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Is increased residual shank length a competitive advantage for elite transtibial amputee long jumpers?
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Laboratory for Biomechanics and Motor Control.
Harvard Medical School.
University of Queensland.
University of Queensland.
2011 (English)In: Adapted Physical Activity Quarterly, ISSN 0736-5829, Vol. 28, 267-276 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of this study was to evaluate the extent to which residual shank length affects long jump performance of elite athletes with a unilateral transtibial amputation. Sixteen elite, male, long jumpers with a transtibial amputation were videoed while competing in major championships (World Championships 1998, 2002 and Paralympic Games, 2004). The approach, take-off, and landing of each athlete's best jump was digitized to determine residual and intact shank lengths, jump distance, and horizontal and vertical velocity of center of mass at touchdown. Residual shank length ranged from 15 cm to 38 cm. There were weak, nonsignificant relationships between residual shank length and (a) distance jumped (r = 0.30), (b) horizontal velocity (r = 0.31), and vertical velocity (r = 0.05). Based on these results, residual shank length is not an important determinant of long jump performance, and it is therefore appropriate that all long jumpers with transtibial amputation compete in the same class. The relationship between residual shank length and key performance variables was stronger among athletes that jumped off their prosthetic leg (N = 5), and although this result must be interpreted cautiously, it indicates the need for further research.

Place, publisher, year, edition, pages
2011. Vol. 28, 267-276 p.
National Category
Sport and Fitness Sciences
Research subject
Medicine/Technology
Identifiers
URN: urn:nbn:se:gih:diva-2085PubMedID: 21725118OAI: oai:DiVA.org:gih-2085DiVA: diva2:474417
Available from: 2012-01-09 Created: 2012-01-09 Last updated: 2012-01-09Bibliographically approved

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