The aim of this clinical trial is to evaluate, the effects of inspiratory muscle training program in inspiratory muscle function, functional capacity, quality of life, lung function, breathing pattern and chest wall motion in patients with advanced lung disease. Patients were evaluated before the inspiratory muscle training, after 8 weeks of training and at follow-up which was performed 3 months after the end of the intervention.
Inspiratory Muscle Training (IMT) should be considered an additional intervention in the pulmonary rehabilitation program for patients with advanced lung disease. The aim of this study is to evaluate, the effects of inspiratory muscle training program in inspiratory muscle function, functional capacity, quality of life, lung function, breathing pattern and chest wall motion in patients with advanced lung disease. It is a quasi-experimental study with longitudinal design. Patients with advanced lung disease from the advanced lung disease and pre lung transplantation ambulatory performed home-based high intensity interval IMT for 8 weeks (two sessions per day, daily). In each session patients executed two times 30 breaths with one-minute rest between them. Resistance was set to the highest tolerable according to scores pointed by the patient on the Borg score (between 4 and 6) aiming 50% of actual pimax or higher. An experienced physiotherapist was responsible for weekly adjustments on the resistance of training as well as new assessment of maximal inspiratory pressure. Patients were evaluated before the inspiratory muscle training, after 8 weeks of training and at follow-up which was performed 3 months after the end of the intervention. Patients were evaluated by the same experienced researcher in all three moments of the study. Evaluations were performed in the Laboratory of research and evaluation of cardiorespiratory performance of Federal University of Minas Gerais.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
22
Breathing through a device that offers resistance during inspiration. In this study the POWERbreathe device was used (POWERbreathe® K3, HaB International Ltd, UK).
Ambulatório Bias Fortes- Ambulatório de Doença Pulmonar Avançada e Pré Transplante Pulmonar
Belo Horizonte, Minas Gerais, Brazil
Laboratório de Avaliação e Pesquisa em Desempenho Cardiorrespiratório da UFMG
Belo Horizonte, Minas Gerais, Brazil
Change in Inspiratory muscle strength
Maximal inspiratory pressure in cmH2O
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Change in Inspiratory Muscle Endurance
Inspiratory endurance time in seconds
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Change in Lung Function
Spirometry
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Change in Breathing pattern
Optoelectronic plethysmography (percentage of contribution of the 3 lung compartments to ventilation)
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Change in chest wall motion
Optoelectronic plethysmography (lung volumes in liters)
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Change in Functional Capacity (direct measure)
Six minutes walking distance (meters)
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Change in Functional Capacity (inderect measure)
London chest activity of daily living scale (total score) - It evaluates the dyspnea in daily activities. Consists in a 15 questions questionnaire with scores from 0-5 in each question. Total score varies from 0 to 75, the higher the score the major the limitation on daily activities due to dyspnea.
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Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)
Quality of life
Saint George Respiratory questionnaire (total score) It is a 50 questions questionnaire. Total score can go from 0 to 100. Higher scores indicate worse quality of life.
Time frame: Before intervention, after 8 weeks intervention and follow-up (3 months after the end of intervention)