• linkedin
  • Increase Font
  • Sharebar

    ATS: Pulmonary Rehab Helps Obese COPD Patients Exercise

    Increasing activity, intensity could improve tolerance for functional, peak physical output in COPD

    MONDAY, May 17 (HealthDay News) -- Patients with chronic obstructive pulmonary disease (COPD) and extreme obesity may have less tolerance for exercise initially, but COPD patients at any obesity level can improve their exercise tolerance with pulmonary rehabilitation, according to research presented at the annual meeting of the American Thoracic Society, held from May 14 to 19 in New Orleans. According to other research presented at the meeting, increasing daily activity and exercise intensity may help COPD patients increase functional exercise and peak exercise tolerance, respectively.

    N.J. Greening, of the University Hospitals of Leicester in the United Kingdom, and colleagues compared changes in exercise performance and endurance, health status, and the baseline characteristics and completion rates of 504 patients with COPD ranging from normal weight to extreme obesity who participated in a pulmonary rehabilitation program. All patients improved in exercise performance and health status, and changes in performance were similar in all body mass index (BMI) groups. The researchers determined that obese patients with COPD had worse exercise intolerance at baseline, but patients at all obesity levels improved in exercise performance after pulmonary rehabilitation.

    Chris Burtin, of the Catholic University Leuven in Belgium, and colleagues assessed functional, peak, and maximal workload exercise tolerance in 40 patients with COPD. They found that number of daily steps, quadriceps force and BMI contributed to the prediction of functional exercise tolerance, and that TLco, BMI, forced expiratory volume in one second, and energy expenditure during activities performed at an intensity exceeding three metabolic equivalents contribute significantly to the model that explains maximal oxygen consumption.

    "Whereas functional exercise tolerance is primarily related with the amount of daily physical activities, maximal exercise capacity is more closely related to factors associated to disease severity and to the intensity of the performed activities," write the authors of the second study.

    More Information

    Copyright © 2010 HealthDay. All rights reserved.