 m x s(-1). Tibial bone geometry (cross-sectional dimensions and area) was calculated from a computerized tomography (CT) scan at the junction of the middle and distal thirds. Dual energy x-ray absorptiometry (DXA) provided measurements of tibial bone area, bone mineral content (BMC), and bone mineral density (BMD). RESULTS: The TSF group had significantly smaller tibial cross-sectional area (P = 0.02) and DXA tibial bone area (P = 0.02), after adjusting for height and weight, than the NSF group. There were no significant differences between groups for GRF, tibial BMC, or tibial BMD. CONCLUSION: These findings support the contention that bone geometry plays a role in stress fracture development and that male athletes with smaller bones in relation to body size are at greater risk for this bony injury. |
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Authors:
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K Crossley; K L Bennell; T Wrigley; B W Oakes |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 31 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 1999 Aug |
Date Detail:
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Created Date: 1999-09-16 Completed Date: 1999-09-16 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1088-93 Citation Subset: IM; S |
Affiliation:
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School of Physiotherapy, The University of Melbourne, Parkville, Victoria, Australia. k.crossley@pgrad.unimelb.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Absorptiometry, Photon Adolescent Adult Biomechanics Bone Density Cross-Sectional Studies Fractures, Stress / physiopathology*, radiography Humans Male Running* / injuries, physiology Tibial Fractures / physiopathology*, radiography |
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