pulse improvement threshold

例句：

1. 1. The doctor set apulse improvement threshold for the patient'srecovery.
   医生为病人设定了一个脉搏改善阈值，以监测其恢复情况。
2. 2. The studyfound that the pulse improvement threshold for exercisewas higher in women than in men.
   研究发现，锻炼的脉搏改善阈值在女性中比男性高。
3. 3. The patient's heartrate gradually returned to normal after reaching thepulse improvement threshold.
   患者达到脉搏改善阈值后，心率逐渐恢复正常。