Contact-free measurement of heart rate, respiration rate, and body movements during sleep
Contact-free measurement of heart rate, respiration rate, and body movements during sleep
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DOI：
10.3758/bf03192806
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发表时间：
2006-08-01
影响因子：
5.4
通讯作者：
Schierz, Christoph
中科院分区：
文献类型：
--
作者：
Brink, Mark;Mueller, Christopher H.;Schierz, Christoph
我们描述了一种非接触的方法，用于动态测量人类的基本睡眠生理参数，特别是涉及睡眠研究和睡眠干扰的实地研究。这种方法使用安装在床柱下的四个高分辨率力传感器来跟踪休息或睡在床上的人的身体运动、呼吸和心脏动作。每次心跳时身体的后坐运动，即所谓的心跳平衡效应，以及呼吸时胸部的升降，会导致床和受试者的重心发生非常微小的移动，这些移动反映在四个传感器上的力分布的变化中。心脏和呼吸参数以及受试者的运动活动可以从传感器信号中计算出来。电极或其他类型的换能器都不与受试者直接接触，这是该技术相对于传统方法的主要优势。进行了实验室实验，评价了该方法的有效性和实用性。这种方法已经被证明是足够的，特别是对于长时间的自动和无人值守的睡眠数据收集。
We describe a noncontact method for the ambulant measurement of basic sleep physiology parameters in humans, particularly for field studies involving sleep research and sleep disturbances. This method traces the body movements, respiration, and heart action of a person at rest or asleep on a bed, using four high-resolution force sensors installed under the bedposts. The recoil movement of the body at each heartbeat, known as the cardioballistic effect, as well as the lifting and lowering of the thorax, while breathing, causes very small shifts of the center of gravity of the bed and the subject These shifts are reflected in the altering force distributions across the four sensors. Cardiac and respiratory parameters and the subject's movement activity can be calculated from the sensor signals. Neither electrodes nor other kinds of transducers are in direct contact with the subject, which is the main advantage of this technique over conventional methods. Laboratory experiments were carried out to estimate validity and practicability. The method has been found to be adequate, especially for automated and unattended sleep-data collection over long periods of time.