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Relation between physical capacity, nutritional status and systemic inflammation in COPD.
Runa Hallin1, Christer Janson, Ragnheiður Harpa Arnardottir
1Department of Medical Sciences, Respiratory Medicine and Allergology, Uppsala University, Uppsala, Sweden. runa.hallin@medsci.uu.se
The Clinical Respiratory Journal
|June 18, 2011
Summary
Physical capacity in chronic obstructive pulmonary disease (COPD) is linked to lung function, body composition, and inflammation. Understanding these factors is key for effective COPD treatment strategies.
Area of Science:
- Pulmonary Medicine
- Clinical Nutrition
- Inflammation Research
Background:
- Chronic Obstructive Pulmonary Disease (COPD) often involves reduced physical capacity, weight loss, and systemic inflammation.
- These factors significantly impact patient well-being and disease progression.
Purpose of the Study:
- To investigate the relationships between physical capacity, nutritional status, systemic inflammation, and disease severity in COPD patients.
- To identify key predictors of physical capacity in moderate to severe COPD.
Main Methods:
- Studied 49 patients with moderate to severe COPD.
- Assessed physical capacity using spirometry, cycle ergometry, shuttle walking tests, and hand grip strength.
- Evaluated nutritional status via anthropometry and bioelectrical impedance, and measured C-reactive protein (CRP) and fibrinogen levels.
Main Results:
- Working capacity correlated positively with FEV(1), BMI, and fat-free mass index, and negatively with CRP and fibrinogen.
- Incremental shuttle walk test results were positively associated with FEV(1) and negatively with CRP.
- A regression model including age, gender, FEV(1), fat-free mass index, and CRP explained 50-76% of the variation in physical capacity.
Conclusions:
- Physical capacity in COPD is multifactorial, influenced by lung function, body composition, and systemic inflammation.
- A comprehensive assessment of these three aspects is crucial for tailoring interventions in COPD management.
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