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Morning Melatonin Ingestion and Diurnal Variation of Short-Term Maximal Performances in Soccer Players

Abstract : Aim Very few studies have investigated the temporal specificity of melatonin (MEL) ingestion upon short-term maximal athletic performances. The aim of the present study was to explore the effect of morning MEL ingestion on cognitive and physical performances measured in the afternoon. Methods Twelve soccer players from a Tunisian squad (17.9 ± 1.3 years, 1.74 ± 0.06 m and 62.0 ± 8.8 kg) participated in the present study. They performed two testing sessions at 08:00 h, 12:00 h and 16:00 h after either MEL (5mg) or placebo (PLA) ingestion, in a randomized order. During each period, the participants performed the following cognitive and physical tests: reaction time and vigilance tests, medicine-ball throw (MBT), five jumps, handgrip strength (HG), and agility tests. Results cognitive and physical performances were significantly higher at 16:00 h compared to 08:00 h during the two conditions (p < 0.05). Moreover, performances of MBT and HG were lower in the morning with MEL in comparison to PLA (p < 0.05). However, MEL ingestion did not affect physical and cognitive performances measured at 12:00 h and 16:00 h. Conclusion morning MEL ingestion has no unfavourable effect on afternoon physical and cognitive performances in soccer players.
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Submitted on : Tuesday, February 14, 2017 - 4:17:52 PM
Last modification on : Wednesday, October 14, 2020 - 4:06:13 AM

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Kais Ghattassi, Omar Hammouda, Antonia Graja, Nissaf Boudhina, Hamdi Chtourou, et al.. Morning Melatonin Ingestion and Diurnal Variation of Short-Term Maximal Performances in Soccer Players. Acta Physiologica Hungarica, Akadémiai Kiadó, 2016, 103 (1), pp.94-104. ⟨10.1556/036.103.2016.1.9⟩. ⟨hal-01467686⟩

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