Is photoplethysmography-derived pulse shape useful for fall detection?
Is photoplethysmography-derived pulse shape useful for fall detection?
复制标题
光电体积描记法衍生的脉冲形状对于跌倒检测有用吗？
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
C. Eccleston
中科院分区：
文献类型：
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作者：
Jason Leake;N. Harris;E. Keogh;C. Eccleston
福尔斯是老年人严重受伤的常见原因。可通过使用跌倒探测器减轻伤害。然而，它们远非理想，并且对于检测到的每个真实的跌倒产生大量的假警报。本文描述了一个实验，以检查是否跌倒检测器的可靠性可能会提高使用光电容积脉搏波，它评估心率和微血管组织中的血流，作出推断的身体位置。结果表明，身体位置和脉搏形状之间的相关性。然而，该影响很小，并且与安装有传感器的臂的位置的影响具有相似的大小。需要进一步的工作来更好地了解手臂位置如何影响脉搏形状，以及这些结果在多大程度上适用于老年人。
Falls are a common source of serious injury for elderly people. The harm can be mitigated by using a fall detector. However they are far from ideal and produce a large number of false alarms for every real fall detected. This paper describes an experiment to examine whether the reliability of fall detectors might be improved by using photoplethysmography, which evaluates heart rate and blood flow in microvascular tissue, to make inferences about the body position. The results show a correlation between body position and pulse shape. However the effect is small and is of similar size to the effect of the position of the arm on which the sensor is mounted. Further work is needed to better understand how arm position affects pulse shape and the extent to which these results may be applicable to elderly people.