Figure 2From: The impact of obesity on walking and cycling performance and response to pulmonary rehabilitation in COPD 6-minute walking distance and endurance time to constant workrate exercise according to the 3 body mass index (BMI) categories, at baseline and after pulmonary rehabilitation. Values are mean (SD). * = p < 0.01 baseline versus after rehabilitation within each BMI group, † = p < 0.01 obese versus normal BMI, ‡ = p < 0.01 obese versus overweight.Back to article page