Abstract:
PURPOSE:This study examined the effects of Ramadan on cycling repeated-sprint ability (RSA) and corresponding diurnal variations. METHODS:Twelve active men performed an RSA test (5 × 6-s maximal sprints interspersed with 24 s passive recovery) during morning and afternoon sessions 1 wk before Ramadan (BR), during the second (R2) and the fourth (R4) weeks of Ramadan, and 2 wk after Ramadan (AR). Maximal voluntary contraction was assessed before (MVCpre), immediately after (MVCpost), and 5 min after the RSA test (MVCpost5). Moreover, hematocrit, hemoglobin, and plasma sodium and potassium (K+) concentrations were measured at rest and after the RSA test and MVCpost. RESULTS:Overall, peak power (Ppeak) during the RSA test decreased throughout the 5 sprints. Ppeak measured in the first sprint and MVCpre were lower during Ramadan than BR in the afternoon (P < .05) and higher in the afternoon than the morning BR and AR (P < .05). However, this diurnal rhythmicity was not found for the last 4 sprints' Ppeak, MVCpost, and MVCpost5 in all testing periods. Furthermore, the last 4 sprints' Ppeak, MVCpost, MVCpost5, and morning MVCpre were not affected by Ramadan. [K+] measured at rest and after the RSA test and MVCpost were higher during Ramadan than BR in the afternoon (P < .05) and higher in the afternoon than the morning during Ramadan (P < .05). CONCLUSIONS:Fatigability is higher in the afternoon during Ramadan, and, therefore, training and competition should be scheduled at the time of day when physical performance is less affected.
journal_name
Int J Sports Physiol Performauthors
Aloui A,Chaouachi A,Chtourou H,Wong del P,Haddad M,Chamari K,Souissi Ndoi
10.1123/ijspp.8.3.254subject
Has Abstractpub_date
2013-05-01 00:00:00pages
254-62issue
3eissn
1555-0265issn
1555-0273pii
2012-0035journal_volume
8pub_type
杂志文章abstract:OBJECTIVES:To evaluate the current evidence regarding the quantification of cricket fast-bowling skill. METHODS:Studies that assessed fast-bowling skill (bowling speed and accuracy) were identified from searches in SPORTDiscus (EBSCO) in June 2017. The reference lists of identified papers were also examined for releva...
journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,评审
doi:10.1123/ijspp.2017-0169
更新日期:2018-08-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2018-03-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2016-05-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.6.4.485
更新日期:2011-12-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2011-03-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
doi:10.1123/ijspp.4.4.494
更新日期:2009-12-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2018-0384
更新日期:2019-04-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2017-0069
更新日期:2018-01-01 00:00:00
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journal_title:International journal of sports physiology and performance
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更新日期:2020-02-01 00:00:00
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journal_title:International journal of sports physiology and performance
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doi:10.1123/ijspp.2014-0418
更新日期:2016-05-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2018-07-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2016-03-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.2013-0232
更新日期:2014-09-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2017-02-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2017-08-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章,随机对照试验
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更新日期:2017-08-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2013-07-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2019-10-14 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.3.3.262
更新日期:2008-09-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
doi:10.1123/ijspp.8.4.384
更新日期:2013-07-01 00:00:00
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journal_title:International journal of sports physiology and performance
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更新日期:2015-10-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2015-09-01 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2014-07-01 00:00:00
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更新日期:2011-09-01 00:00:00
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更新日期:2019-10-15 00:00:00
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journal_title:International journal of sports physiology and performance
pub_type: 杂志文章
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更新日期:2012-03-01 00:00:00