Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Correlation between ECG and Cardiac Cycle01:25

Correlation between ECG and Cardiac Cycle

6.2K
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
6.2K
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)01:19

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

732
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...
732

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Systemic Rearrangement of the Heart Rhythm in the Process of Organism Aging: Spectral Analysis.

Doklady. Biochemistry and biophysics·2025
Same author

Age-Related Changes in Heart Rate Variability from the Neonatal Period to Adulthood.

Doklady. Biochemistry and biophysics·2024
Same author

Frequency-Dependent Variability of Pulse Wave Transit Time: Pilot Study.

Doklady. Biochemistry and biophysics·2024
Same author

Skin Microhemodynamics and Mechanisms of Its Regulation in Type 2 Diabetes Mellitus.

Biophysics·2022
Same author

Localization of Mechanisms of Amplitude-Frequency Modulation of Pulse Blood Perfusion of the Soft Tissue Microvasculature. Pilot Study.

Doklady. Biochemistry and biophysics·2022
Same author

[Effects of the Airway Obstruction on the Skin Microcirculation in Patients with Bronchial Asthma].

Vestnik Rossiiskoi akademii meditsinskikh nauk·2018

相关实验视频

Updated: Jul 13, 2025

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
08:12

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

Published on: June 5, 2019

19.9K

基于希尔伯特-黄方法的心率变量的光谱分析.

A A Grinevich1, N K Chemeris2

  • 1Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia. grin_aa@mail.ru.

Doklady. Biochemistry and biophysics
|October 13, 2023
PubMed
概括

希尔伯特-黄法提供了一种分析心率变化 (HRV) 的新方法,揭示了不同的光谱成分,以更好地理解心脏调节系统.

科学领域:

  • 心脏病学 心脏病学
  • 生物医学工程 生物医学工程
  • 非侵入性生理学 非侵入性生理学

背景情况:

  • 心率变化 (HRV) 分析对于评估心脏自主调节至关重要.
  • 像里埃分析这样的当前方法在固定频段内提供平均的光谱参数.
  • 在精确定义监管系统对HRV影响的边界方面存在局限性.

研究的目的:

  • 在HRV分析中评估希尔伯特-黄法用于光谱参数计算.
  • 为了比较希尔伯特-黄法与传统里埃分析的功能.
  • 探索用于量化HRV振荡的新方法.

主要方法:

  • 希尔伯特-黄变换用于分析HRV数据的应用.
  • 使用高斯函数识别和描述光谱元件.
  • 对HRV. 已建立的富里埃转换技术进行比较分析.

主要成果:

  • 希尔伯特-黄法确定了HRV振荡的四个不同的光谱组成部分.
  • 这些组件被高斯函数描述,表示集中能量.
  • 该研究表明,这些光谱成分之间没有严格的界限.
  • 这些组件的定量能量特征得出.
关键词:
希尔伯特黄方法 希尔伯特黄方法心血管系统的心血管系统心率变化的心率变化.波形分析波形分析.

更多相关视频

Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver
14:28

Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver

Published on: June 27, 2025

131
Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
08:22

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

Published on: April 26, 2024

1.9K

相关实验视频

Last Updated: Jul 13, 2025

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
08:12

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

Published on: June 5, 2019

19.9K
Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver
14:28

Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver

Published on: June 27, 2025

131
Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
08:22

Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis

Published on: April 26, 2024

1.9K

结论:

  • 希尔伯特-黄法提供了更详细的HRV光谱分析.
  • 已识别的光谱成分及其能量特性为新型诊断工具提供了潜力.
  • 这种方法可以补充评估心律调节的现有方法.
  • 对这些定量特征的进一步研究可以提高诊断能力.