Abstract：
OBJECTIVE:The aim of this study was to determine whether V˙O(2) kinetics and specifically, the time constant of transitions from rest to heavy (τ(p)H) and severe (τ(p)S) exercise intensities, are related to middle distance swimming performance. DESIGN:Fourteen highly trained male swimmers (mean ± SD: 20.5 ± 3.0 yr; 75.4 ± 12.4 kg; 1.80 ± 0.07 m) performed an discontinuous incremental test, as well as square wave transitions for heavy and severe swimming intensities, to determine V˙O(2) kinetics parameters using two exponential functions. METHODS:All the tests involved front-crawl swimming with breath-by-breath analysis using the Aquatrainer swimming snorkel. Endurance performance was recorded as the time taken to complete a 400 m freestyle swim within an official competition (T400), one month from the date of the other tests. RESULTS:T400 (Mean ± SD) (251.4 ± 12.4 s) was significantly correlated with τ(p)H (15.8 ± 4.8s; r=0.62; p=0.02) and τ(p)S (15.8 ± 4.7s; r=0.61; p=0.02). The best single predictor of 400 m freestyle time, out of the variables that were assessed, was the velocity at V˙O(2max)vV˙O(2max), which accounted for 80% of the variation in performance between swimmers. However, τ(p)H and V˙O(2max) were also found to influence the prediction of T400 when they were included in a regression model that involved respiratory parameters only. CONCLUSIONS:Faster kinetics during the primary phase of the V˙O(2) response is associated with better performance during middle-distance swimming. However, vV˙O(2max) appears to be a better predictor of T400.
journal_name
J Sci Med Sportjournal_title
Journal of science and medicine in sportauthors
Reis JF,Alves FB,Bruno PM,Vleck V,Millet GPdoi
10.1016/j.jsams.2011.05.012subject
Has Abstractpub_date
2012-01-01 00:00:00pages
58-63issue
1eissn
1440-2440issn
1878-1861pii
S1440-2440(11)00112-5journal_volume
15pub_type
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journal_title：Journal of science and medicine in sport
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更新日期：2019-09-01 00:00:00
abstract：OBJECTIVES:To determine the incidence of Achilles tendinopathy in a large group of recreational runners and to determine risk factors for developing AT. DESIGN:Observational cohort study. METHODS:Runners registering for running events (5-42 km) in the Netherlands were eligible for inclusion. Main inclusion criteria w...
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journal_title：Journal of science and medicine in sport
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abstract：OBJECTIVES:To compare the prevalence of injury sites between children and adults in alpine skiing and snowboarding. DESIGN:Retrospective comparative study. METHODS:The injuries occurring in 14 major Norwegian ski resorts were recorded by ski patrols the winter seasons 2010/2011 and 2011/2012. The injuries were relate...
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pub_type： 临床试验,杂志文章
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更新日期：2005-03-01 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：2008-09-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2007-10-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2014-09-01 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：2009-01-01 00:00:00
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journal_title：Journal of science and medicine in sport
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更新日期：2013-01-01 00:00:00
