dzejkej napísal:A tu si zrazu presiel z vedeckeho pristupu k velmi volnej argumentacii
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no tak napriklad:
When we cut the calories so as to create a negative energy balance are we still able to build muscle? Well, to answer this we must next understand that if our body does not have enough calories to meet the demands of exercise and basal metabolism it must start breaking down stores. Of course, as we have seen, fat stores are broken down to meet these energy demands. However, the body is not selective in its needs, it also breaks down protein and carbohydrate stores. During this period of negative energy, the body's insulin production also is much lower. Thus, the body releases glucagon and other glucocorticoids such as cortisol. These catabolic hormones quickly go to work by breaking down the whole body tissue and converting it into usable energy. So obviously, low insulin levels and high glucagon levels for long periods of time are not very conductive to building muscle. Thus, the longer we are in a negative energy balance, the more our body degrades protein to meet energy needs.
http://www.timinvermont.com/fitness/fatmusle.htm