NCT03725189

Photophlethysmography Evaluation of Pulse Waveform

Pilot Study of the Effect of Physical Activity on Pulse Waveform Monitored by a Novel Photophlethysmographic Device

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 42 (actual)
• Sponsor: University of California, Los Angeles · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Accepted

Summary

Aim 1. To explore a novel, non-invasive PPG technology for purposes of monitoring heart rate variability and pulse waveform by harmonic resonance analysis. Aim 2. To analyze collected data to determine whether it provides useful information about other measures of underlying health.

Detailed description

The proposed study will first investigate whether a novel PPG device will be able to measure the harmonic-analysis indexes of the blood pressure waveform (BPWs) to provide information about arterial pulse transmission (by monitoring arterial pulse waveform, Cn) and cardiovascular regulatory activities (by monitoring coefficients of variation, CVn). Secondarily, data on Cn and CVn could be useful for detecting the arterial elastic properties induced by external stimulation such as exercise, cold stimulation, mental stress, acupuncture, medications such as antihypertensive drugs, or pathological factors such as metabolic syndrome, and breast cancer. The collected data may thus provide information about underlying health. Photoplethysmography (PPG) is a non-invasive optical technique for evaluating the pulse and hemodynamic changes in frequency. The device obtains a volumetric measurement of an organ via optical illumination (e.g LED). PPG has been used to determine the PaO2, heart rate, and blood pressure (systolic blood pressure, SBP and diastolic blood pressure, DBP) at fingertip and harmonic proportion at fingertip or from the radial artery waveform at the wrist. However, to the investigator's knowledge, this is the first preliminary study to determine the effects of physical activity on harmonic proportion evaluating by PPG at fingertip. Ultimately, this data may help to develop a non-invasive, external device that could rapidly detect information about cardiovascular and underlying health.

Conditions

• Healthy

Interventions

Type	Name	Description
DEVICE	PPG during exercise	PPG use for pulse waveform evaluation of healthy exercise group

Timeline

• Start date: 2019-05-01
• Primary completion: 2020-12-01
• Completion: 2020-12-01
• First posted: 2018-10-30
• Last updated: 2020-12-10

Locations

1 site across 1 country: Taiwan