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1.运动时心率不增活动量大时,心脏的排血量会明显增加,心率加快。运动时心率不能加快时,表现为人体明显供血不足,即会出现头晕等不适,可能是心脏病的早期信号。2.运动中出现心绞痛运动导致冠状动脉痉挛而产生心绞痛。出现心绞痛时应立即停止运动,就地休息,舌下立即含服硝
1 heart rate does not increase during exercise Large amount of movement, the cardiac output will be significantly increased, heart rate. When exercise can not speed up the heart rate, manifested as obvious lack of blood supply to the body, that will appear dizziness and other discomfort, may be an early sign of heart disease. Angina movement during exercise leading to coronary artery spasm and angina. Angina pectoris should immediately stop exercising, rest on site, immediately sublingual nitric oxide