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

被引:26
作者
Brown, Susan J. [1 ]
Selbie, W. Scott [2 ]
Wallace, Eric S. [3 ]
机构
[1] Edinburgh Napier Univ, Sch Life Sport & Social Sci, Edinburgh EH11 4BN, Midlothian, Scotland
[2] C Mot Inc, Germantown, MD USA
[3] Univ Ulster, Sport & Exercise Sci Res Inst, Newtownabbey BT37 0QB, North Ireland
关键词
X-Factor; pelvis; thorax; methods; golf; DRIVING PERFORMANCE; MOVEMENT; ROTATION; PRO;
D O I
10.1080/02640414.2013.775474
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
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 twelve-camera 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.
引用
收藏
页码:1156 / 1163
页数:8
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