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The Comparison of 2 and 4 Weeks of CoQ10 Supplementation on the Ventilator Threshold and Respiratory Compensation Point in Young Male Endurance Athletes

Document Type : Research Paper

Authors

1 Ph.D. Student in Sport Phsiology, University of Mohaghegh Ardabili

2 Associated Professor of Sport Physiology, University of Mohaghegh Ardabili

3 Professor of Sport Physiology, University of Mohaghegh Ardabili

Abstract

The aim of this semi-experimental study was to examine the effects of 2 and 4 weeks of CoQ10 supplementation on the ventilator threshold and respiratory compensation point in Young male endurance athletes. Fourteen (22.4±1/2 y, 12.5±4.4 fat percent, 53.3±2.7 ml.kg-1.min-1) young male athletes randomly were divided into two equal groups (n=7). In a double-blind four weeks study, experimental group and control group consumed 60 mg/daily CoQ10 and dextrose, respectively. Two groups performed Iliev GXT on the treadmill to measure ventilator threshold (VT) and respiratory compensation point (RCP) on the 1, 14 and 28 days. Respiratory gases collected automatically through the gas analyzer breath by breath and VO2, VCO2 and VE recorded. VO2 equivalent to VT and RCP automatically calculated at 15s intervals. Analysis of variance and Bonferroni post hoc test (within group), independent t test (between groups) have been used (P<0.05). The results showed that; mean VO2 equivalent to VT and RCP in Q10 group had a significant increase but there was no significant difference between two groups (P>0.05). In none of the groups, RCP hadn’t a significant difference in three stages (F(2,12)=1.19, P=0.34). Therefore, supplementation with 60 mg/d CoQ10 for either 2 or 4 weeks had no significant effects on the ventilator threshold (VT) and respiratory compensation threshold (RCP) in young male endurance athletes.

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References
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Sport Physiology
Volume 9, Issue 33
May 2017
Pages 153-168
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History
  • Receive Date: 28 December 2015
  • Revise Date: 13 May 2016
  • Accept Date: 25 May 2016
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