Mike Murphy - Manipulating Insulin Levels To Build More Muscle and Burn Fat

[webmaster]

Mike Murphy is back with his great article on how to manulate insulin levals to build more muscle and burn fat! What do you to help your insulin levals?

http://www.teenbodybuilding.com/mike13.htm

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This information is firstly not authoritative nor is it from a credible source.

I study medicine and I become increasingly worried that sites like this disseminate misleading and false information to the unwary adolescent community.

Insulin has doubtful effects on protein synthesis, especially muscle protein. Furthermore although it promotes uptake of branched chain amino acids these are transaminated and oxidised completely for energy and do not contribute to muscle anabolism.

Pancreatic sensory mechanisms are fantastically tuned to the needs of the body and throwing hormonal messages into chaos will lead to health problems in the long run.

THE ONLY WAY TO GAIN MUSCLE IS THROUGH PURE EXERCISE

No (legal) supplements like amino acids or insulin will help very much. Spend your money on a gym membership not fancy illusions.

[TrueWarrior1]

so if i exercise 24 hours a day i'll get bigger quicker?

[LoseFatJoe]

Interesting article.. A lot of facts about insulin. The Doc here says the BCAA are not at all used in muscle anabolism. If this is the case, then what has been said for years on the importance of insulin after a workout is false. However, Doc, isn't it true that post-workout glucose stores are low and need to be replenished? In this case an insulin inducing meal after a workout would at least restore needed glucose levels.

[LoseFatJoe]

I have in my possession a copy of a published 2007 book used in medicine for endocrine physiology. Indeed, insulin promotes protein synthesis in many cells. It increases A.A. uptake and mRNA translation in muscle and adipose of proteins. Insulin also inhibits proteolysis (the breakdown of amino acids).

As was mentioned, the liver uses the increase in BCAAs for ATP synthesis (energy), but also in the liver protein synthesis is increased during digestion.

Post-worked, it can be inferred insulin is needed. Insulin promotes glycogen synthesis in muscles. During a workout, muscle and liver glycogen stores are broken into glucose and the glucose is then burned up into ATP. What's important is that excessive carbohydrate intake will cause insulin to increase triglyceride synthesis (triglycerides are composed of fatty acids) and this excessive intake will also lead to insulin resistance. Insulin resistance is the result of the body shutting down its normal duties in response to insulin being present at their receptors. As a result, progressive insulin resistance induction will result in type 2 diabetes mellitus ( a current U.S. epidemic health problem).