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

NCT07470034 | Completed

• 1 other identifier: burcubagci6
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

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...

Conditions

Coronary Artery Bypass; Cardiac Rehabilitation

Keywords

Cardiac Rehabilitation; Coronary Artery Bypass

Outcome Measures

Primary Outcomes (4)

• Pulmonary Function (Spirometry)

  FEV1/FVC ratio measured with a spirometer. Measurements are performed according to ATS/ERS guidelines.

  1 years

• Sleep Quality (Pittsburgh Sleep Quality Index)

  sleep latency and daytime dysfunction evaluated using the Pittsburgh Sleep Quality Index.

  1 years

• Respiratory Muscle Strength (MIP/MEP)

  Maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) measured using an oral pressure device to evaluate respiratory muscle strength.

  1 years

• Pain Level (Visual Analog Scale)

  Chest 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.

  1 years

Study Arms (2)

Diaphragm Release plus Standard Cardiac Rehabilitation

ACTIVE COMPARATOR

Standard in-hospital cardiac rehabilitation plus diaphragm release technique applied for a minimum of 5 days during hospitalization.

Other: Intervention Group

Standard In-Hospital Cardiac Rehabilitation

ACTIVE COMPARATOR

Standard in-hospital cardiac rehabilitation only.

Other: Control Group

Interventions

Intervention Group OTHER

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

Diaphragm Release plus Standard Cardiac Rehabilitation

Control Group OTHER

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

Standard In-Hospital Cardiac Rehabilitation

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• Sanko University: lead

Study Sites (1)

Sanko Unıversıty

Gaziantep, şehitkamil, 27500, Turkey (Türkiye)

Location

MeSH Terms

Interventions

Control Groups

Intervention Hierarchy (Ancestors)

Epidemiologic Research Design; Epidemiologic Methods; Investigative Techniques; Research Design; Methods

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: ass prof

Model Details: 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.

Study Record Dates

• First Submitted: March 2, 2026
• First Posted: March 13, 2026
• Study Start: August 30, 2025
• Primary Completion: January 15, 2026
• Study Completion: February 15, 2026
• Last Updated: March 13, 2026

Record last verified: 2026-03

Locations

TU (1)