Aerobic and Respiratory Exercises on Asthma

NCT ID: NCT04412720

Last Updated: 2023-08-24

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 52 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-03-05
• Study Completion Date: 2021-07-31

Brief Summary

Many studies have reported the benefits of aerobic and breathing exercises such as, reduction of symptoms and reduced the use of medications, the number of crises, exercise induced bronchoconstriction (EIB), and improvement in health-related quality of life (HRQoL). This study will be a randomized and controlled trial (RCT) with 2 parallel arms and blinded assessment. Fifty-four moderate or severe patients with asthma under optimized medication will be randomly assigned (computer-generated) into either aerobic+breathing exercises (AB) or aerobic+stretching exercises (AS). All patients will receive the same educational session and will perform the physical exercise proposed for the group for 12 weeks, 2 times/week, 60-minute sessions; however, the AB group will perform Buteyko breathing technique and AS will perform muscle stretching exercise. All patients will be assessed to clinical control, quality of life, psychosocial symptoms, pulmonary function, functional capacity, physical activity levels, sleep quality, thoracoabdominal mechanics, hyperventilation symptoms, and asthma exacerbation. The data normality will be analyzed by Kolmogorov-Smirnov. The variables obtained before interventions will be compared using the t-test or Mann-Whitney U-test. Comparisons of the outcomes initial and final data will be analyzed with repeated measures ANOVA with appropriate post hoc test. The significance level will be set to 5% for all tests.

Detailed Description

Many studies have reported the benefits of aerobic and breathing exercises such as, reduction of symptoms and reduced the use of medications, the number of crises, exercise induced bronchoconstriction (EIB), and improvement in health-related quality of life (HRQoL). This study will be a randomized and controlled trial (RCT) with 2 parallel arms and blinded assessment. Fifty-four moderate or severe patients with asthma under optimized medication will be randomly assigned (computer-generated) into either aerobic+breathing exercises (AB) or aerobic+stretching exercises (AS). All patients will receive the same educational session and will perform the physical exercise proposed for the group for 12 weeks, 2 times/week, 60-minute sessions; however, the AB group will perform Buteyko breathing technique and AS will perform muscle stretching exercise. All patients will be assessed to clinical control, quality of life, psychosocial symptoms, pulmonary function, functional capacity, physical activity levels, sleep quality, thoracoabdominal mechanics, hyperventilation symptoms, and asthma exacerbation. The data normality will be analyzed by Kolmogorov-Smirnov. The variables obtained before interventions will be compared using the t-test or Mann-Whitney U-test. Comparisons of the outcomes initial and final data will be analyzed with repeated measures ANOVA with appropriate post hoc test. The significance level will be set to 5% for all tests.

Conditions

Asthma

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: SINGLE

Study Groups

Aerobic and Breathing Exercises

The experimental intervention will be aerobic and breathing exercises.

Group Type: EXPERIMENTAL

Aerobic and Breathing Exercises

Intervention Type: OTHER

Aerobic exercises will be performed on a treadmill, twice a week, totaling 20 sessions of 60 minutes each. The initial intensity will be 50% to 60% of maximum heart rate and the progression will take place according to the level of effort (Borg) in the last two sessions. In addition, following the aerobic training, Buteyko Breathing Technique also will be performed during 20 minutes each exercise, in the same treatment session. During the first two weeks, the patient will learn the technique supervised by a physical therapist. In addition, the patients will receive a breathing exercise booklet for in-home training. Before and after each session, patients will be evaluated in relation to blood pressure, heart rate, oxygen saturation and asthma symptoms.

Aerobic and Stretching Exercises

The active comparative intervention will be aerobic and stretching exercises.

Group Type: ACTIVE_COMPARATOR

Aerobic and Stretching Exercises

Intervention Type: OTHER

Aerobic exercises will be performed on a treadmill, twice a week, totaling 20 sessions of 60 minutes each. The initial intensity will be 50% to 60% of maximum heart rate and the progression will take place according to the level of effort (Borg) in the last two sessions. In addition, following the aerobic training, stretching exercises will be performing for major muscle groups, during 30 seconds each one. The patients will receive a stretching exercise booklet for in-home training.

Interventions

Aerobic and Breathing Exercises

Aerobic exercises will be performed on a treadmill, twice a week, totaling 20 sessions of 60 minutes each. The initial intensity will be 50% to 60% of maximum heart rate and the progression will take place according to the level of effort (Borg) in the last two sessions. In addition, following the aerobic training, Buteyko Breathing Technique also will be performed during 20 minutes each exercise, in the same treatment session. During the first two weeks, the patient will learn the technique supervised by a physical therapist. In addition, the patients will receive a breathing exercise booklet for in-home training. Before and after each session, patients will be evaluated in relation to blood pressure, heart rate, oxygen saturation and asthma symptoms.

Intervention Type: OTHER

Aerobic and Stretching Exercises

Aerobic exercises will be performed on a treadmill, twice a week, totaling 20 sessions of 60 minutes each. The initial intensity will be 50% to 60% of maximum heart rate and the progression will take place according to the level of effort (Borg) in the last two sessions. In addition, following the aerobic training, stretching exercises will be performing for major muscle groups, during 30 seconds each one. The patients will receive a stretching exercise booklet for in-home training.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Asthma moderate and severe with diagnosed according to the Global Initiative for Asthma (GINA) 2020
• Sedentary (< 150 min of moderate to vigorous physical activity/week)
• Body Mass Index ≥18.5 kg/m2 and <35 kg/m2
• Medical treatment, for at least 6 months
• Clinically stable (i.e., no exacerbation or changes in medication for at least 30 days)

Exclusion Criteria

• Cardiovascular, musculoskeletal or other chronic lung diseases
• Active Cancer
• Pregnant
• Uncontrolled hypertension or diabetes
• Current smoker or ex smoker (>10 pack-years)
• Psychiatric disease or cognitive deficit

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 59 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University of Sao Paulo General Hospital

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Celso RF Carvalho, PhD

Role: STUDY_DIRECTOR

University of Sao Paulo General Hospital

Locations

Celso Ricardo Fernandes de Carvalho

São Paulo, , Brazil

Countries

Brazil

Other Identifiers

2491900

Identifier Type: -

Identifier Source: org_study_id