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Test-Retest Reliability And Validation For End-Tidal Carbon Dioxide Measurement (PetCO2) During Rest And Low-Loaded Steady State Work Using A Portable Capnograph.

NCT07326449 · Status: ENROLLING_BY_INVITATION · Type: OBSERVATIONAL · Enrollment: 20

Last updated 2026-01-08

No results posted yet for this study

Summary

The goal of this observational study is to investigate exhaled carbon dioxide measuring during rest and low-loaded work using a portable device (capnograph) and standard of care apparatus during a cardiopulmonary exercise test (CPET) in healthy volunteers. The study aims to answer:

How reliable is exhaled end-tidal carbon dioxide measurement for an individual over time using both standard of care apparatus and a portable device during an ergometer test?

Do the measurements correlate between the portable device and standard of care apparatus?

How do changes in breathing instructions and placement of sampling cannula affect the measurements from the portable device (capnograph)?

How is the reliability over time of other well established values from a cardio pulmonary exercise test?

Participants will be asked to perform a modified cardiopulmonary exercise test on an ergometer twice, separated in time (1-4 weeks). Measurements are sampled alternating standard of care apparatus and a portable capnograph at rest and during low-loaded work.

Conditions

  • Cardiopulmonary Exercise Test
  • End-Tidal Carbon Dioxide
  • VO2max
  • Ventilatory Physiology

Sponsors & Collaborators

  • Linkoeping University

    lead OTHER_GOV

Principal Investigators

  • Kristofer Hedman, PhD. Associate professor · Linkoeping University

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-06-06
Primary Completion
2026-01-19
Completion
2026-02-28

Countries

  • Sweden

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07326449 on ClinicalTrials.gov