When you start a run or race too fast, all of your physiological systems spike. Your heart rate, body temperature, and respiration rate all rise, and sweat production increases. It's the physiological equivalent of revving your engine. You can maintain these heightened physiological levels for a short time, but if you don't soon back off on the accelerator, fatigue will set in.
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your reserve heart rate 您的储备心脏率 ; 你储备心率 ; 你储备的心率
The sense of excitement and tension levels rise suddenly though, as does your heart rate, as you move closer to them.
然而，当你靠近他们时，兴奋和紧张的感觉会突然增强，心率也会随之加快。
Multiply this number by 6 to get your heart rate per minute.
将这个数字乘以6就得到了你每分钟的心率。
Pump your arms to increase your heart rate.
挥动你的手臂提高你的心律。
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