Time passes and injures suit instead long to swim

Time passes and injures suit instead long to swim
Time passes and injures suit instead long to swim
Zhengzhou University second affiliated hospital Peng strong swimming scorching the intersection of Xia Ri and suitable sport forever, can burn human fat effectively, enable health all position, exercise. But if the time to swim is too long, and the way to swim is incorrect, will damage people's health instead. Because water can heat conduct, the old friend will pass water release heat constantly during swimming. If the time of swimming is not long, the human body can keep internal heat by closing conditioned reflex such as the pore, shrink blood vessel, maintain the tissue to need. But if the time of swimming is too long, the heat of the health knows a large amount of loss, the regulating function of the body temperature will be destroyed, cause the skin blood vessel to shrink, the venule is expanded, the velocity of flow of blood even stagnates in the vein under the skin slowly. In this case, human body will present uncomfortable symptom, cause skin to be livid purple turning black by lip, tiny goose pimples appear on one's body, convulsion even happen in the serious one. In this case, it is very apt to cause cold, tachycardia and muscle to strain etc.. So, when summer swim, don't generally be over two hours; When winter swim, it should not be too long. The way follows the health too closely bound uply to swim. Such as underwater stroke being a swimming way that a technological difficulty is with greater coefficient, it requires higher to people's swimming technology and body condition, without the adequate preparation, will possibly cause the injury to human body, the serious one will even jeopardize the life. At the time of underwater stroke, people need longer time to hold the breath. In this period, the thorax pressure will rise temporarily, will hinder the intravenous blood reflux heart. Meanwhile, because the heart is strengthened to lung and resistance of outputting the blood all over, also will cause the temporary obstacle of the blood circulation, make the head present the temporary ischemic and oxygen deficiency state. At the time of underwater stroke, people's breath will stop temporarily, it is unable to carry on abundant air exchange in the lung, if time too long, can lead to the fact blood and oxygen saturation lever drop by a wide margin, thus cause body some histoorgan and head oxygen deficiency. Under this kind of state, if the physique is relatively bad, acute cardiovascular vessel disease appears to break out suddenly very easily. If has not made adequate preparations or body constitution is relatively bad, especially vascular disease patient of heart brain, should not swim underwater at will.


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