Assessing breathing methods using sensors and body plethysmography

Agreement Between Accelerometric and Acoustic Signals Utilizing Algorithm and Body Plethysmograph in Detecting Nasal and Oral Specific Airway Resistance

Oulu University Hospital · NCT05869071

This study is testing a new sensor to see if it can accurately measure how people breathe through their mouth and nose compared to a standard breathing test, and it's for both healthy adults and those with breathing issues like asthma or COPD.

Quick facts

Study typeObservational
Enrollment20 (estimated)
Ages18 Years and up
SexAll
SponsorOulu University Hospital (other)
Locations1 site (Oulu)
Trial IDNCT05869071 on ClinicalTrials.gov

What this trial studies

This observational study aims to evaluate the accuracy of a sensor analyzing algorithm in measuring oral and nasal breathing compared to the established method of body plethysmography. Participants, including healthy adults and patients with conditions like chronic rhinosinusitis, asthma, and COPD, will undergo a short breathing protocol while their breathing is monitored using both methods. The study will collect data on general health, previous illnesses, medications, and quality of life assessments alongside the respiratory measurements.

Who should consider this trial

Good fit: Ideal candidates include healthy adults and patients diagnosed with allergic rhinitis, asthma, or chronic obstructive pulmonary disease.

Not a fit: Patients who are pregnant or have a recent history of chest or nasal surgeries may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more accurate and accessible methods for assessing respiratory conditions.

How similar studies have performed: While this approach is innovative, similar studies have not been widely reported, indicating a novel exploration in this area.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 5 healthy and asymptomatic volunteers with regard to lungs and nose
* 5 patients with allergic rhinitis or nasal polyps (diagnosis of allergic rhinitis confirmed by a PRICK test or specific Ig E antibody tests and Nasal polyposis diagnosed by an ENT specialist, with endoscopy)
* 5 patients with asthma (diagnosis of asthma based on peak expiratory flow (PEF) monitoring, spirometry, or other appropriate objective measurement methods performed by a pulmonologist
* 5 patients with Chronic Obstructive Pumonary Disease (diagnosis of COPD based on spirometry (post-bronchodilator Forced Expiratory Volume/ Forced Vital Capacity (FEV1/FVC) ratio below 0.70)

Exclusion Criteria:

* Pregnancy.
* History of surgical procedures in the chest, larynx, throat (excluding tonsillectomy), or nasal area.
* Recent illnesses or surgeries that pose a risk to the patient or prevent proper measurement (common contraindications for spirometry):
* Recent (\<1 month) myocardial infarction.
* Severe coronary artery disease with easily triggered symptoms.
* Cerebral artery aneurysm.
* Recent brain (\<4 weeks) or eye (\<1 week) surgery.
* Severe cardiac arrhythmias.
* Pulmonary tuberculosis.
* Pneumothorax
* Immediate postoperative period of lung surgery (\<1 day).
* Dementia or confusion.

Where this trial is running

Oulu

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Nasal Polyps, Asthma, COPD, Allergic Rhinitis

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.