Brian R. Kupchak, PhD, MT, William J. Kraemer, PhD, Martin D

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Presentation transcript:

The Impact of an Ultramarathon on Hormonal and Biochemical Parameters in Men Brian R. Kupchak, PhD, MT, William J. Kraemer, PhD, Martin D. Hoffman, MD, Stephen D. Phinney, MD, PhD, Jeff S. Volek, PhD, RD Wilderness & Environmental Medicine Volume 25, Issue 3, Pages 278-288 (September 2014) DOI: 10.1016/j.wem.2014.03.013 Copyright © 2014 Wilderness Medical Society Terms and Conditions

Figure 1 Testosterone (A), luteinizing hormone (B), sex hormone–binding globulin (C), cortisol (D), and testosterone to cortisol ratio (E) before and after an ultramarathon. Values are mean ± 95% CI (n = 12). aP < .05 vs Pre; bP < .01 vs Pre; cP < .001 vs Pre. Pre, prerace; IP, immediately postrace; D1, 51 to 54 hours from start of race; D2, 75 to 78 hours from start of race; SHBG, sex hormone–binding globulin; LH, luteinizing hormone; Test:Cort, testosterone to cortisol ratio. Wilderness & Environmental Medicine 2014 25, 278-288DOI: (10.1016/j.wem.2014.03.013) Copyright © 2014 Wilderness Medical Society Terms and Conditions