More Than Protein Anabolic: Post-Workout Protein Supplementation Up-Regulates Muscle Glycogen (Re-)Synthesis, As Well.
As an avid reader of the SuppVersity, you already knew that post-workout protein supplementation increases protein synthesis via mTOR-signaling and increased AKT-phosphorylation . A study ( Hara. 2011 ) published in the scientific journal Metabolism , only one week ago, has now established that the addition of protein to a post workout carbohydrate supplement led to s ignificant increases in the rate of muscle glycogen re-synthesis , as well. Figure 1: Influence of added protein (C+P, whey isolate) over carbohydrate only (CHO) supplementation on muscle glycogen 90 minutes after exhausting exercise (data adapted from Hara. 2011 ) After a 3-hour swimming test, which was intended to completely deplete the rats muscle glycogen stores, the researchers fed their rats " either 0.9 g carbohydrate per kilogram body mass for the CHO group or 0.9 g carbohydrate + 0.3 g protein per kilogram body mass for the C+P groups". Just to set this into perspective, this would translate in...