- Title
- Force-time characteristics of the butterfly turns by age-group swimmers
- Creator
- Ling, Ben; Blanksby, Brian; Elliott, Bruce; McElroy, G. Keith
- Date
- 2004
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/63547
- Identifier
- vital:528
- Identifier
- ISSN:0306-7297
- Abstract
- Turning time can account for more than 20% of a swimming race and better turns can improve performance significantly. Two underwater video cameras and a force platform were used to analyse the turning techniques of 16 female and 12 male, age-group, butterfly swimmers of similar swimming experience. Subjects were of mean age 13.3±1.6 years; height, 166.4±11.2cm and mass, 55.1±11.5kg. Two x 50m maximal effort butterfly swims were completed from a push-start on a 3 minute departure interval in a 25m pool. The criterion measure was the time elapsed between passing the 5m mark on the approach and departure from the wall, named the 5m Round Trip Time (RTT). A one-way ANOVA revealed no gender differences. The 5m RTT correlated significantly (p<0.01) with 50m time, height, mass, armspan, peak horizontal force, impulse, velocity-in, wall exit velocity, leg resumption speed and arm resumption distance. The 5m RTT was predicted by the equation : 12.228 - 0.024 height + 2.128 pivot time - 0.422 arm resumption distance - 1.275 arm resumption speed, when velocity-in and 50m time were removed as predictor variables.; C1
- Publisher
- Teviot Scientific Publications Ltd.
- Relation
- Journal of Human Movement Studies Vol. 47, no. 5 (2004), p. 429-451
- Rights
- Copyright Teviot Scientific Publications Ltd.
- Rights
- This metadata is freely available under a CCO license
- Subject
- 1106 Human Movement and Sports Science; Age-group swimming; Butterfly turn; Force plate
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