Obstructive Sleep Apnea and Body Awareness

NCT07743892 | Recruiting

• 1 other identifier: Karabuk_005
• Study Type: observational
• Target: 47
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Obstructive Sleep Apnea (OSAS)

Outcome Measures

Primary Outcomes (10)

• Body awareness

  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.

  Baseline

• Dyspnea

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

  Baseline

• Disease severity

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

  Baseline

• Fatigue severity

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

  Baseline

• Sleep quality

  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.

  Baseline

• Pulmonary function (Forced vital capacity (FVC)

  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.

  Baseline

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

  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.

  Baseline

• Pulmonary function (FEV1 / FVC)

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

  Baseline

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

  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.

  Baseline

• Pulmonary function (Peak flow rate (PEF))

  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.

  Baseline

Study Arms (1)

Obstructive Sleep Apnea Syndrome Group

Patients diagnosed with Obstructive Sleep Apnea Syndrome

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Patients with obstructive sleep apnea syndrome

You may qualify if:

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

You may not qualify if:

• 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.

Sponsors & Collaborators

• Karabuk University: lead

Study Sites (1)

Karabük Training and Research Hospital

Karabük, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea Syndromes; Apnea; Respiration Disorders; Respiratory Tract Diseases; Sleep Disorders, Intrinsic; Dyssomnias; Sleep Wake Disorders; Nervous System Diseases

Study Officials

• Musa Güneş, PhD

  Karabuk University

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Musa Güneş, PhD

CONTACT

+90 370 418 9081; musagunes@karabuk.edu.tr

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator, PhD

Study Record Dates

• First Submitted: July 28, 2026
• First Posted: August 4, 2026
• Study Start: May 21, 2026
• Primary Completion (Estimated): May 21, 2027
• Study Completion (Estimated): June 30, 2027
• Last Updated: August 4, 2026

Record last verified: 2026-07

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)