一旦你突破80%的最高心率，就进入了速度训练。
Once you step over about 80 percent of your maximum heart rate, you're training for speed.
保持最高心率。
在第三个1英里结束时，我的心率攀升至164，约为最高心率的91%。
At the end of the third mile, my heart rate reached 164, about 91 percent of my Max.
该协会的表中仍然沿用220减去年龄的算法，但是讲区间扩大到了最高心率的50%到85%。
The AHA's chart still USES the 220 minus age formula, but has a wider zone of 50 to 85 percent of your Max heart rate.
但是当放松时，心率的可变性升到最高，呼气时变慢，吸气时加快。
But when relaxed, variability is maximized, slowing down as you breathe out and speeding up as you breathe in.
但是当放松时，心率的可变性升到最高，呼气时变慢，吸气时加快。
But when relaxed, variability is maximized, slowing down as you breathe out and speeding up as you breathe in.
应用推荐