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Morphology variability of radial pulse wave during exercise.
Lisheng Xu1, Yang Yao2, Hao Wang2
1Sino-Dutch Biomedical and Information Engineering School, Northeastern University, Shenyang 110819, China Key Laboratory of Medical Image Computing (Northeastern University), Shenyang, Ministry of Education, 110004, China.
Bio-Medical Materials and Engineering
|September 18, 2014
Summary
This study analyzed radial pulse wave morphology changes during exercise. Key findings show synchronized heart rate and pulse rate changes, with significant shortening of the diastolic phase and altered dicrotic notch characteristics during physical activity.
Area of Science:
- Cardiovascular Physiology
- Biomedical Engineering
- Exercise Physiology
Background:
- Pulse wave analysis provides insights into cardiovascular system function.
- Understanding pulse wave variability during exercise is crucial for comprehensive cardiovascular assessment.
Purpose of the Study:
- To investigate the morphological variability of the radial pulse wave during exercise.
- To analyze changes in pulse wave parameters in conjunction with electrocardiography (ECG) during physical activity.
Main Methods:
- Collected synchronized radial pulse wave data from 30 subjects using wrist sensors and ECG.
- Performed data preprocessing and feature point extraction for detailed analysis.
- Analyzed variability in pulse wave and ECG parameters during rest and exercise states.
Main Results:
- Observed synchronous changes in pulse rate (PR) and heart rate (HR).
- Found that both systolic and diastolic phases of the radial pulse shorten during exercise, with a more pronounced effect on the diastolic phase.
- Noted a decrease in the amplitude of the dicrotic notch, sometimes becoming negative, and the fading of the tidal wave during exercise.
Conclusions:
- Radial pulse wave morphology significantly changes during exercise, reflecting dynamic cardiovascular adjustments.
- The study highlights specific alterations in pulse wave phases and features that are indicative of physiological responses to physical exertion.
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