The American heart Association's heart rate chart for calculating your workout zone is much broader in scope.
美国心脏协会的心脏频率表中的锻炼区间的范围更加大。
2
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.
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%。
3
With Greek bond yields off the chart, the lack of investor confidence in the ability of Greece to avoid a default on its debt and remain in the euro zone weighed on market sentiment.