Do stiffness and asymmetries predict change of direction performance?
AffiliationUniversity of Bedfordshire
torsional spring model
C600 Sports Science
MetadataShow full item record
AbstractChange of direction speed (CODS) underpins performance in a wide range of sports but little is known about how stiffness and asymmetries affect CODS. Eighteen healthy males performed unilateral drop jumps to determine vertical, ankle, knee and hip stiffness, and a CODS test to evaluate left and right leg cutting performance during which ground reaction force data were sampled. A step-wise regression analysis was performed to ascertain the determinants of CODS time. A two-variable regression model explained 63% (R-2 = 0.63; P = 0.001) of CODS performance. The model included the mean vertical stiffness and jump height asymmetry determined during the drop jump. Faster athletes (n = 9) exhibited greater vertical stiffness (F = 12.40; P = 0.001) and less asymmetry in drop jump height (F = 6.02; P = 0.026) than slower athletes (n = 9); effect sizes were both "large" in magnitude. Results suggest that overall vertical stiffness and drop jump height asymmetry are the strongest predictors of CODS in a healthy, non-athletic population.
CitationMaloney SJ, Richards J, Nixon DGD, Harvey LJ, Fletcher IM (2016) 'Do stiffness and asymmetries predict change of direction performance?', Journal of Sports Sciences, 35 (6), pp.547-556.
PublisherTAYLOR & FRANCIS LTD
JournalJournal of Sports Sciences
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- Creative Commons
Except where otherwise noted, this item's license is described as Green - can archive pre-print and post-print or publisher's version/PDF
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