The impact of massage on the cardiovascular system
Muscle capillaries have an independent contractility due to the so-called Rouget cells located in their walls.Cutting and swelling, Rouget cells are able to modify the lumen of the capillaries, so that the capillaries are completely or expand, or shrink and close.Expansion of capillaries occurs due to exposure to chemicals Rouget cells collapse of energy substances.The impetus for the collapse of energy substances in the muscle, it is the excitement caused by the mechanical action of massage, and especially deep kneading techniques.The condition of the vascular walls and affect other chemical substances in the blood (epinephrine, norepinephrine, lactic acid, adeno-zintrifosfornaya acid).This complex set of processes affecting the blood circulation in the capillaries and blood vessels, is coordinated by the central nervous system, which regulates not only the magnitude of the vascular lumen, but also the permeability of capillary walls, changing exchange between the blood and tissues (see. Diagram 3).
bloodstream in the venous portion is wider than in the arterial, resulting in slower blood flow (hemodynamics by law).The movement of blood in the veins is primarily due to the difference in blood pressure in the veins of the small and large, that is, at the beginning and at the end of the venous system.This difference, however, small, and therefore the blood flow in the veins depends on a number of additional factors.One of them is that the veins endothelium (except vena cava, hepatic portal vein system and small venules) forms valves transmissive just blood toward the heart.Any force, compressing the veins cause blood moving back the blood will not go due to the presence of valves.
In the application of massage techniques, especially grinding and mashing, compressed wall of the veins and muscles.This allows, on the one hand, to increase the pressure at the start of the venous system, thereby accelerating the advance of blood to the heart, and on the other - to cause movement of blood due to compression of the vein walls massaged muscles.All this facilitates the pumping function of the heart and reduces the load on the myocardium.
Figure 3. Effect of massage on the cardiovascular system.