發表於 2008-7-5 22:47:38
原帖由 clerkb 於 2008-7-5 20:10 發表
其實心跳率低真係吾一定代表心脏好的. 正常健康的心脏, 經過心肺運動的鍛練, 心力會大左, 所以不需要用高心率亦可得到相等的氧氣同血液到全身. 但心臟先天係弱(有問題)的 , 心跳率亦會低 , 因為不夠力p ...
You are partially right.
However if "心臟先天係弱", heart beat will actually be HIGHER. If your definition of weak is about heart muscles and capacity.
Or, the electrical pulse which control the heart has problem, THEN the heart beats LESS than it should, and the guy will feel weak and exhausted easily, or even feel dizzy very often.
Another way is, the electrical pulse have problem (think of the nerves and brain is like a control circuit) and the heart beats actually fructurate even when you rest... (like this mintues you beat @ 53, then it increases until 90, then it starts to decrease back...).