Evaluation of SpO2 Measurement Using a Smartwatch

Czech Technical University in Prague24 enrolled

Overview

The aim of the study is to compare the measurement of peripheral blood oxygen saturation using a smartwatch with a medical-grade pulse oximeter.

Recently, wearables, like smartwatches, have been gaining new possibilities in monitoring biological signals and they are used for home monitoring of health conditions. The newest models of smartwatches even measure peripheral blood oxygen saturation (SpO2). The study aims to compare the measurement of peripheral blood oxygen saturation using the latest smartwatch with a medical-grade pulse oximeter under the condition of normobaric hypoxia. Healthy participants will breathe oxygen-reduced mixtures (the hypoxic gas mixture of 12% O2 and 88% N2 and the hypercapnic and hypoxic gas mixture of 12% O2, 5% CO2, and 83% N2), which will temporarily reduce their blood oxygen saturation. SpO2 measurements will be taken by hand from the watch and the pulse oximeter simultaneously. The agreement of the measurements of both devices will be evaluated.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

SINGLE

Enrollment

Conditions

Hypoxia Hypercapnia

Interventions

Hypoxic gas mixtureOTHER

Gas mixture of 12% O2 and 88% N2 for five minutes.

Hypercapnic and hypoxic gas mixtureOTHER

Gas mixture of 12% O2, 5% CO2, and 88% N2 for five minutes.

SpO2 measurementOTHER

Two SpO2 measuring devices are active simultaneously during measurement.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 30 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * healthy volunteers from the Czech Technical University Exclusion Criteria: * pregnancy * severe cardiovascular conditions * severe asthma or other severe respiratory conditions * injury to the upper limbs or hands that could affect the peripheral perfusion * diabetes * hypotension or hypertension

Locations (1)

Faculty of Biomedical Engineering, Czech Technical University in Prague

Kladno, Czechia

Outcomes

Primary Outcomes

Similarity of SpO2 readings

The agreement of SpO2 measurements of both monitoring devices will be evaluated.

Time frame: 2 hours

Data from ClinicalTrials.gov

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