人体心率变异性功率谱的微机在线评估

Microcomputerized on-line evaluation of heart rate variability power spectra in humans.

作者信息

Kamath M V, Fallen E L, Ghista D N

机构信息

Department of Medicine and Engineering Physics, McMaster University, Hamilton, Ontario, Canada.

出版信息

Comput Biol Med. 1988;18(3):165-71. doi: 10.1016/0010-4825(88)90043-1.

DOI:10.1016/0010-4825(88)90043-1

PMID:3396337

Abstract

The heart rate variability power spectra is computed using an on-line microcomputer system. In normal subjects (n = 10), standing and post-exercise states demonstrated statistically significant increases (p less than 0.05) in the peak power at 0.1 Hz. During exercise, the peak power at 0.1 Hz was reduced significantly (p less than 0.05). In patients with myocardial infarction, either the peak at 0.1 Hz or the peak associated with breathing frequency was augmented. Our system is mobile and is useful especially when on-line heart rate variability power spectra are required in experimental or clinical situations.

摘要

心率变异性功率谱通过在线微机系统计算得出。在正常受试者（n = 10）中，站立和运动后状态下，0.1 Hz处的峰值功率有统计学显著增加（p < 0.05）。运动期间，0.1 Hz处的峰值功率显著降低（p < 0.05）。在心肌梗死患者中，0.1 Hz处的峰值或与呼吸频率相关的峰值有所增加。我们的系统便于移动，尤其在实验或临床情况下需要在线心率变异性功率谱时很有用。