1. 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 (September 2014)
DOI: /j.wem
Copyright © 2014 Wilderness Medical Society Terms and Conditions

2. 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  , DOI: ( /j.wem )
Copyright © 2014 Wilderness Medical Society Terms and Conditions