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Long-Term Effects of Pedometer-Based Physical Activity Coaching in Severe COPD: A Randomized Controlled Trial
Dario Kohlbrenner1, Noriane A Sievi1, Oliver Senn2
1Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland.
International Journal of Chronic Obstructive Pulmonary Disease
|November 16, 2020
Summary
A three-month physical activity program for severe COPD patients did not improve daily step counts after one year. Low participation rates limited the intervention's long-term effectiveness in maintaining physical activity.
Area of Science:
- Pulmonary Medicine
- Rehabilitation Science
- Gerontology
Background:
- Limited long-term data exists on physical activity interventions for Chronic Obstructive Pulmonary Disease (COPD).
- Physical activity decline is a concern in severe to very severe COPD patients.
Purpose of the Study:
- To assess the long-term effects of a 3-month physical activity program combined with pedometer feedback in severe to very severe COPD patients.
- To compare the intervention group receiving usual care plus the program against a control group receiving only usual care over a 12-month period.
Main Methods:
- Randomized controlled trial with 74 participants (severe to very severe COPD).
- Intervention group received usual care, motivational support, activity diary, pedometer, and a step goal (≥15% increase).
- Primary outcome: daily step count at 12 months. Intervention lasted 3 months, followed by 9 months of observation.
Main Results:
- 61 participants (82%) completed the study.
- No significant difference in the change of daily step count at 12 months was found between the intervention and control groups (B = 547.33, 95% CI = -243.55/1338.20).
- The lack of significant difference was attributed to low response rates to the intervention.
Conclusions:
- A 3-month physical activity program with pedometer feedback does not prevent the decline in physical activity in severe to very severe COPD patients over one year.
- The intervention's limited long-term effectiveness was influenced by low participant engagement and response rates.
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