Interval Inspiratory Training and Aerobic Exercise for Muscle Recovery in Myasthenia Gravis Post-Hospitalization
- Conditions
- Myasthenia Gravis
- Interventions
- Procedure: Inspiratory muscle trainingProcedure: Control Group
- Registration Number
- NCT06624345
- Lead Sponsor
- Chang Gung University
- Brief Summary
The goal of this clinical trial is to determine whether inspiratory muscle training aids in the recovery of respiratory muscle strength and helps prevent further muscle weakness in patients with myasthenia gravis.
The primary research questions are:
Does inspiratory muscle training enhance respiratory muscle strength recovery? Does the intervention lead to improved lung volumes? Participants underwent daily inspiratory muscle training and aerobic exercise for six consecutive weeks.
- Detailed Description
Patients with myasthenia gravis who experience acute exacerbations requiring hospitalization often suffer a significant decline in muscle strength, followed by partial recovery after the acute phase. This randomized controlled trial aims to evaluate the potential of early inspiratory muscle training and aerobic exercise in promoting muscle strength recovery and preventing further weakness. The study will assess differences in lung function, respiratory muscle strength, and dyspnea levels following the intervention after patients are discharged from the hospital post-acute exacerbation.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 68
- Hospitalized due to a myasthenia gravis crisis
- Cleared for discharge from the hospital
- Capable of completing six weeks of home-based respiratory muscle and exercise training
- Myasthenia Gravis Foundation of America (MGFA) classification I or V
- Presence of concurrent heart, kidney, liver, or metabolic diseases, or malignant tumors
- Ability to follow exercise instructions
- New York Heart Association (NYHA) Class III/IV
- Pulmonary disease (FEV1/FVC ratio < 0.7 and FEV1 < 50% predicted)
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Inspiratory Muscle Training Inspiratory muscle training Subjects received inspiratory muscle training and aerobic excercise approximately 30 minutes for 6 weeks. Control group Control Group Subjects received routine care.
- Primary Outcome Measures
Name Time Method Maximum inspiratory pressure Six weeks Maximum inspiratory pressure was measured by instructing each subject to exert their maximum inspiratory force against a pressure gauge.
- Secondary Outcome Measures
Name Time Method Dyspnea Severity Assessment Six weeks Dyspnea severity was assessed by a rating of perceived exertion, using the Borg Scale which ranged from 0 (no respiratory difficulty) to 10 (extreme respiratory difficulty), with higher scores indicating more severe breathing difficulty.
Forced expiratory volume at one second Six weeks The forced expiratory volume at one second was obtained, using spirometry, by having the patient take a deep breath and then exhale forcefully. The test results were based on three reproducible measurements.
Peak expiratory flow Six weeks The peak expiratory flow was measured using a respiratory mechanics monitor during three forceful expirations.
Maximum expiratory pressure Six weeks Maximum expiratory pressure was measured by instructing each subject to exert their maximum expiratory force against a pressure gauge.
Forced Vital Capacity Six weeks Forced vital capacity was measured using spirometry. Patients were instructed to take a deep breath and then exhale forcefully. The results were based on the average of three reproducible measurements.
Six-minute walk test Six weeks Patients were instructed to walk as fast as possible, while pulse oxygen saturation levels, heart rate, and Borg scale scores were monitored and recorded before, during, and after the test.
Trial Locations
- Locations (1)
Kaohsiung Chang Gung Memorial Hospital
🇨🇳Kaohsiung, Taiwan