https://www.selleckchem.com/pr....oducts/nvp-bgt226.ht
Difficulty scores improved after pharmacological treatment and pulmonary rehabilitation, while amount scores improved after behavioural physical activity interventions. All scores were responsive to changes in self-reported physical activity experience (both worsening and improvement) and to the occurrence of COPD exacerbations during follow-up. The MID was estimated to 6 for amount and difficulty scores and 4 for total score. The D-PPAC and C-PPAC instruments are reliable and valid across diverse COPD populations and responsive to p
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