Do stiffness and asymmetries predict change of direction performance?

2.50
Hdl Handle:
http://hdl.handle.net/10547/622079
Title:
Do stiffness and asymmetries predict change of direction performance?
Authors:
Maloney, Sean J.; Richards, Joanna; Nixon, Daniel G.D.; Harvey, Lewis J.; Fletcher, Iain M.
Abstract:
Change 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.
Affiliation:
University of Bedfordshire
Citation:
Maloney 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.
Publisher:
TAYLOR & FRANCIS LTD
Journal:
Journal of Sports Sciences
Issue Date:
30-Apr-2016
URI:
http://hdl.handle.net/10547/622079
DOI:
10.1080/02640414.2016.1179775
Additional Links:
http://www.tandfonline.com/doi/abs/10.1080/02640414.2016.1179775?journalCode=rjsp20
Type:
Article
Language:
en
ISSN:
0264-0414
Appears in Collections:
Sport and physical activity

Full metadata record

DC FieldValue Language
dc.contributor.authorMaloney, Sean J.en
dc.contributor.authorRichards, Joannaen
dc.contributor.authorNixon, Daniel G.D.en
dc.contributor.authorHarvey, Lewis J.en
dc.contributor.authorFletcher, Iain M.en
dc.date.accessioned2017-04-11T14:08:39Z-
dc.date.available2017-04-11T14:08:39Z-
dc.date.issued2016-04-30-
dc.identifier.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.en
dc.identifier.issn0264-0414-
dc.identifier.doi10.1080/02640414.2016.1179775-
dc.identifier.urihttp://hdl.handle.net/10547/622079-
dc.description.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.en
dc.language.isoenen
dc.publisherTAYLOR & FRANCIS LTDen
dc.relation.urlhttp://www.tandfonline.com/doi/abs/10.1080/02640414.2016.1179775?journalCode=rjsp20en
dc.rightsGreen - can archive pre-print and post-print or publisher's version/PDF-
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectcuttingen
dc.subjectagilityen
dc.subjectleg-spring behaviouren
dc.subjectspring-mass modelen
dc.subjecttorsional spring modelen
dc.subjectC600 Sports Scienceen
dc.titleDo stiffness and asymmetries predict change of direction performance?en
dc.typeArticleen
dc.contributor.departmentUniversity of Bedfordshireen
dc.identifier.journalJournal of Sports Sciencesen
dc.date.updated2017-04-11T13:47:41Z-
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