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Effects of Diaphragm Release Technique on Sleep Quality and Respiratory Function in Coronary Artery Bypass Graft Patients

Effects of Diaphragm Release Technique on Sleep Quality and Respiratory Functions in Patients Undergoing Coronary Artery Bypass Graft Surgery

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07470034
Enrollment
30
Registered
2026-03-13
Start date
2025-08-30
Completion date
2026-02-15
Last updated
2026-03-13

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

Conditions

Cardiac Rehabilitation, Coronary Artery Bypass

Keywords

Cardiac Rehabilitation, Coronary Artery Bypass

Brief summary

This study aims to investigate the effects of diaphragm relaxation technique on sleep quality and respiratory functions in patients who have undergone coronary artery bypass graft (CABG) surgery. Two groups will be formed in the study: one group will receive standard cardiac rehabilitation, while the other group will receive diaphragm relaxation technique in addition to this. Throughout the study, patients' respiratory functions, sleep quality, respiratory muscle strength, and pain levels will be measured. These measurements will be taken from the patients...

Detailed description

This study is an interventional research investigating the effects of the diaphragm release technique on sleep quality and respiratory functions in patients undergoing minimally invasive coronary artery bypass graft (CABG) surgery. Participants will be assigned to either an intervention or a control group. Both groups will receive standard in-hospital cardiac rehabilitation, while the intervention group will additionally receive the diaphragm release technique during their hospital stay. Data will be collected using standardized tools, including pulmonary function tests (spirometry), respiratory muscle strength measurements, the Pittsburgh Sleep Quality Index, and visual analog scales for pain assessment. Written informed consent will be obtained from all participants, and the study will be conducted at Gaziantep Sanko University Hospital Cardiovascular Surgery Unit in accordance with ethical committee approval. The aim of this research is to develop a safe and effective method to improve respiratory health and quality of life in patients after cardiac surgery.

Interventions

OTHERIntervention Group

Participants receive standard in-hospital cardiac rehabilitation plus diaphragm release technique. The diaphragm release is performed daily during the hospital stay for a minimum o

OTHERControl Group

Participants receive standard in-hospital cardiac rehabilitation only, including breathing exercises, mobilization, and post-operative physiotherapy, without diaphragm release.

Sponsors

Sanko University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Intervention model description

This is a two-arm interventional study designed to evaluate the effects of the diaphragm release technique on post-operative respiratory function and sleep quality in patients undergoing minimally invasive coronary artery bypass graft (CABG) surgery. Participants will be assigned to either: Intervention Group: Receives standard in-hospital cardiac rehabilitation plus diaphragm release technique during hospitalization (minimum 5 days). Control Group: Receives standard in-hospital cardiac rehabilitation only. The study follows a prospective, controlled design, with all interventions delivered according to a standardized protocol. Outcomes, including pulmonary function tests, respiratory muscle strength, sleep quality, and pain scores, will be measured at baseline and throughout the hospital stay. Data will be analyzed to compare the physiological and clinical effects between the two groups.

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age under 65 years * Undergoing minimally invasive coronary artery bypass graft (CABG) surgery * Hemodynamically stable * Ambulatory (able to walk) * Willing to participate in the study and provide written informed consent * Mini-Mental State Examination (MMSE) score ≥ 25

Exclusion criteria

* History of cerebrovascular events (stroke, TIA) * Orthopedic problems preventing walking * Uncontrolled diabetes * Uncontrolled hypertension * Severe visual impairment * Other diseases limiting participation in exercise training (pulmonary, neurological, metabolic, etc.) * Verbal or auditory cooperation problems

Design outcomes

Primary

MeasureTime frameDescription
Pulmonary Function (Spirometry)1 yearsFEV1/FVC ratio measured with a spirometer. Measurements are performed according to ATS/ERS guidelines.
Sleep Quality (Pittsburgh Sleep Quality Index)1 yearssleep latency and daytime dysfunction evaluated using the Pittsburgh Sleep Quality Index.
Respiratory Muscle Strength (MIP/MEP)1 yearsMaximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) measured using an oral pressure device to evaluate respiratory muscle strength.
Pain Level (Visual Analog Scale)1 yearsChest and incision site pain assessed using a 0-10 cm Visual Analog Scale (0 = no pain, 10 = worst pain imaginable). Measured during rest, activity, and night.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026