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Related Experiment Videos

The prandial effect on the pulse spectrum

W K Wang1, T L Hsu, Y Chiang

  • 1Biophysics Laboratory, Institute of Physics, Academia Sinica, Taipei, Taiwan.

The American Journal of Chinese Medicine
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

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Meal intake significantly alters radial artery pulse spectrum, with specific harmonic changes observed. Pulse diagnosis is recommended 30 minutes to 4 hours post-meal for stable readings.

Area of Science:

  • Cardiovascular Physiology
  • Biomedical Engineering
  • Diagnostic Medicine

Background:

  • The radial artery pulse spectrum reflects cardiovascular dynamics.
  • Understanding postprandial physiological changes is crucial for accurate health assessments.

Purpose of the Study:

  • To investigate the impact of food ingestion (prandial effect) on the radial artery's pulse spectrum.
  • To identify specific harmonic changes in the pulse wave after meals.
  • To determine the optimal time window for reliable pulse diagnosis post-ingestion.

Main Methods:

  • Analysis of the pressure pulse spectrum of the radial artery.
  • Subject testing before and after meal ingestion.
  • Quantification of harmonic proportions in the pulse spectrum.

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Main Results:

  • Ingestion significantly altered the pulse spectrum.
  • Increased proportions of the 2nd and 4th harmonics were observed.
  • Decreased proportions of the 5th through 9th harmonics were noted.
  • The pulse spectrum stabilized 30 minutes post-ingestion and remained stable for 3-4 hours.

Conclusions:

  • Postprandial changes in the radial artery pulse spectrum are significant and predictable.
  • A stable period for pulse diagnosis exists between 30 minutes and 4 hours after meals.
  • These findings support timing pulse diagnosis for improved reliability and discuss physiological implications.