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| Name | Class |
|---|---|
| National Taiwan Normal University | OTHER |
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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| PPG Group | Experimental | Testing of PPG device in healthy adult population doing cardiovascular exercise |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| PPG during exercise | Device | PPG use for pulse waveform evaluation of healthy exercise group |
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| Measure | Description | Time Frame |
|---|---|---|
| Harmonic measures (C1-C10) by PPG device | C1-C10 by PPG device | 70 minutes on Day 1 for resting, exercise, and cool down measurements |
| Measure | Description | Time Frame |
|---|---|---|
| Demographic Information | Collected from patients by questionnaire | Day 1 |
| General health | General health questionnaire | Day 1 |
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4) Inclusion criteria:
5) Exclusion criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ka-Kit Hui, MD | University of California, Los Angeles | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| National Taiwan Normal University | Taipei | 106 | Taiwan |
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| Weight | Weight | Day 1 |
| Height | Height | Day 1 |
| Body mass index (BMI) | Body mass index (BMI) | Day 1 |
| Diastolic blood pressure (DBP) | iHealth Feel Wireless blood pressure monitor | 70 minutes on Day 1 for resting, exercise, and cool down measurements |
| Systolic blood pressure (SBP) | iHealth Feel Wireless blood pressure monitor | 70 minutes on Day 1 for resting, exercise, and cool down measurements |
| HRV measures (SDNN, HF, LF and HF/LF parameters) | emWave Pro plus, SDNN indicates standard deviation of normal to normal R-R intervals, where R is the peak of a QRS complex (heartbeat). LF and HF represent power in low- and high-frequency ranges | 70 minutes on Day 1 for resting, exercise, and cool down measurements |
| Heart rate and Heart Rate Variation | emWave Pro Plus | 70 minutes on Day 1 for resting, exercise, and cool down measurements |