The importance of Wrist Flexion and X-Factor in the Golf Swing :A Forward Kinematic Approach

Conference item


Sweeney, Matthew, Mills, Peter, Alderson, Jacqueline and Elliott, Bruce. (2011) The importance of Wrist Flexion and X-Factor in the Golf Swing :A Forward Kinematic Approach. In J. Boas, L. Machado and W. Kim & A. P. Veloso (Ed.). 29 International Conference on Biomechanics in Sports. Portugal: University of Porto. pp. 945 - 958
AuthorsSweeney, Matthew, Mills, Peter, Alderson, Jacqueline and Elliott, Bruce
Abstract

This study aimed to investigate the importance of wrist flexion and trunk rotation relative to the pelvis about a vertical axis (X-factor) in the golf swing, through the use of kinematic simulation. Empirical data of 5 highly skilled golfers were collected using a 3D optoreflective system. A full body, 3D forward kinematic model was created that predicted the endpoint of the club to within 0.02 mm of the empirical data. X-factor rotation, then flexion of the wrist was locked at zero degrees throughout the downswing, with the effect on the kinematics of the club-head analysed. The results indicated that effective extension/flexion at the wrist is of great importance to performance with an average reduction of club-head velocity at impact of 46%, when wrist flexion is restricted during the downswing. Effective rotation of the trunk was also important to performance variables.

KeywordsComputer modelling; golf drive; performance
Year2011
PublisherUniversity of Porto
Web address (URL)https://ojs.ub.uni-konstanz.de/cpa/article/view/4991
Open accessOpen access
Publisher's version
Page range945 - 958
Research GroupSports Performance, Recovery, Injury and New Technologies (SPRINT) Research Centre
Place of publicationPortugal
EditorsJ. Boas, L. Machado and W. Kim & A. P. Veloso
Permalink -

https://acuresearchbank.acu.edu.au/item/892yx/the-importance-of-wrist-flexion-and-x-factor-in-the-golf-swing-a-forward-kinematic-approach

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