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| Is swimming good for Cardiovascular? |
1. The buoyancy of water promotes blood circulation
In the water, the gravity of the human body is mostly offset by the buoyancy of the water, so that the swimmer can exercise in a horizontal position, and the pressure of the water on the skin makes the blood in the large vein easily flow back to the atrium, which is the body's Blood circulation creates good conditions.
2. Water resistance increases myocardial strength and blood vessel elasticity
When people swim in the water, they are hindered by the resistance of the water, so that the swimmers can exercise as much as they can on the land. It takes a lot of effort to get a certain speed, so it has a great influence on the human cardiovascular system, especially in the When swimming fast, the heart rate is greatly accelerated, and the output of the blood is 5 to 6 times higher than that of the quiet. This requires an increase in blood flow, and completes the blood circulation while overcoming the pressure of the water and the cold contraction of the microvessels. Thereby the strength of the myocardium is increased and the elasticity of the blood vessels is increased.
