Cardiorespiratory fitness and the relationship between body fat and resting testosterone in men

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Objective: To examine the effect of cardiovascular fitness, i.e. VO2max, on the relationship between weight status and resting testosterone level (RTL) in males. Materials and methods: A subset of male participants from the 2003–2004 National Health and Nutrition Examination Survey were analyzed by weight status, i.e. normal, overweight, obese, and all participants. Bivariate correlation coefficients were computed for RTL, percent body fat (BF%), and VO2max. Partial correlation coefficients were computed between RTL and BF% controlling for VO2max and between RTL and VO2max controlling for BF%. Results: Bivariate correlations between RTL and BF%, and RTL and VO2max were significant in all groups. The partial correlation coefficients between RTL and BF% controlling for VO2max were significant in the normal and all participants group. When RTL and VO2max were analyzed controlling for BF% only the all participants group remained significant. Conclusion: Cardiovascular fitness or weight status may independently influence RTL in males.

Original languageEnglish
JournalArchives of Physiology and Biochemistry
Publication statusAccepted/In press - 1 Jan 2018



  • Endocrine
  • aerobic fitness
  • body composition
  • obesity
  • overweight

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