Journal article
The force-time profile of elite front crawl swimmers
Journal of Sports Sciences, Vol.29(8), pp.811-819
2011
Abstract
In this study, we used recently developed technology to determine the force-time profile of elite swimmers, which enabled coaches to make informed decisions on technique modifications. Eight elite male swimmers with a FINA (Federation Internationale de Natation) rank of 900รพ completed five passive (streamline tow) and five net force (arms and leg swimming) trials. Three 50-Hz cameras were used to video each trial and were synchronized to the kinetic data output from a force-platform, upon which a motorized towing device was mounted. Passive and net force trials were completed at the participant's maximal front crawl swimming velocity. For the constant tow velocity, the net force profile was presented as a force-time graph, and the limitation of a constant velocity assumption was acknowledged. This allowed minimum and maximum net forces and arm symmetry to be identified. At a mean velocity of 1.92 +/- 0.06 m . s -1, the mean passive drag for the swimmers was 80.3 +/- 4.0 N, and the mean net force was 262.4 +/- 33.4 N. The mean location in the stroke cycle for minimum and maximum net force production was at 45% (insweep phase) and 75% (upsweep phase) of the stroke, respectively. This force-time profile also identified any stroke asymmetry.
Details
- Title
- The force-time profile of elite front crawl swimmers
- Authors
- Danielle Formosa (Author) - Australian Institute of SportB Mason (Author) - Australian Institute of SportBrendan J Burkett (Author) - University of the Sunshine Coast - Faculty of Science, Health and Education
- Publication details
- Journal of Sports Sciences, Vol.29(8), pp.811-819
- Publisher
- Routledge
- DOI
- 10.1080/02640414.2011.561867
- ISSN
- 0264-0414
- Organisation Unit
- School of Health and Behavioural Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health - Sports & Exercise Science
- Language
- English
- Record Identifier
- 99449655502621
- Output Type
- Journal article
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