Blood pressure tracking systems and their application to biofeedback.

Area of Science:

• Biomedical Engineering
• Physiological Monitoring
• Biofeedback Technology

Background:

• Accurate blood pressure (BP) monitoring is crucial for clinical diagnostics and biofeedback research.
• Existing methods for continuous BP tracking can be invasive or lack precision.
• Development of automated, non-invasive BP tracking systems is essential for advancing biofeedback applications.

Purpose of the Study:

• To describe two novel automatic electronic systems for tracking systolic and diastolic blood pressure (BP).
• To evaluate the utility of these systems in biofeedback experiments.
• To present a detailed methodology for automated BP measurement using Korotkoff sounds.

Main Methods:

• Development of two distinct electronic systems utilizing an arm cuff and microphone to detect Korotkoff sounds.
• System 1: Intermittent cuff inflation/deflation (45s each) with pressure adjustments based on Korotkoff sound occurrence for BP tracking.
• System 2: Rapid, repeated cuff inflations (5s) to approximate BP, with automated adjustments based on Korotkoff sound counts for continuous monitoring.

Main Results:

• Both developed electronic systems successfully tracked blood pressure (BP).
• The systems demonstrated reliable performance in biofeedback experimental settings.
• The described methods allow for automated and precise measurement of BP parameters.

Conclusions:

• Automated electronic systems can effectively track blood pressure using Korotkoff sounds and an arm cuff.
• These systems provide valuable tools for biofeedback applications requiring precise BP monitoring.
• The presented technologies offer advancements in non-invasive physiological measurement for research and potential clinical use.