Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 1997 Mar;14(1):38-41.

[Spectral analysis of R-R intervals in adolesent persons during mental stress].

Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi

[Article in Chinese]
D Zheng, L Shen, G Wu, Y Jiang, Y Zhou, W Wang

PMID: 9817663

Abstract

In this study, power spectrum analysis of the autoregressive model was used to quantitatively estimate the power spectrum of R-R intervals in adolesent during the state of the mental stress. The power spectrum density of the lower frequency (HF: 0.05-0.15 Hz) and the high frequency (HF: 0.15-0.5 Hz) component were acquired. The results showed that during the mental stress the HF component decreased significantly (P < 0.001) while the LF component increased relatively and the center frequency of the HF increased remarkably (P < 0.001). This suggests that the spectral analysis of heart rate variability (R-R interval) offers an efficient non-invasive method to assess the autonomic nerve activity of cardiovascular system during the stress condition.

MeSH terms

• Adult
• Electrocardiography* / methods
• Female
• Heart Rate
• Humans
• Male
• Signal Processing, Computer-Assisted*
• Stress, Psychological / physiopathology

Publication Types

• English Abstract
• Journal Article