article information

Asian Journal of Sports Medicine: Vol.3, issue 3; e93501
published online: September 01, 2012
article type: Research Article
received: May 13, 2019
accepted: February 15, 2012
DOI: https://doi.org/10.5812/asjsm.34607
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Effects of Morning Caffeine’ Ingestion on Mood States, Simple Reaction Time, and Short-Term Maximal Performance on Elite Judoists

authors:

avatar Makram Souissi 1 , 2 , avatar Salma Abedelmalek 2 , 3 , avatar Hamdi Chtourou 2 , 4 , * , avatar Rim Atheymen 1 , avatar Ahmed Hakim 1 , avatar Zouhair Sahnoun 1

Laboratory of Pharmacology, Faculty of medicine, University of Sfax, Tunisia
Research Unit, High Institute of Sport and Physical Education, University of Sfax, Tunisia
Department of Physiology, Faculty of Medicine, University of Sousse, Tunisia
Research Laboratory “Sports performance optimization” National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia

how to cite: Souissi M, Abedelmalek S, Chtourou H, Atheymen R, Hakim A, et al. Effects of Morning Caffeine’ Ingestion on Mood States, Simple Reaction Time, and Short-Term Maximal Performance on Elite Judoists. Asian J Sports Med. 2012;3(3):e93501. https://doi.org/10.5812/asjsm.34607.

Abstract

Purpose: The purpose of the present study was to evaluate the ergogenic effect of caffeine ingestion on mood state, simple reaction time, and muscle power during the Wingate test recorded in the morning on elite Judoists.
Methods: Twelve elite judoists (age: 21.08 ± 1.16 years, body mass: 83.75 ± 20.2 kg, height: 1.76 ±6.57 m) participated in this study. Mood states, simple reaction time, and muscle power during the Wingate test were measured during two test sessions at 07:00 h and after placebo or caffeine ingestion (i.e. 5 mg/kg). Plasma concentrations of caffeine were measured before (T0) and 1-h after caffeine’ ingestion (T1) and after the Wingate test (T3).
Results: Our results revealed an increase of the anxiety and the vigor (P<0.01), a reduction of the simple reaction time (P<0.001) and an improvement of the peak and mean powers during the Wingate test. However, the fatigue index during this test was unaffected by the caffeine ingestion. In addition, plasma concentration of caffeine was significantly higher at T1 in comparison with T0.
Conclusions: In conclusion, the results of this study suggest that morning caffeine ingestion has ergogenic properties with the potential to benefit performance, increase anxiety and vigor, and decrease the simple reaction time.

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