| Stroking Parameters during Continuous and Intermittent Exercise in Regional-Level Competitive Swimmers. | |
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MedLine Citation:
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PMID: 22592544 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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This study aimed to determine whether maximal lactate steady state (MLSS) represents a boundary above which not only physiological but also technical changes occur. On different days, 13 male swimmers (23±9 years) performed the following tests: 1) a 400-m all-out swim, to determine maximal aerobic speed (S-400); 2) a series of 30-min sub-maximal swims, to determine continuous MLSS (MLSSc), and; 3) a series of 12×150 s sub-maximal swims, to determine intermittent MLSS (MLSSi). Stroke rate (SR), distance per stroke cycle (DS) and stroke index (SI) were analyzed at and above (102.5%) MLSSc and MLSSi. MLSSi (1.17±0.09 m.s - 1) was significantly higher than MLSSc (1.13±0.08 m.s - 1) while blood lactate concentration (mmol.L - 1) was similar between the 2 conditions (4.3±1.1 and 4.4±1.5, respectively). The increase in SR and decreases in DS and SI were significant during MLSSi, 102.5% MLSSc and 102.5% MLSSi. During MLSSc, DS also decreased significantly (- 3.6%) but with no change in SR or SI. Thus, stroking technique of regional-level competitive swimmers changes over time when they swim at or above MLSS. This is the case during both continuous and intermittent swimming, despite steady state blood lactate concentrations. |
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Authors:
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M F M Oliveira; F Caputo; J Dekerle; B S Denadai; C C Greco |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-5-16 |
Journal Detail:
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Title: International journal of sports medicine Volume: - ISSN: 1439-3964 ISO Abbreviation: - Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-5-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8008349 Medline TA: Int J Sports Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© Georg Thieme Verlag KG Stuttgart · New York. |
Affiliation:
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Human Performance Research Group, Physical Education, Florianópolis, Brazil. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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