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.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
54
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.
University of Michigan - School of Nursing
Ann Arbor, Michigan, United States
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.
Time frame: During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18
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.
Time frame: 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)
Subjects complete a performance test measuring balance, gait speed, and leg strength (using a chair stand test) at the three time points listed.
Time frame: 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.
Time frame: 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.
Time frame: During initial visit (week 1), at 6 or 10 weeks (depending on group placement), and at week 18
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