Objective: Use heart rate variability index (HRVI) to provide prognostic value in patients with acute myocardial infarction (AMI).

目的：使用心率变异指数(HRVI)对急性心肌梗死(ami)患者的预后进行判断。

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Objective: To assess the instructional value of heart rate variability index (HRVI) used for acute myocardial infarction (AMI) patients under the early rehabilitation exercise.

目的：评价心率变异指数对急性心肌梗死(ami)患者进行早期康复锻炼的指导意义。

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Objective: to explore the change of activities of the cardiac autonomic nervous system in the EMG biofeedback with the quantified index of heart rate variability (HRV).

目的：应用心率变异性的频域指标探讨肌电生物反馈中的心脏自主神经系统功能活动的量化改变。

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The Zen Index uses heart-rate variability to quantify stress levels in a simplified manner, according to the company.

WSJ: Review of Tink�� and HeartMath Inner Balance Sensor for iOS

Heart-rate variability, says Dr Stein, is a good index of the degree of control an individual has over his autonomic nervous system (which controls many of the internal organs).

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