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The X-Factor: An evaluation of common methods used to analyse major inter-segment kinematics during the golf swing

Brown, Susan J., Selbie, W. Scott and Wallace, Eric S. (2013) The X-Factor: An evaluation of common methods used to analyse major inter-segment kinematics during the golf swing. Journal of Sports Sciences . [Journal article]

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URL: http://dx.doi.org/10.1080/02640414.2013.775474

DOI: 10.1080/02640414.2013.775474

Abstract

A common biomechanical feature of a golf swing, described in various ways in the literature, is the interaction between the thorax and pelvis, often termed the X-Factor. There is no consistent method used within golf biomechanics literature however to calculate these segment interactions. The purpose of this study was to examine X-factor data calculated using three reported methods in order to determine the similarity or otherwise of the data calculated using each method. A twelvecamera three-dimensional motion capture system was used to capture the driver swings of 19 participants and a subject specific three-dimensional biomechanical model was created with the position and orientation of each model estimated using a global optimisation algorithm. Comparison of the X-Factor methods showed significant differences for events during the swing (P < 0.05). Data for each kinematic measure were derived as a times series for all three methods and regression analysis of these data showed that whilst one method could be successfully mapped to another, the mappings between methods are subject dependent (P <0.05). Findings suggest that a consistent methodology considering the X-Factor from a joint angle approach is most insightful in describing a golf swing.

Item Type:Journal article
Keywords:X-Factor, pelvis, thorax, methods, golf
Faculties and Schools:Faculty of Life and Health Sciences > School of Sport
Faculty of Life and Health Sciences
Research Institutes and Groups:Sport and Exercise Sciences Research Institute
Sport and Exercise Sciences Research Institute > Centre for Sports Science and Sports Medicine
ID Code:25279
Deposited By: Miss Fiona McAuley
Deposited On:26 Mar 2013 14:25
Last Modified:26 Mar 2013 14:25

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