Competitive swimmers modify racing start depth upon request

White, Josh C. and Cornett, Andrew C. and Wright, Brian V. and Willmott, Alexander P. and Stager, Joel M. (2011) Competitive swimmers modify racing start depth upon request. International Journal of Aquatic Research and Education, 5 (2). pp. 187-198. ISSN 1932-9997

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Abstract

To expand upon recent findings showing that competitive swimmers complete significantly shallower racing starts in shallower pools, 12 more experienced and 13 less experienced swimmers were filmed underwater during completion of competitive starts. Two starts (1 routine and 1 “requested shallow”) were executed from a 0.76 m block height into water 3.66 m deep. Dependent measures were
maximum head depth, head speed at maximum head depth, and distance from the starting wall at maximum head depth. Statistical analyses yielded significant main effects (p < 0.05) for both start type and swimmer experience. Starts executed by the more experienced swimmers were deeper and faster than those executed by the less experienced swimmers. When asked to dive shallowly, maximum head depth
decreased (0.19 m) and head speed increased (0.33 ms-1) regardless of experience. The ability of all swimmers to modify start depth implies that spinal cord injuries
during competitive swimming starts are not necessarily due to an inherent inability to control the depth of the start.

Item Type:Article
Keywords:Swimming, Biomechanics, Safety, Swim start
Subjects:C Biological Sciences > C600 Sports Science
B Subjects allied to Medicine > B830 Biomechanics, Biomaterials and Prosthetics (non-clinical)
Divisions:College of Social Science > School of Sport and Exercise Science
ID Code:4378
Deposited By: Sandy Willmott
Deposited On:10 Apr 2011 22:17
Last Modified:05 Dec 2013 10:22

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