Effect of acute DHEA administration on free testosterone in middle-aged and young men following high-intensity interval training.
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http://www.ncbi.nlm.nih.gov/pubmed/23417481
Conclusion of this study
Total testosterone and DHEA-S dropped significantly until 24 h after HIIT for both age groups, while free testosterone of DHEA-supplemented middle-aged men remained unaffected. These results demonstrate acute oral DHEA supplementation can elevate free testosterone levels in middle-aged men and prevent it from declining during HIIT. Therefore, DHEA supplementation may have significant benefits related to HIIT adaptation.
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