In the abstract, yes it says that in heavy resistance training the levels of testosterone and GH were either unaffected or even slightly lowered. In the second paragraph after "introduction" is says that with doses of greater than 1mg Melatonin showed an increase in GH. Lurker was reccomending to take it before low intesity cardio workouts. Here it is from the article (I only removed citations from the section for easier reading):
"It is very well-known that the GH response increases with both duration and intensity of exercise. Meeking studied the effects of a single dose of oral melatonin (5 mg) on the exercise-induced GH secretion in men. The bicycle exercise was performed for 8 min at a workload corresponding to 70% of that achieved at the VO2max test. They found that this short period exercise induced an increase in GH concentration following the melatonin treatment that was greater than with the placebo as assessed by both the area under the curve (AUC) and the peak increase in GH concentration."
Originally Posted by Lurker27
Can you ( or anyone) get the full text to check the 0.5 mg effect? I'm probably just wrong but I'm curious
From the article I quoted from, it seems that anything less than 1mg didn't have much effect on testosterone or GH levels.