Aerobic metabolism VS anaerobic metabolism

First see these two pictures.

Notice the difference between the exercises, an aerobic and the other anaerobic (respectively). But the difference between each? I'm gonna explain.

Aerobic metabolism.

In each skeletal muscle there is an ATP quantity (energy) stored sufficient to provide chemical energy for performing only two or three strong muscle contractions. The chemical equation for this reaction:

               ATPase

ATP---------------------- ADP + PO4 + Energy

With the addition of the breaking energy of one another compound of high-energy phosphocreatine (CrPO4), which results in creatine (Cr) and phosphate (PO4), the byproducts of the original reaction can be used to regenerate the ATP supply, this it is the relatively large deposit of phosphocreatine can provide energy for muscle contractions over a period of 20 to 30 seconds (the exact time of execution of each exercise). The regeneration of phosphocreatine is performed in part by the breakdown of glucose into lactic acid, glucose buffer is refilled quickly by breakdown of glycogen stored in deposits in muscle and liver.

The energy derived from this chain reaction is able to regenerate ATP enough to withstand strong muscular contractions of about 30 seconds, and none of the reactions required the expenditure of oxygen. So these processes are called anaerobes.

aerobic metabolism

Finally, all temporary reserves of chemical energy for muscle contraction are restored by oxidative metabolism of fats, carbohydrates and proteins in the mitochondria of muscle fiber. These molecules are mobilized from its storage sites in the body, these enzymes break large molecules into smaller units which can be oxidized in a series of chemical reactions called tricarboxylic acid cycle. The final products of these reactions are carbon dioxide, water and ATP for the restoration and maintenance of energy stocks.

Seen as is aerobic and anaerobic metabolism in your body, I want to emphasize one thing, fundamental to the development of your body, it is to practice aerobic exercise because they generate energy in the form of ATP that acts directly on your muscle, besides increasing oxygenation in his body, which is another food for your muscles to develop, that is, if you do not practice any kind of aerobic activity, continue to do, you will have better results yet.

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