Identification of movement strategies in vertical jumps
Richter, ChrisORCID: 0000-0001-6017-1520, Marshall, Brendan, O'Connor, Noel E.ORCID: 0000-0002-4033-9135 and Moran, KieranORCID: 0000-0003-2015-8967
(2014)
Identification of movement strategies in vertical jumps.
In: Symposium of the International Society of Biomechanics in Sports (ISBS 2014), 12-16 Jul 2014, Johnson City, TN..
The primary aim of this study is to compare the ability of three commonly used clustering techniques to identify movement strategies within countermovement jumps. A secondary aim is to interpret the identified movement strategies. A hierarchical, k-means using non- and normalized subject scores and an Expectation-Maximization approach using normalized subject scores were examined. The ability to identify movement strategies was measured using the r2-value of a regression model to describe jump height. Clusters of the best clustering solution were examined for differences. Hierarchical clustering utilizing normalized subject scores to generate 4 clusters appears to be the most suitable technique. The generated clusters demonstrated clear defining characteristics.
Metadata
Item Type:
Conference or Workshop Item (Paper)
Event Type:
Conference
Refereed:
Yes
Uncontrolled Keywords:
single group analysis; subgroup analysis; continuous data analysis; performance related factors; countermovement jump