Behavioral Intervention to Increase Physical Activity in Patients With Asthma

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

46 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-10-05

Study Completion Date

2019-11-30

Brief Summary

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The health benefits of physical activity (PA) are well documented and include improving in cardiovascular, obesity, mental health and all-cause mortality. Although higher levels of activity in patients with asthma are also associated with better outcomes, patients still avoid physical activity due to concern about exacerbating their asthma symptoms by the exercise induced bronchoconstriction (EIB), sustaining a vicious cycle of inactivity and worse asthma control. Many studies have reported the benefits of supervised exercise training on several asthma outcomes, such as exacerbations, asthma control, cardiopulmonary fitness, airway inflammation and psychosocial symptoms; however, the translation of the improvements in the exercise capacity into increments in PA levels is less evident and still controversial. Therefore, the hypothesis of this study is that behavioural interventions using strategies based on well-established psychosocial models are effective in increasing physical activity levels and decrease sedentary behaviour in adults with asthma, which will be associated with improvements in the asthma control.

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Detailed Description

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This is prospective and randomized controlled trial (RCT) with 2 arms and blinded outcome assessments. Forty-six moderate or severe patients with asthma under optimized medication will be randomly assigned (computer-generated) into either Control Group (CG) or Intervention Group (IG). Both groups will receive similar educational program. However, only the IG will be submitted to the behavioral intervention through physical activity counseling program combined with a monitoring-and-feedback tool aiming to increase physical activity levels (total of 8 weekly goal-setting consultation, face-to-face, each lasting 40 minutes). Before and after the interventions, clinical control of asthma, physical activity levels, health-related quality of life, asthma exacerbation, levels of anxiety and depression symptoms and anthropometric indices will be assessed. Data about onset of asthma, comorbidities, lung function and asthma medication will be collected from the patient's medical record. The data normality will be analyzed by Kolmogorov-Smirnov, and a two-way ANOVA with repeated measures with appropriate post hoc of Holm-sidak will be used to compare inter and intra-groups differences. The significance level will be set to 5% for all tests.

Conditions

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Asthma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

All the measurements will be performed by a blinded professional, who will be masked from randomization and other results. For each test, the same investigator will be maintained before and after the intervention. The participants will know what treatment they will receive, but they don't will know what intervention belongs to the control group.

Study Groups

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Intervention Group (IG)

The intervention of active comparator will be education program plus behavioral intervention through physical activity counseling program combined with a monitoring-and-feedback tool.

Group Type ACTIVE_COMPARATOR

Education Program

Intervention Type OTHER

The educational program will consist of 2 classes held once a week, each lasting 90 minutes. The classes will be based on an education videotape, presentations and group discussions. The first class will address the asthma education, which will include information about the pathophysiology of asthma, medication and peak flow meter instructions, self-monitoring techniques, environmental control techniques and avoidance strategies. The second class will be about the current international physical activity recommendations and the importance and benefits of being physically active and maintain a healthy lifestyle.

Behavioral intervention

Intervention Type BEHAVIORAL

The behavioural intervention will be performed in 8 weekly goal-setting consultation, face-to-face, each lasting 40 minutes. Patients will be offered a commercially-available activity tracker to wear during 3 days prior to each consultation. According to their own PA data and the behavioural change stage, an individual action plan will be established with realistic goals to increase PA. Each participant will receive individual counselling with the goal of increasing participation in PA and reducing their sedentary time. Techniques such as weekly goal-setting, motivational interviewing, activity tracker vibration instructions, self-management, positive reinforcement, relapse prevention and strategies to overcome barriers will be included.

Control Group (CG)

The intervention of sham comparator will be an education program in asthma and physical activity recommendations.

Group Type SHAM_COMPARATOR

Education Program

Intervention Type OTHER

The educational program will consist of 2 classes held once a week, each lasting 90 minutes. The classes will be based on an education videotape, presentations and group discussions. The first class will address the asthma education, which will include information about the pathophysiology of asthma, medication and peak flow meter instructions, self-monitoring techniques, environmental control techniques and avoidance strategies. The second class will be about the current international physical activity recommendations and the importance and benefits of being physically active and maintain a healthy lifestyle.

Interventions

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Education Program

The educational program will consist of 2 classes held once a week, each lasting 90 minutes. The classes will be based on an education videotape, presentations and group discussions. The first class will address the asthma education, which will include information about the pathophysiology of asthma, medication and peak flow meter instructions, self-monitoring techniques, environmental control techniques and avoidance strategies. The second class will be about the current international physical activity recommendations and the importance and benefits of being physically active and maintain a healthy lifestyle.

Intervention Type OTHER

Behavioral intervention

The behavioural intervention will be performed in 8 weekly goal-setting consultation, face-to-face, each lasting 40 minutes. Patients will be offered a commercially-available activity tracker to wear during 3 days prior to each consultation. According to their own PA data and the behavioural change stage, an individual action plan will be established with realistic goals to increase PA. Each participant will receive individual counselling with the goal of increasing participation in PA and reducing their sedentary time. Techniques such as weekly goal-setting, motivational interviewing, activity tracker vibration instructions, self-management, positive reinforcement, relapse prevention and strategies to overcome barriers will be included.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Asthma moderate and severe with diagnosed according to the Global Initiative for Asthma (GINA) 2018
* Poorly controlled asthma (ACQ score \> 1.5)
* Sedentary (\< 150 min of moderate to vigorous physical activity/week)
* 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

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No