Abstract
Objectives The purpose of this study was to determine the effects of norsteroid supplementation (224 mg of 19-nor-4-androstene-3,17-dione and 120 mg of 19-nor-4-androstene-3,17-diol, total daily dose = 344 mg) on body composition and strength in resistance-trained men. Methods In a placebo-controlled, double-blind, randomized fashion, 10 subjects received the norsteroid (11 capsules containing a combination of both norsteroids) or a placebo for 8 wk (five subjects per group). Each subject participated in resistance training an average of 4 d/wk for the duration of the study. Body composition was determined via dual-energy x-ray absorptiometry. Strength was determined using a one-repetition maximum bench press and a one-repetition maximum biceps curl. Results With regard to all measures in both groups, there were no significant changes between before and after the study. Conclusions Therefore, in this small sample of resistance-trained men, 344 mg/d of norsteroid supplementation had no effect on strength or body composition.
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