What you do is use a theoretical concept to try to predict an outcome.
So again, please show actual data that insulin increases protein synthesis or LBM. I already showed you that it does not.
Ben, could you eleborate more in your posts, because I'm find myself guessing what you mean.
Diabetes. 1992 Apr;41(4):424-9.
Growth hormone stimulates skeletal muscle protein synthesis and antagonizes insulin's antiproteolytic action in humans.
Fryburg DA, Louard RJ, Gerow KE, Gelfand RA, Barrett EJ.
Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut.
We examined the effects of a combined, local intra-arterial infusion of growth hormone (GH) and insulin on forearm glucose and protein metabolism in seven normal adults. GH was infused into the brachial artery for 6 h with a dose that, in a previous study, stimulated muscle protein synthesis (phenylalanine Rd) without affecting systemic GH, insulin, or insulinlike growth factor I concentrations. For the last 3 h of the GH infusion, insulin was coinfused with a dose that, in the absence of infused GH, suppressed forearm muscle proteolysis by 30-40% without affecting systemic insulin levels. Measurements of forearm glucose, amino acid balance, and [3H]phenylalanine and [14C]leucine kinetics were made at 3 and 6 h of the infusion. Glucose uptake by forearm tissues in response to GH and insulin did not change significantly between 3 and 6 h. By 6 h, the combined infusion of GH and insulin promoted a significantly more positive net balance of phenylalanine, leucine, isoleucine, and valine (all P less than 0.05). The change in net phenylalanine balance was due to a significant increase in phenylalanine Rd (51%, P less than 0.05) with no observable change in phenylalanine Ra. For leucine, a stimulation of leucine Rd (50%, P less than 0.05) also accounted for the change in leucine net balance, with no suppression of leucine Ra. The stimulation of Rd, in the absence of an observed effect on Ra, suggests that GH blunts the action of insulin to suppress proteolysis in addition to blunting insulin's action on Rd.
PMID: 1607069 [PubMed - indexed for MEDLINE]
I'm not fully sure why you posted this study, as all this says that in a previous! study GH has been found to have an effect on skeletal muscle protein synthesis. If you want to present your case, track that study down, but note it is an infusion study so I'm afraid that it will be a superphysiological dose.
Also, you ask how much could really be lost in that time. Let's reverse that, what is a little (if any?) physiological GH pulse going to archieve in a even shorter time frame.