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Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
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Oral prednisolone for 4 days does not increase exercise tolerance in men with COPD
S L Karlsson1, V Backer2, Nina Skavlan Godtfredsen1
11 Department of Respiratory Medicine, Hvidovre University Hospital, Hvidovre, Denmark.
Chronic Respiratory Disease
|July 19, 2017
Summary
Systemic corticosteroids, commonly used for acute exacerbations of chronic obstructive pulmonary disease (COPD), may improve muscle strength. This study found prednisolone increased quadriceps muscle strength in COPD patients, suggesting a potential benefit beyond respiratory function.
Area of Science:
- Pulmonary Medicine
- Exercise Physiology
- Pharmacology
Background:
- Chronic obstructive pulmonary disease (COPD) management focuses on preventing lung function decline and reducing acute exacerbations (AECOPD).
- Systemic corticosteroids are a standard treatment for AECOPD, but their effects on exercise performance and muscle fatigue are less understood.
- This study investigated the impact of oral prednisolone on exercise capacity and muscle function in severe to very severe COPD patients.
Discussion:
- While oral corticosteroids did not improve time to exhaustion or lung function in COPD patients, they significantly enhanced maximal voluntary contraction (MVC) of the quadriceps femoris muscle.
- This suggests that corticosteroids may have a direct positive effect on skeletal muscle strength, even during submaximal endurance activities.
- The findings indicate a potential benefit of corticosteroids in mitigating muscle fatigue and improving muscle performance in COPD patients.
Key Insights:
- Oral prednisolone treatment for 5 days significantly increased quadriceps muscle strength (MVC) in patients with severe to very severe COPD.
- No significant differences were observed in time to exhaustion, lung function, or maximal respiratory pressures between the prednisolone and placebo groups.
- Corticosteroids appear to impact muscle groups subjected to submaximal endurance exercise, independent of improvements in overall exercise tolerance or lung function.
Outlook:
- Further research is warranted to explore the long-term effects of corticosteroids on muscle function and exercise capacity in COPD.
- Investigating the specific mechanisms by which corticosteroids enhance muscle strength in COPD could lead to targeted therapeutic strategies.
- This study opens avenues for considering corticosteroid therapy not only for AECOPD management but also for improving the physical function and quality of life in COPD patients.
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