Biology of Sport
eISSN: 2083-1862
ISSN: 0860-021X
Biology of Sport
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2/2022
vol. 39
 
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abstract:
Original paper

Effects of melatonin ingestion on physical performance and biochemical responses following exhaustive running exercise in soccer players

Mohamed Amine Farjallah
1
,
Ahmed Graja
1
,
Lobna Ben Mahmoud
2
,
Kais Ghattassi
3
,
Mariem Boudaya
4
,
Tarak Driss
5
,
Kamel Jamoussi
4
,
Zouheir Sahnoun
2
,
Nizar Souissi
6
,
Omar Hammouda
1, 5

1.
Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia
2.
Department of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
3.
Research Unit, Education, Motricity, Sport and Health, UR15JS01, High Institute of Sport and Physical Education, University of Sfax, Tunisia
4.
Biochemistry Laboratory, CHU Hedi Chaker, University of Sfax, Tunisia
5.
Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-APSA), UPL, Paris Nanterre University, UFR STAPS, Nanterre France
6.
“Physical Activity, Sport and Health” Research Unit, UR18JS01, National Sport Observatory, Tunis, Tunisia
Biol Sport. 2022;39(2):473–479
Online publish date: 2021/07/02
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Antioxidant supplementation has become a common practice among athletes to boost sport achievement. Likewise, melatonin (MEL) has been ingested as an ergogenic aid to improve physical performance. To date, no study has checked whether the multiple beneficial effects of MEL have an outcome during a maximum running exercise until exhaustion. Therefore, the present study aimed to evaluate the effect of MEL ingestion on physical performance and biochemical responses (i.e., oxidative stress) during exhaustive exercise. In a double blind randomized study, thirteen professional soccer players [age: 17.5 ± 0.8 years, body mass: 70.3 ± 3.9 kg, body height: 1.80 ± 0.08 m; maximal aerobic speed (MAS): 16.85 ± 0.63 km/h; mean ± standard deviation], members of a first league squad, performed a running exercise until exhaustion at 100% of MAS, after either MEL or placebo ingestion. Physical performance was assessed, and blood samples were obtained at rest and following the exercise. Compared to placebo, MEL intake prevented the increase in oxidative stress markers (i.e., malondialdehyde), alleviated the alteration of antioxidant status (i.e., glutathione peroxidase, uric acid and total bilirubin) and decreased post‑exercise biomarkers of muscle damage (i.e., creatine kinase and lactate dehydrogenase) (p < 0.05). However, physical performance was not affected by MEL ingestion (p > 0.05). In conclusion, acute MEL intake before a maximal running exercise protected athletes from oxidative stress and cellular damage but without an effect on physical performance.
keywords:

Melatonin antioxidant, Oxidative stress, Cellular damage, Time to exhaustion

 
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