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Evaluation of Respiratory Muscle Sarcopenia in Obstructive Sleep Apnea Syndrome

Evaluation of Respiratory Muscle Sarcopenia in Obstructive Sleep Apnea Syndrome

Status
Enrolling by invitation
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06783998
Acronym
RMS-OSAS
Enrollment
150
Registered
2025-01-20
Start date
2025-05-15
Completion date
2026-04-15
Last updated
2025-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructive Sleep Apnea (OSAS)

Keywords

Obstruktive sleep apnea, sarcopenia, respiratory muscle

Brief summary

OSAS is a disease characterized by repeated interruptions and restarts of breathing during sleep. Respiratory muscle sarcopenia is a condition in which the muscle strength of the diaphragm and other respiratory auxiliary muscles decreases, resulting in a decrease in breathing effort. Decreased respiratory effort is an important indicator of OSAS. Age, presence of chronic disease, and obesity increase the presence and severity of respiratory sarcopenia. If OSAS is left untreated, it leads to cardiovascular diseases, dementia, Alzheimer's and even death in early adulthood. In recent years, studies have shown that continuous positive airway pressure (CPAP), as well as healthy behavior development, preventive health and exercise measures, are important in the management of these diseases. There is no research in the literature on the evaluation of respiratory muscle sarcopenia in OSAS patients. This study aims to evaluate respiratory muscle sarcopenia in OSAS based on a concrete value reflecting respiratory muscle strength and/or volume.

Detailed description

In the study, respiratory muscle sarcopenia will be evaluated in OSAS patients. It will be evaluated whether the expiratory pressure value, peek flow meter value and 6-minute walking distance are predictors of respiratory sarcopenia for OSAS.

Interventions

None listed

Sponsors

Tarsus University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosed with normal-mild-medium-severe OSAS * 18 years and above * Turkish speaking patients will be included.

Exclusion criteria

* Pregnancy, * Latent autoimmune diabetes, * Chronic renal failure, * Active or serious infections, * Liver failure, * Recent major cardiovascular events, * Unstable angina, heart failure (NYHA III-IV), * Patients with neurological or musculoskeletal disorders that create limitations in walking and performing tests

Design outcomes

Primary

MeasureTime frameDescription
Respiratory function test1 yearTo evaluate pulmonary functions(FEV1/FVC ve FEV1 ), it will be measured in a sitting position with a Spirolab III brand spirometer according to ATS/European Respiratory Society (ERS) criteria.
Anthropometric measurement1 yearWaist circumference, hip circumference will be measured, waist-hip ratio will be calculated.
BOdy mass measurement1 yearBody weight,fat-free mass (FFM) and appendicular skeletal muscle mass (ASMM) and skeletal muscle mass expressed in kilograms will be measured by bioelectrical impedance.
Hand Grip strength1 yearJamar hand dynamometer, which is recommended by the American Association of Hand Therapists (AETD) and has been found to have high validity and reliability in many studies and is therefore considered the gold standard, will be used to measure hand grip strength.
Walking speed1 yearWalking speed will be measured with the 4 Meter Walking Speed Test (4MYHT).
Respiratory muscle strength:1 yearRespiratory muscle strength will be evaluated with a portable, electronic mouth pressure measurement device.
Expiratory flow rate1 yearPeak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) and peak flow measurement, will be measured with a PEFmeter (MSA 100 PEFmeter), a small, hand-held device used to monitor a person's ability to breathe air.

Secondary

MeasureTime frameDescription
Functional capacity1 yearFunctional exercise capacity will be evaluated with the 6-minute walk test (6MWT)

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026