Analysis of selected kinematic and physiological performance determinants during incremental testing in elite swimmers.

Psycharakis, Stelios, Cooke, Carlton, Paradisis, Giorgos, O'Hara, John and Phillips, Gary (2008) Analysis of selected kinematic and physiological performance determinants during incremental testing in elite swimmers. Journal of Strength and Conditioning Research, 22 (3). pp. 951-957.

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This study examined the relationships between selected kinematic and physiological parameters and their influence on performance, during incremental exercise in elite swimmers (competing at international level). Eleven men and ten women (all specialised in 200m events) performed an incremental 7x200m test in their specialised stroke. Stroke Rate (SR), Stroke Length (SL), Velocity (V) and Blood Lactate concentration (BLa) were measured for each 200m. In addition to the cross-sectional group design, the longitudinal performance of a male swimmer was evaluated by 4 tests during a period of 20 weeks. SR increased and SL decreased with V regardless of the age, stroke or gender of the swimmers. Statistically significant correlations were found between SR and V (p<.01, r = 0.66 to 0.99), SR and SL (p<.01, r = -0.78 to -0.99), SL and V (except for women’s freestyle and breaststroke) (p<.01, r = -0.67 to -0.98) and, BLa and V (p<.01, r = 0.7 to 0.96). Changes in SR and SL were not affected by changes in BLa. Similar velocities were produced with different combinations of SR and SL. The fastest times reached in the test were generally slower than expected and the performance in the test was not associated with competition performance. The case study revealed similar results to those of the group. The test used in this study was informative with respect to identifying the most economical and effective stroke kinematics combination for slow to sub-maximal velocities. It is possible that the swimming speeds were not maximal in the final 200m swim because of cumulative fatigue, which is a major limitation for assessing race pace. An additional test that produces velocities similar to those used in competitions would be more useful for the purpose of providing optimal kinematic information specific to racing speeds, which would facilitate performance improvement through regular monitoring in training.

Item Type: Article
Uncontrolled Keywords: kinematic; physiological; swimming; performance; velocity;
University Divisions/Research Centres: Faculty of Health, Life & Social Sciences > School of Life Sciences
Dewey Decimal Subjects: 600 Technology > 610 Medicine & health > 612 Human physiology
700 Arts & recreation > 790 Sports, games & entertainment > 797 Aquatic & air sports
Item ID: 2471
Depositing User: Dr. Stelios Psycharakis
Date Deposited: 26 Jan 2009 13:33
Last Modified: 11 May 2012 14:15

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