Contact-free Measurement of Heart Rate Variability via a Microwave Sensor.
Contact-free Measurement of Heart Rate Variability via a Microwave Sensor.
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通过微波传感器非接触式测量心率变异性
DOI：
10.3390/s91209572
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Wang J
中科院分区：
文献类型：
--
作者：
Lu G;Yang F;Tian Y;Jing X;Wang J
心率变异性（HRV）被广泛用于评估自主神经系统（ANS）功能。HRV可以通过心电图（ECG）记录，这是一种无创且广泛使用的方法。然而，ECG需要三个电极接触受试者的身体，这会使受试者感到紧张和不舒服，从而可能影响记录。通过微波传感器的无接触检测心跳构成了通过连续监测心脏机械收缩来确定心脏周期时间的另一种手段。这种技术可以在没有任何电极接触人体的情况下测量心跳，并在一定距离上穿透衣服，在某些情况下可以证明是HRV分析的实用基础。对比5分钟的记录表明，从心跳和心电图得出的HRV测量在时间、频域和非线性动态分析方面没有显著差异，这表明该技术可能被证明是心电图HRV分析的实用替代方案。
Measures of heart rate variability (HRV) are widely used to assess autonomic nervous system (ANS) function. HRV can be recorded via electrocardiography (ECG), which is both non-invasive and widely available. However, ECG needs three electrodes touching the body of the subjects, which makes them feel nervous and uncomfortable, thus potentially affecting the recording. Contact-free detection of the heartbeat via a microwave sensor constitutes another means of determining the timing of cardiac cycles by continuous monitoring of mechanical contraction of the heart. This technique can measure the heartbeat without any electrodes touching human body and penetrate the clothes at some distances, which in some instances may prove a practical basis for HRV analysis. Comparison of 5-minute recordings demonstrated that there were no significant differences in the temporal, frequency domains and in non-linear dynamic analysis of HRV measures derived from heartbeat and ECG, which suggested this technique may prove a practical alternative to ECG for HRV analysis.
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DOI：
10.1615/critrevbiomedeng.v28.i12.290
发表时间：
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影响因子：
--
作者：
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通讯作者：
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影响因子：
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影响因子：
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