| Arm and leg power output in swimmers during simulated swimming. | |
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MedLine Citation:
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PMID: 10912895 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: Previously, it has not been possible to compare power output of the arms and legs during simulated swimming using dry-land ergometry. The purpose of this study was to determine arm-pulling and leg-kicking power using isokinetic dry-land ergometry. METHODS: Twenty-two highly trained male swimmers of mean (+/- SD) age, 23 +/- 3.6 yr; body mass, 78 +/- 5.9 kg; and stature, 1.79 +/- 0.04 m were recruited to the study. First, subjects performed 10 s of all-out exercise at each of five resistance settings, with 1 h rest in between, to determine the best maximal pull velocity (MPVopt). Second, they performed an all-out 30-s test at MPVopt, which was repeated the following day. These repeated 30-s tests were performed separately using simulated front-crawl arm-pulling and leg-kicking, on a computer-interfaced swim bench and purpose-built leg-kicking ergometer. Peak and mean power output (PPO; MPO) were determined from regression analysis of the power vs time relationship. RESULTS: The mean (+/- SEM) PPO for arms and legs were 304 +/- 22 W versus 435 +/- 36 W. For MPO, the means were 225 +/- 31 W vs 312 +/- 26 W, respectively. These values were attained at mean MPVopt of 2.5 +/- 0.2 m x s(-l) for arms and 2.3 +/- 0.4 m x s(-1) for legs. The variation in PPO from repeated testing was 7.3% for arms and 8.3% for legs. Conclusions: These results show that the legs can sustain greater power output than the arms during simulated swimming. Also, the intra-subject variation in measurement of power output is small using these dry-land ergometers. These methods of assessment might be useful in explaining swimming performance and in monitoring changes that take place during training. |
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Authors:
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I L Swaine |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 32 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2000 Jul |
Date Detail:
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Created Date: 2000-11-13 Completed Date: 2000-12-22 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1288-92 Citation Subset: IM; S |
Affiliation:
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Physiology of Exercise, De Montfort University Bedford, United Kingdom. iswaine@dmu.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Arm / physiology Ergometry Humans Leg / physiology Male Physical Exertion* Swimming / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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