Post-cardiac surgery patients who underwent median sternotomy at Phramongkutklao Hospital and enrolled in an outpatient (phase II) cardiac rehabilitation program within 4 weeks after surgery Cardiac surgery Median sternotomy Threshold Inspiratory Muscle Training Outpatient phase cardiac rehabilitation Inspiratory muscle strength Submaximal exercise capacity 6 minute walk distance
Conditions
Interventions
Threshold Inspiratory Muscle Training with Respironics device, resistance at 30-70 percentage of Maximal Inspiratory Pressure (MIP), 6-10 breaths per minute, 1 minute rest, 5-7 cycles per session, onc
Experimental Device,Sham Comparator Device
Threshold Inspiratory Muscle Training,Sham Threshold Inspiratory Muscle Training
Sponsors
no
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. Adults age 18 to 75 years old, 2. Post-cardiac surgery patients who underwent median sternotomy at Phramongkutklao Hospital and enrolled in an outpatient (phase II) cardiac rehabilitation program within 4 weeks after surgery, 3. Provided written informed consent to participate, 4. Able to perform the six-minute walk test (6MWT) and to participate safely in the IMT training program during the study period
Exclusion criteria
Exclusion criteria: 1. Contraindications to exercise testing as per American College of Sports Medicine (ACSM) criteria e.g., ECG abnormalities at rest indicating ischemia, recent myocardial infarction (within the past 2 days), unstable angina, uncontrolled arrhythmias, severe aortic stenosis, acute heart failure, fever or acute infection, resting blood pressure more than 200/110 mmHg, high-grade AV block, 2. Musculoskeletal or orthopedic conditions that preclude exercise, 3. Significant psychiatric, mood, or cognitive disorders that would interfere with exercise participation, 4. Chronic lung disease or other comorbidity that would impair the ability to perform the training
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Inspiratory muscle strength baseline, 6 weeks after end of the intervention, 12 weeks after end of the intervention Maximum inspiratory pressure (MIP) | — |
Secondary
| Measure | Time frame |
|---|---|
| submaximal exercise capacity baseline, 6 weeks after end of the intervention, 12 weeks after end of the intervention 6 minute walk distance (6MWD) | — |
Countries
Thailand
Contacts
Public ContactButchat Chutinimitkul
Phramongkutklao Hospital
Outcome results
None listed