Running, like nothing else, activates the sympathetic-adrenal system, increasing the release of key neurotransmitters - betel-lamins (L-Dopa and dopamine), which are synthesized from the amino acid phenylalanine and complete chain of transformations in the form of norepinephrine and epinephrine. As a result of the action of adrenaline and noradrenaline increases oxygen transport to the tissues, particularly the muscles. Consumption of oxygen from the external environment helps bronhorasshiryayushee action of adrenaline (on the same principle works, by the way, and clenbuterol).
The role of epinephrine in the mobilization of energy is that under his influence in the muscle increases breakdown of glycogen in the muscles. This stimulates the oxidation-reduction reactions. Output of glucose in the blood and dispose of lactic acid (H + + lactate) can fight fatigue and work for a long time in the aerobic mode, which is necessary for fat burning. Oxidation reactions - that is aerobic (oxygen) way of splitting neutral fat to water and carbon dioxide with the release of 75 molecules of ATP:
Neutral fat + oxygen (O2) ->
75ATF + CO2 + H2O
Excessive use of high intensity (running, cycling, rowing) runs the way of aerobic oxidation, which, for all its oppressive monotony is the shortest in the burning of fat on the sides.
The other side of the role of adrenaline in the process of lipolysis is in its proper lipolytic action (in addition to its stimulating effect on the aerobic oxidation), resulting in accelerating the collapse of fatty acids and glycerol.
As catecholamines affect the process of burning fat?
As follows:
suppress appetite activate the synthesis and secretion of growth hormone lipolytic prevent excessive release of insulin.
As fitness increases the release of catecholamines are not themselves, and c-AMP (intracellular "messenger" for some hormone), which increases the sensitivity of cells to them. At the same time improves the sensitivity of cells to thyroid hormones, adrenaline and corticosteroids.
Of LTG - lipotropic hormone - there is such a magic hormone as beta-lipotropin, the biological properties of which include fat mobilization action cir-thyrotropic activity and insulin-like effect results in an increase in the rate of glucose utilization by tissues. Lipotropic effect is also available via the c-AMP, the final stage of which is the enzyme that breaks down neutral fats.
In addition, from the beta endorphin produced lipotropin. Running in turn leads to increased synthesis and entry into the blood endorphins that act on the human body like morphine (without breaking the adequacy of behavior): relieve pain, improve mood dramatically, causing euphoria and have rather strong fat-burning effect.