About this trial
This study aims to investigate the effects of different types of respiratory muscle training on lung function, diaphragm movement, and voice quality in patients with Parkinson's disease (PD). PD often leads to breathing difficulties and voice abnormalities due to weakened respiratory muscles and reduced diaphragm mobility. The study will involve 45 participants with PD, randomly assigned to three groups: one group will perform inspiratory muscle training, the second group will perform both inspiratory and expiratory muscle training, and the third group will receive placebo-controlled expiratory muscle training. The hypothesis is that targeted respiratory muscle training will significantly improve pulmonary function, diaphragm excursion, and phonatory measures compared to the placebo group. The findings aim to develop effective rehabilitation strategies to enhance the quality of life and communication abilities in individuals with PD.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients with Parkinson's disease (Hoehn & Yahr stage I-III),
Patients aged 30-85
Patients with stable medical condition, regular medication adherence, and ability to follow instructions.
Disqualifiers
Patients with cognitive impairment
Patients with respiratory or other neurological diseases
Patients with smoking history
Patients with respiratory complications
Trial design
Parallel
Treatments tested in this trial
respiratory muscle training
BehavioralInspiratory muscle training with two sessions per day, five repetitions per session, six days a week for eight weeks.
Expiratory Muscle Training
BehavioralExpiratory muscle training with two sessions per day, five repetitions per session, six days a week for eight weeks.
Placebo-Controlled Expiratory Muscle Training
BehavioralPlacebo-controlled expiratory muscle training with two sessions per day, five repetitions per session, six days a week for eight weeks.
Treatment groups
Trial outcomes
Primary outcomes
Forced Vital Capacity (FVC)
This measure will assess the forced vital capacity (FVC) to evaluate the maximum amount of air a person can forcibly exhale from the lungs after taking the deepest breath possible.
Forced Expiratory Volume in One Second (FEV1)
This measure will assess the forced expiratory volume in one second (FEV1) to evaluate how much air a person can forcibly exhale in one second.
Maximal Inspiratory Pressure (MIP)
This measure will assess the maximal inspiratory pressure (MIP) to evaluate the strength of respiratory muscles during inhalation.
Maximal Expiratory Pressure (MEP)
This measure will assess the maximal expiratory pressure (MEP) to evaluate the strength of respiratory muscles during exhalation.
Secondary outcomes
Diaphragm Thickness
This measure will assess diaphragm thickness using ultrasound to evaluate changes in diaphragm function due to the training.
Diaphragm Excursion
This measure will assess diaphragm excursion using ultrasound to evaluate the movement of the diaphragm during breathing.
Locations
Sponsors and contacts
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