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Exercise Induced Bronchoconstriction and Field Tests

NCT04275648 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2025-08-26

No results posted yet for this study

Summary

Asthma and exercise induced bronchoconstriction (EIB) represent an important challenge for the athlete, and correct diagnosis is important as it affects health as well as performance with strict regulations concerning asthma medication. The primary objective of this study on elite athletes with symptoms of EIB, is to assess if EIB can be determined equally by repeated standardized and unstandardized field ECT using AsthmaTuner, and eucapnic voluntary hypernoea (EVH).

Methods: The study has an open design including elite athletes with symptoms of EIB. They will be equipped with an AsthmaTuner to perform 3-5 repeated exercise tests with AsthmaTuner in their natural training and competing environment, followed by an EVH test within four weeks after the first visit. Olympiatoppen is a national clinic in Oslo, Norway, providing health care and screening of elite athletes. At least 60 elite athletes aged 16 to 50 years with a history of EIB symptoms within the last 8 weeks will be invited to participate. The eucapnic voluntarily hyperventilation (EVH) test and two standardized field exercise test will be performed according to guidelines. In addition, the participants will be encouraged to perform unstandardized lung function tests in relation to perceived respiratory symptoms during exercise.

Conditions

  • Exercise Induced Bronchoconstriction
  • Asthma

Interventions

DIAGNOSTIC_TEST

AsthmaTuner exercise field test

AsthmaTuner consist of a a bluetooth spirometer and smartphone app with protocol for measuring lung function (FEV1) and perform 8 min exercise challenge test and a healthcare web interface.

Sponsors & Collaborators

  • Olympiatoppen, The Norwegian Olympic Sports Centre, Oslo, Norway

    collaborator UNKNOWN

  • Norwegian School of Sport Sciences

    collaborator OTHER

  • Karolinska Institutet

    lead OTHER

Principal Investigators

  • Björn Nordlund, PhD · Women's and Children's Health, Karolinska Institutet

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
16 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-12-01
Primary Completion
2021-12-30
Completion
2021-12-30

Countries

  • Norway

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 NCT04275648 on ClinicalTrials.gov