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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Diurnal variation in wingate test performances: Influence of active warm-UP
Chronobiology International, Volume 27, No. 3, Year 2010
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Description
The purpose of the present study was to examine the effects of active warm-up duration on the diurnal fluctuations in anaerobic performances. Twelve physical education students performed a medical stress test (progressive test up to exhaustion) and four Wingate tests (measurement of peak power [Ppeak], mean power [Pmean], and fatigue index during an all-out 30 s cycling exercise). The tests were performed in separate sessions (minimum interval36h) in a balanced and randomized design at 08:00 and 18:00h, either after a 5min (5-AWU) or a 15min active warm-up (15-AWU). AWU consisted of pedaling at 50 of the power output at the last stage of the stress exhausting test. Rectal temperature was collected throughout the sessions. A two-way ANOVA (warm-up×time of day) revealed a significant interaction for Ppeak (F(1.11)6.48, p<0.05) and Pmean (F(1.11)5.84, p<0.05): the time-of-day effect was significant (p<0.001) in contrast with the effect of warm-up duration (p>0.05). Ppeak and Pmean improved significantly from morning to afternoon after both 5-AWU and 15-AWU, but the effect of warm-up duration was significant in the morning only. Indeed, the values of Ppeak or Pmean were the same after both warm-up protocols in the afternoon. For rectal temperature, there was no interaction between time-of-day and warm-up duration. Rectal temperature before and after both the warm-up protocols was higher in the afternoon, and the effect of warm-up duration on temperature was similar at 08:00 and 18:00h. In conclusion, the interpretation of the results of the anaerobic performance tests should take into account time-of-day and warm-up procedures. Longer warm-up protocols are recommended in the morning to minimize the diurnal fluctuations of anaerobic performances. © Informa UK Ltd.
Authors & Co-Authors
Souissi, Nizar
Tunisia, Tunis
République Tunisienne Ministère de la Jeunesse, Des Sports et de L'éducation Physique
Driss, Tarak
France, Nanterre
Université Paris Nanterre
Chamari, K.
Tunisia, Tunis
République Tunisienne Ministère de la Jeunesse, Des Sports et de L'éducation Physique
Vandewalle, Henry
France, Bobigny
Service D'explorations Fonctionnelles et de Médecine du Sport
Davenne, Damien
France, Paris
Inserm
France, Caen
Université de Caen Normandie
Gam, Abdelkader
Tunisia, Tunis
République Tunisienne Ministère de la Jeunesse, Des Sports et de L'éducation Physique
Fillard, Jean Robert
France, Paris
Insep Institut National Des Sports et Deducation Physique
Jousselin, Eric
France, Paris
Insep Institut National Des Sports et Deducation Physique
Statistics
Citations: 109
Authors: 8
Affiliations: 6
Identifiers
Doi:
10.3109/07420528.2010.483157
ISSN:
07420528
e-ISSN:
15256073