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Is increased residual shank length a competitive advantage for elite transtibial amputee long jumpers?
MedLine Citation:
PMID:  21725118     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
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.
Authors:
Lee Nolan; Benjamin L Patritti; Laura Stana; Sean M Tweedy
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Adapted physical activity quarterly : APAQ     Volume:  28     ISSN:  1543-2777     ISO Abbreviation:  Adapt Phys Activ Q     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-07-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8701671     Medline TA:  Adapt Phys Activ Q     Country:  United States    
Other Details:
Languages:  eng     Pagination:  267-76     Citation Subset:  IM    
Affiliation:
Laboratory for Biomechanics and Motor Control, Karolinska Institutet and the Swedish School of Sport and Health Sciences, GIH, Stockholm, Sweden, and the Department of Rehabilitation at Jönköping University, Jönköping, Sweden.
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