Investigation of the Relationship Between Dysfunctional Breathing and Physical Fitness Parameters in Healty Adults

This observational study aims to investigate the relationship between dysfunctional breathing and physical fitness parameters in healthy adults aged 18-35. Participants will be evaluated using the Nijmegen Questionnaire to assess dysfunctional breathing symptoms, and their physical fitness will be measured using the ALPHA-FIT Test Battery. Respiratory muscle strength and pulmonary function will also be assessed. The findings may help healthcare professionals better understand dysfunctional breathing and develop targeted treatment programs.

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Key information

Conditions

Dysfunctional Breathing Hyperventilation Pathologic Processes Pathological Conditions, Signs and Symptoms Respiration Disorders Respiratory Aspiration Respiratory Tract Diseases Signs and Symptoms Signs and Symptoms, Respiratory

Age range

18 year–35 year

Sex eligibility

All sexes

Study type

Observational

About this study

Dysfunctional breathing (DB) is characterized by chronic alterations in the respiratory cycle, often leading to symptoms such as dyspnea, chest tightness, and hyperventilation. Despite its prevalence, DB is frequently underdiagnosed and mismanaged due to limited awareness among healthcare professionals. This cross-sectional study aims to evaluate the relationship between DB symptoms and physical fitness in healthy young adults. A total of 38 participants diagnosed with DB will be assessed at Istinye University using the Nijmegen Questionnaire, ALPHA-FIT Test Battery, spirometry, and measurements of maximum inspiratory (MIP) and expiratory (MEP) mouth pressures. Data on sociodemographic characteristics will also be collected. The results of this study are expected to support clinicians in the accurate identification of DB and provide insight for the development of personalized rehabilitation strategies that improve physical fitness and respiratory health.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Aged between 18-35 years
Healthy individuals with no known systemic, neurological, or musculoskeletal disorders
Nijmegen Questionnaire score >23 (indicative of dysfunctional breathing)
Voluntary participation with informed consent

Exclusion criteria

Diagnosed with respiratory, cardiovascular, or metabolic disease
Currently receiving physiotherapy or pulmonary rehabilitation
Regular use of medication affecting breathing or exercise capacity
Pregnancy

Treatment and study plan

Primary outcomes

Nijmegen Questionnaire Score

Time frame: Baseline

Assessment of dysfunctional breathing symptoms using the Nijmegen Questionnaire.

Secondary outcomes

ALPHA-FIT Test Battery Performance

Time frame: Baseline

Evaluation of physical fitness components such as strength, flexibility, balance, and endurance in participants.
Maximum Inspiratory Pressure (MIP) and Maximum Expiratory Pressure (MEP)

Time frame: Baseline

Measurement of respiratory muscle strength using a mouth pressure device to evaluate inspiratory and expiratory capacities.

Study contacts

Contact information is provided by the study sponsor or research team.

Elif Tunç, MSc, PhD(c)

CONTACT

[email protected]

+90 535 076 31 39

Sponsors and collaborators

Lead sponsor

Elif Tunç

Other

Registry information

Official study title

Investigation of the Relationship Between Dysfunctional Breathing and Physical Fitness Parameters in Healthy Adults

Acronym: DISFIT

Important dates

Study start: 2025
Primary completion: 2025
Study completion: 2025
First posted: Apr 24, 2025
Registry last updated: Apr 24, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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