The effect of carbohydrate consumption during intensive exercise training on the free testosterone to cortisol ratio Public Deposited

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Last Modified
  • March 22, 2019
Creator
  • Lane, Amy
    • Affiliation: College of Arts and Sciences, Department of Exercise and Sport Science
Abstract
  • This study examined the effect of dietary carbohydrate (CHO) consumption on the free testosterone to cortisol (fTC) ratio during an intense microcycle of exercise training. The ratio is a proposed biomarker for overreaching-overtraining in athletes. Two groups, control-CHO (~60% of daily intake, n=12) and low-CHO (~30% of daily intake, n=8), of male subjects performed three consecutive days of intensive training (~70-75% maximal capacity) with a dietary intervention (day before and days of training). The fTC ratio decreased (p<0.01) from pre-study resting measurement to the final post-study resting measurement in the low-CHO group. No significant change occurred in the control group. Findings suggest if the fTC ratio is utilized as a marker of training stress a diet of ~60% CHO needs to be consumed to maintain validity of the ratio value.
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  • In Copyright
Advisor
  • Hackney, Anthony
Degree granting institution
  • University of North Carolina at Chapel Hill
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  • Open access
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