The Effect of Acute L-Carnitine Supplementation on Endurance Performance and Fatigue Index in Young Male Athletes

Document Type : Research Paper I Open Access I Released under (CC BY-NC 4.0) license

Authors

1 Msc of Sport Physiology, Department of Physical Education and Sport Sciences, Faculty of Education and Psychology, Mohaghegh Ardabili University, Ardabil, Iran

2 Professor, Department of Physical Education and Sport Sciences, Faculty of Education and Psychology, Mohaghegh Ardabili University, Ardabil, Iran

3 Msc of Exercise Physiology, Department of Physical Education and Sport Sciences, Faculty of Education and Psychology, Mohaghegh Ardabili University, Ardabil, Iran

4 Ph.D. Student of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran

Abstract

Aim: L-carnitine may improve performance and decrease fatigue in athletes by increasing lipid oxidation. The purpose of this study was to investigate the effect of acute L-carnitine supplementation on endurance performance and fatigue index in athlete young men. Methods: This study was a double blind, cross over and quasi experimental study. Subjects included 12 athlete young men athletes working in volleyball who were divided into two groups: experimental (consumption of 4.5 g L-carnitine with 6 drops of lemon juice in 250 mg) and control (6 drops of lemon juice in 250 mg of water as a placebo). Each of the subjects in two separate sessions performed the RAST test three times in one hour interval and were measured maximum power, minimum power, average power and fatigue index. The statistical tests used for data analysis were the analysis of variance with repeated measures and independent t-test (P>0.05). Results: The results showed that in the experimental group there was a significant difference between the first and second stages of the variables maximum power (p = 0.007), minimum power (p= 0.028) and average power (p= 0.002), But there was no significant difference between the other steps (p < 0.05). Also, there was no difference between different stages of fatigue index in experimental group (p <0.05). In addition, comparing the experimental and control groups in the above variables showed that there was no significant difference between the groups at any of the test stages (p < 0.05). Conclusion: It seems that acute consumption of L-carnitine supplement during one session of vigorous physical activity does not have significant effect on endurance and fatigue index.

Keywords

References

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Journal of Applied Health Studies in Sport Physiology
Volume 7, Issue 1
April 2020
Pages 29-37

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History

  • Receive Date: 09 May 2020
  • Revise Date: 31 July 2020
  • Accept Date: 23 August 2020

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