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The purpose of this preliminary study is to examine the effects of a program that includes two-months of structured lab-based training. The proposed study will examine the effects of a lifestyle physical activity intervention designed to increase PA in people with moderate and severe COPD. The intervention includes a combination of (a) structured laboratory-based exercises with a behavioral intervention, (b) structured home-based exercises and (c) lifestyle physical activities performed at home. The subjects will be followed for a total of 18 weeks.
People with chronic obstructive pulmonary disease (COPD) experience a gradual decline in physical activity (PA). Exercise training in a structured pulmonary rehabilitation program can generate substantial gains in functional capacity, but increases in functional capacity do not necessarily lead to improvements in daily PA. The proposed study will examine the effects of a lifestyle physical activity intervention designed to increase PA in people with moderate and severe COPD. The intervention includes a combination of (a) structured laboratory-based exercises with a self-efficacy enhancing intervention, (b) structured home-based exercises and (c) lifestyle physical activities performed at home. The intervention gradually transitions subjects from the structured laboratory-based exercises that focus on walking and circuit training to fully integrated lifestyle physical activities that integrate structured home-based exercises and lifestyle physical activities into daily life. The purpose of this preliminary study is to examine the effects of a program that includes two-months of structured lab-based training and subjects will be followed for a total of 18 weeks.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 8 week group | Experimental | Lifestyle physical activity self-efficacy |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Lifestyle physical activity - self-efficacy | Behavioral | Subjects will come into an exercise lab 2 days per week and perform 10-20 minutes of walking, 13 strength training exercises, stretching and a behavioral intervention including goal setting, etc. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in physical activity measured by accelerometry | Subjects wear two activity monitors for seven consecutive days (Actipal and Actigraph). The study will compare the subject's activity level at the three time points listed. | During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18 |
| Measure | Description | Time Frame |
|---|---|---|
| Change in 6 minute walk test | Subjects complete a 6 minute walk test measuring the total distance he/she can walk in 6 minutes at the three time points listed. | During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18 |
| Change in lower extremity function (Short Physical Performance Battery) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Janet Larson, PhD | University of Michigan - School of Nursing | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Michigan - School of Nursing | Ann Arbor | Michigan | 48109 | United States |
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| ID | Term |
|---|---|
| D029424 | Pulmonary Disease, Chronic Obstructive |
| D009043 | Motor Activity |
| ID | Term |
|---|---|
| D008173 | Lung Diseases, Obstructive |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D002908 | Chronic Disease |
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Lifestyle physical activity self-efficacy
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Subjects complete a performance test measuring balance, gait speed, and leg strength (using a chair stand test) at the three time points listed. |
| During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18 |
| Change in dyspnea and fatigue (Pulmonary Functional Status and Dyspnea Questionnaire-Modified) | Subjects complete a questionnaire answering questions about their level of dyspnea in various daily activities at the three time points listed. | During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18 |
| Change in physical activity measured by CHAMPS questionnaire | Subjects fill out a questionnaire of their perceived physical activity at the three time points listed. | During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18 |
| D020969 |
| Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D001519 | Behavior |