<div></div><div id="QUOTEHEAD">QUOTE</div><div id="QUOTE">I know i've read that the increase in muscle Mechano-Growth factor is relatively short lived. And based on this study, Fractional Synthetic Rates in muscle are short lived in trained subjects, returning near baseline in 16 hours. </div> That's the interesting part of this study. Maybe we are only growing 12-16 hours post-workout and then back to baseline. 36-48 hours might only be achieved by someone completely new to weight lifting.