i m searching for the study that proofed, that gh given to athletes only (no other drugs and supps) improves 100m sprint inbetween 5-10% what is a lot, meaning 0.5 to 1sec improvement (or turning 10.5sec- competitor in usain bolt, or if the top guys are already taking it (and many other things) - without they arent able to go under 10.3 clean)
i read the study it a while ago online, but can t find it anymore
can anyone help