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Smartphone-Based Use of Phonocardiography Technique for Estimating Heart Rate and Heart Rate Variability: Performance Study
Sponsor: The University of Hong Kong
Summary
This study aims to investigate the use of heart sound recordings, or phonocardiograms, recorded with smartphones' built-in microphones and accessory microphones to estimate heart rate (HR) and heart rate variability (HRV). HR refers to the number of heart beats per minute, while HRV refers to the variation in the intervals between heart beats. Participants will have their heart sounds (phonocardiograms) recorded before and after exercise, and electrocardiogram (ECG) and photoplethysmogram (PPG) data recorded before, during, and after exercise to induce a wide range of HR. Researchers will match the phonocardiograms, ECG, and PPG data to create a database for use in future training and testing of algorithms (including artificial intelligence (AI)).
Key Details
Gender
All
Age Range
18 Years - 69 Years
Study Type
OBSERVATIONAL
Enrollment
50
Start Date
2025-03
Completion Date
2025-07
Last Updated
2025-02-26
Healthy Volunteers
Yes
Conditions
Interventions
Computer algorithms
Collection of computer algorithms called ausculto® that is designed to perform heart sound analysis to estimate heart rate and heart rate variability
Exercise
Participants will be requested to exercise to raise their HR over the resting range while heart-related physiological signals are collected.