Author/Authors :
Hammouda, Omar Research Laboratory ‘’Sport Performance Optimisation’’ - National Center of Medicine and Science in Sport, Tunisia , Chtourou, Hamdi Research Laboratory ‘’Sport Performance Optimisation’’ - National Center of Medicine and Science in Sport, Tunisia , Chaouachi, Anis Research Laboratory ‘’Sport Performance Optimisation’’ - National Center of Medicine and Science in Sport, Tunisia , Chahed, Henda Laboratory of Biochemistry, CHU Farhat Hached, Sousse, Tunisia , Zarrouk, Nidhal Neurophysiologie de la Vigilance - de l'Attention et des Performances, Service d'Explorations Fonctionnelles du Système Nerveux, CHU Sahloul, Sousse, Tunisia , Miled, Abdelhedi Laboratory of Biochemistry, CHU Farhat Hached, Sousse, Tunisia , Chamari, Karim Research Laboratory ‘’Sport Performance Optimisation’’ - National Center of Medicine and Science in Sport, Tunisia , Souissi, Nizar Research Laboratory ‘’Sport Performance Optimisation’’ - National Center of Medicine and Science in Sport, Tunisia
Abstract :
Purpose: The aim of this work was to investigate the metabolic and muscle
damage responses after the level-1 Yo-Yo intermittent recovery test (YYIRT) in
young football players.
Methods: Fifteen male football players (17.42 ± 0.2 yrs, 69.91 ± 4.4 kg, 178.64 ±
3.8 cm; mean ± SD) participated in this study. Fasting blood samples for various
biochemical parameters (i.e. lactate (Lac), glucose (GLC), triglycerides (Tri),
creatine kinase (CK), uric acid (UA)) collected from a forearm vein after 5-min
of seated rest and 3-min after the test. Moreover, rating of perceived exertion
(RPE) and maximal heart rate during and after the YYIRT were recorded.
Results: Mean levels of the selected biochemical markers were raised after the
YYIRT exercise (P<0.001 for the other markers). Moreover, lipid parameters
increased significantly after the test (P<0.01 for Tri and P<0.001 for HDL).
Conclusion: These findings confirm the higher metabolic demand of aerobic as
well as anaerobic metabolism and reflect a significant mobilization of purine
cycle during the YYIRT. The increase of muscle damage markers also reflects
the higher anaerobic solicitation. From these findings, we can conclude the
importance of aerobic and anaerobic metabolism during soccer-specific
endurance performance (i.e. YYIRT, soccer match).
Keywords :
Lipid Profile , Lactate , Intermittent Recovery Test , Metabolic Responses
