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High power cycle

Hyperdynamic circulation refers to the resting state in which the cardiac output is higher than normal, also known as the high output state. Cardiac output depends on heart rate and stroke volume, and is regulated by autonomic nervous system function, blood catecholamine and acetylcholine concentration, myocardial contractility and dilation, venous return cardiac blood flow and peripheral vascular resistance. The cardiac output of normal people is relatively constant at rest, which can be increased after physical exercise, emotional excitement, a large amount of diet and in a humid and hot environment, and has no effect on sleep and posture changes.


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