期刊
BIOLOGICAL RESEARCH FOR NURSING
卷 11, 期 3, 页码 261-268出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1099800409341175
关键词
autonomic nervous system; gender; heart rate variability; preterm infant; spectral analysis
类别
资金
- NCRR NIH HHS [M01 RR000082] Funding Source: Medline
- NINR NIH HHS [P20 NR007791] Funding Source: Medline
- NATIONAL CENTER FOR RESEARCH RESOURCES [M01RR000082] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF NURSING RESEARCH [P20NR007791] Funding Source: NIH RePORTER
The purpose of this study was to longitudinally describe changes in heart rate variability (HRV) from 28 to 34 weeks postmenstrual age (PMA). A convenience sample of 31 low-risk preterm infants participated. HRV was quantified using a spectral analysis of heart periods and recorded during seven weekly test sessions from an electrocardiogram (ECG) signal. The total range of frequency components (0.04-2.0 Hz), high-frequency (HF) components (0.30-1.3 Hz), and ratio of low-to-high frequency (LF/HF) components (0.04-0.20/0.30-1.3 Hz) were measured. A mixed general linear model analysis revealed no significant change over weekly test sessions for the total, the high, and the ratio of LF/HF components. A significant interaction effect was, however, noted in the HF components for test session x gender (df = 1; F = 4.85; p = .030). With increasing age, the HF components for females increased or displayed a pattern of HRV indicative of a more mature autonomic nervous system (ANS). Study findings warrant further investigation of the impact of gender on normative descriptions of HRV.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据