Comparison of Two Programs to Encourage Physical Activity in Individuals With Chronic Obstructive Pulmonary Disease

Exercise and Disability in COPD Patients

Chronic obstructive pulmonary disease (COPD) is a chronic lung disease. Symptoms include shortness of breath, wheezing, and difficulty exercising. Increasing exercise and physical activity may relieve the symptoms of COPD and may also slow the progression of the disease. The purpose of this study is to evaluate the effectiveness of a lifestyle activity program versus a traditional exercise program at increasing the amount of physical activity among individuals with COPD.

Study Overview

Detailed Description

COPD is a disease in which the lung airways are partly damaged and obstructed, making it difficult to breathe. It is the fourth leading cause of death in the United States. Cigarette smoking is the most common cause of COPD; however, breathing in other types of lung irritants, including pollution, dust, and chemicals, over a long period of time may also cause or contribute to COPD. The primary symptoms of COPD, exercise intolerance and shortness of breath, often result in physical activity limitations, which may lead to a decreased quality of life. While COPD is a chronic, incurable disease, individuals who incorporate exercise and physical activity into their daily lifestyle may reduce the symptoms and slow the progression of the disease. The purpose of this study is to compare the effectiveness of an overall lifestyle activity program versus a traditional exercise program on physical activity in individuals with COPD. The study will also evaluate the impact of the two programs on exercise capacity, physical function, self-reported disability, and health-related quality of life.

Participants with COPD will be randomly assigned to either an 11-month lifestyle activity program or a traditional 3-month exercise program. The lifestyle activity program will consist of 35 exercise and counseling sessions spaced over 11 months. This program will use cognitive-behavioral strategies to encourage physical activity at home. Participants will receive information on how to deal with COPD symptoms (including shortness of breath), goal-setting, social support, and motivation. Participants will also receive follow-up telephone calls from the program staff for additional support. The 3-month exercise program will consist of 36 1-hour exercise training sessions, conducted 3 times a week for 12 weeks.

All participants will attend 4 baseline study visits at which their medical history will be reviewed and standardized questionnaires will be completed to assess mood, depression, social factors, COPD symptoms, and physical activity levels. Participants will undergo a physical examination; a blood draw for laboratory testing; and spirometry, lung function, exercise, and strength tests. These measures will be assessed again at 3, 6, and 12 months; the 3- and 12-month assessments will occur over four study visits, and the 6-month assessment will occur over two study visits.

Study Type

Interventional

Enrollment (Actual)

318

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • North Carolina
      • Winston-Salem, North Carolina, United States, 27109
        • Wake Forest University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Expiratory airflow limitation such that FEV1/FVC is less than or equal to 70% and the FEV₁ is greater than or equal to 20% of the predicted amount
  • Physical disability, including self-reported difficulty with walking a city block, climbing stairs, lifting and carrying groceries, performing household activities such as cleaning and doing yard work, or getting out of a chair
  • Currently lives within a 35-mile radius of Wake Forest University
  • Plans to reside in Forsyth County, North Carolina for the entire study
  • Willing and able to participate in all aspects of the trial

Exclusion Criteria:

  • Undergoing treatment for cancer
  • Severe congestive heart failure
  • Stroke
  • Peripheral vascular disease
  • Coronary artery disease
  • Valvular heart disease
  • Major psychiatric disease
  • Severe anemia
  • Liver or kidney disease
  • Uncontrolled diabetes or hypertension
  • Orthopedic impairment
  • Blindness or deafness
  • Oxygen desaturation during exercise to less than 90%, at a heart rate less than 50% of predicted maximum for participant's age and without supplemental oxygen
  • Inability to exercise due to a physical disability or positive exercise stress test
  • Alcohol consumption of greater than two drinks per day in the 2 months prior to study entry

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Eleven month lifestyle activity program
The lifestyle activity program will consist of 35 exercise and counseling sessions spaced over 11 months. This program will use cognitive-behavioral strategies to encourage physical activity at home. Participants will receive information on how to deal with COPD symptoms (including shortness of breath), goal-setting, social support, and motivation. Participants will also receive follow-up telephone calls from the program staff for additional support.
Active Comparator: 2
Three month exercise program
The 3-month exercise program will consist of 36 1-hour exercise training sessions, conducted 3 times a week for 12 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Amount of time engaged in moderate physical activity each week
Time Frame: Measured at Year 1
Measured at Year 1

Secondary Outcome Measures

Outcome Measure
Time Frame
Health related quality of life
Time Frame: Measured at Year 1
Measured at Year 1
Self-reported disability
Time Frame: Measured at Year 1
Measured at Year 1
Physical function
Time Frame: Measured at Year 1
Measured at Year 1
Exercise capacity
Time Frame: Measured at Year 1
Measured at Year 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Michael J. Berry, PhD, Wake Forest University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2002

Primary Completion (Actual)

July 1, 2007

Study Completion (Actual)

July 1, 2007

Study Registration Dates

First Submitted

May 19, 2006

First Submitted That Met QC Criteria

May 19, 2006

First Posted (Estimate)

May 22, 2006

Study Record Updates

Last Update Posted (Estimate)

July 29, 2016

Last Update Submitted That Met QC Criteria

July 28, 2016

Last Verified

February 1, 2009

More Information

Terms related to this study

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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