Abstract：
:The objective of this study was to analyze changes in stroke rate (SR), stroke length (SL) and stroke phases (entry and catch, pull, push and recovery) when swimming at (MLSS) and above (102.5% MLSS) the maximal lactate steady state. Twelve endurance swimmers (21±8 year, 1.77±0.10 m and 71.6±7.7 kg) performed in different days the following tests: (1) 200- and 400-m all-out tests, to determine critical speed (CS), and; (2) 2-4 30-min sub-maximal constant-speed tests, to determine the MLSS and 102.5% MLSS. There was significant difference among MLSS (1.22±0.05 ms(-1)), 102.5% MLSS (1.25±0.04 ms(-1)) and CS (1.30±0.08 ms(-1)). SR and SL were maintained between the 10th and 30th minute of the test swum at MLSS and have modified significantly at 102.5% MLSS (SR - 30.9±3.4 and 32.2±3.5 cycles min(-1) and SL - 2.47±0.2 and 2.38±0.2 m cycle(-1), respectively). All stroke phases were maintained at 10th and 30th minute at MLSS. However, the relative duration of propulsive phase B (pull) increased significantly at 102.5% MLSS (21.7±3.4% and 22.9±3.9%, respectively). Therefore, the metabolic condition may influence the stroke parameters (SR and SL) and stroke strategy to maintain the speed during swim tests lasting 30 min.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Pelarigo JG,Denadai BS,Greco CCdoi
10.1016/j.jsams.2010.08.004subject
Has Abstractpub_date
2011-03-01 00:00:00pages
168.e1-168.e5issue
2eissn
1440-2440issn
1878-1861pii
S1440-2440(10)00166-0journal_volume
14pub_type
杂志文章abstract：OBJECTIVES:To determine injury risk-workload associations in collegiate American Football. DESIGN:Retrospective analysis. METHODS:Workload and injury data was recorded from 52 players during a full NCAA football season. Acute, chronic, and a range of acute:chronic workload ratios (ACWR: 7:14, 7:21 and 7:28 day) calcu...
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更新日期：2018-12-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2018-10-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2020-11-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 临床试验,杂志文章
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更新日期：2003-12-01 00:00:00
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pub_type： 杂志文章,评审
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更新日期：2003-09-01 00:00:00
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更新日期：2018-07-01 00:00:00
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更新日期：2010-01-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2015-03-01 00:00:00
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更新日期：2020-06-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2013-09-01 00:00:00
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journal_title：Journal of science and medicine in sport
pub_type： 杂志文章
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更新日期：2011-03-01 00:00:00
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更新日期：2018-10-01 00:00:00
