pulse to bar ratio

例句：

1. 1.The doctor measured the patient's pulse to arm ratio during the examination.
   医生在检查时测量了患者的脉搏至臂比率。
2. 2.The study found that a higher pulse to bar ratio was associated with better health outcomes.
   研究发现，更高的脉搏至臂比率与更好的健康结果相关联。
3. 3. The researcher used this ratio to analyze the heart rate variability in different populations.
   研究者使用这个比率来分析不同人群中的心率变异性。