Abstract：
:This study analyzes stroke phases and arm and leg coordination during front crawl swimming as a function of swim velocity and performance level. Forty-three swimmers constituted three groups based on performance level. All swam at three different swim velocities, corresponding to the paces appropriate for the 800 m, 100 m, and 50 m. The different stroke phases and the arm and leg coordination were identified by video analysis. Arm coordination was quantified using a new index of coordination (IdC), which expresses the three major modalities opposition, catch-up and superposition. Opposition, where one arm begins the pull phase when the other is finishing the push phase; catch up, which has a lag time (LT) between propulsive phases of the two arms; and superposition, which describes an overlap in the propulsive phases. The IdC is an index which characterizes coordination patterns by measure of LT between propulsive phases of each arm. The most important results showed that duration of the propulsive phases (B + C) increased significantly with increasing velocity: 43.1 +/- 3.3% for V800; 46.5 +/- 3% for V100 and 49 +/- 3% for V50. The arm and leg synchronization was modified in the sense of an increase in six-beat kick. The IdC increased significantly with velocity: IdCV800 = -7.6 +/- 6.4%; IdCV100 = -3.2 +/- 5.1% and IdCV50 = -0.9 +/- 5.6%. IdC increased also significantly with performance level: IdCG3 = -6.07 +/- 5.3%; IdCG2 = -3.9 +/- 4.2% and IdCG1 = -1.76 +/- 5.6% for the mean of the 3 velocity. The two extreme IdC were IdCG3V800 = -9.4 +/- 5.4% and IdCG1V50 = +2.53 +/- 4.4%.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Chollet D,Chalies S,Chatard JCdoi
10.1055/s-2000-8855subject
Has Abstractpub_date
2000-01-01 00:00:00pages
54-9issue
1eissn
0172-4622issn
1439-3964journal_volume
21pub_type
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journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
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更新日期：2014-10-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0029-1243645
更新日期：2010-03-01 00:00:00
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journal_title：International journal of sports medicine
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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更新日期：2008-05-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
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journal_title：International journal of sports medicine
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
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更新日期：1998-06-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
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journal_title：International journal of sports medicine
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-971138
更新日期：1999-07-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-965808
更新日期：2008-08-01 00:00:00
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journal_title：International journal of sports medicine
pub_type： 杂志文章,随机对照试验
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更新日期：2016-09-01 00:00:00
