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NCT Number: NCT07743892

Obstructive Sleep Apnea and Body Awareness

Obstructive Sleep Apnea Syndrome (OSAS) is a chronic disease characterized by intermittent hypoxia and sleep fragmentation resulting from recurrent upper airway obstructions. The physiological and neurocognitive changes caused by the disease can affect how individuals perceive and interpret bodily sensations. Although body awareness plays a significant role in the perception and management of symptoms, its relationship with clinical parameters in individuals with OSAS has not been sufficiently investigated. Therefore, the aim of our study is to examine the relationship between body awareness and respiratory function, disease severity, fatigue, shortness of breath, and sleep quality in OSAS patients.

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Key information

Conditions

Obstructive Sleep Apnea (OSAS) Apnea Dyssomnias Nervous System Diseases Respiration Disorders Respiratory Tract Diseases Sleep Apnea Syndromes Sleep Apnea, Obstructive Sleep Disorders, Intrinsic Sleep Wake Disorders

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Karabük Training and Research Hospital

Karabük, Turkey (Türkiye)

Location status: Recruiting

Location contact

Musa Güneş, PhD

CONTACT

[email protected]

+90 370 418 9081

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Receiving a diagnosis of OSA after polysomnography,
  • Having an Apnea-Hypopnea Index ≥5 for OSA,
  • Volunteering to participate in the study.

Exclusion criteria

  • Having severe orthopedic, neurological, or cardiac diseases,
  • Having a diagnosed lung disease,
  • Having a previous or current history of psychiatric or neurological disorders,
  • Not voluntarily participating in the study.

Treatment and study plan

Primary outcomes

  1. Body awareness

    Time frame: Baseline

    The Body Awareness Questionnaire (BAQ) will be used to assess individuals' body awareness. The scale score ranges from 18 to 26, with higher scores indicating higher awareness.

  2. Dyspnea

    Time frame: Baseline

    Dyspnea is assessed with the modified Medical Research Council (mMRC) dyspnea scale. As the score increases, shortness of breath increases.

  3. Disease severity

    Time frame: Baseline

    The evaluation will be based on the Apnea/Hypopnea index measured by polysomnography. An Apnea-Hypopnea Index >5 indicates Obstructive Sleep Apnea Syndrome.

  4. Fatigue severity

    Time frame: Baseline

    Fatigue will be assessed using the Fatigue Severity Scale. A score of 36 or higher indicates severe fatigue.

  5. Sleep quality

    Time frame: Baseline

    Sleep quality will be assessed using the Pittsburgh Sleep Quality Index (PUKI). The total score ranges from 0 to 21, and a score above 5 indicates poor sleep quality.

  6. Pulmonary function (Forced vital capacity (FVC)

    Time frame: Baseline

    Pulmonary function will be evaluated using the spirometry, according to American Thoracic Society and European Respiratory Society criteria. Forced vital capacity (FVC) will be measured.

  7. Pulmonary function (Forced expiratory volume in the first second (FEV1)

    Time frame: Baseline

    Pulmonary function will be evaluated using the spirometry, according to American Thoracic Society and European Respiratory Society criteria. Forced expiratory volume in the first second (FEV1) will be measured.

  8. Pulmonary function (FEV1 / FVC)

    Time frame: Baseline

    Pulmonary function will be evaluated using the spirometry, according to American Thoracic Society and European Respiratory Society criteria. FEV1 / FVC will be measured.

  9. Pulmonary function (Flow rate 25-75% of forced expiratory volume (FEF 25-75%))

    Time frame: Baseline

    Pulmonary function will be evaluated using the spirometry, according to American Thoracic Society and European Respiratory Society criteria. Flow rate 25-75% of forced expiratory volume (FEF 25-75%) will be measured.

  10. Pulmonary function (Peak flow rate (PEF))

    Time frame: Baseline

    Pulmonary function will be evaluated using the spirometry, according to American Thoracic Society and European Respiratory Society criteria. Peak flow rate (PEF) will be measured.

Study contacts

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

Musa Güneş, PhD

CONTACT

[email protected]

+90 370 418 9081

Sponsors and collaborators

Lead sponsor

Karabuk University

Other

Registry information

Official study title

The Relationship Between Body Awareness and Clinical Parameters in Patients With Obstructive Sleep Apnea

Important dates

Study start
2026
Primary completion
2027
Study completion
2027
First posted
Aug 4, 2026
Registry last updated
Aug 4, 2026

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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