This trial is a prospective multi-center study. The purpose of this study is to evaluate the effect of dietary supplement combined with supervised exercised on the physical performance, body composition and lung function among patients with Sarcopenia and severe Sarcopenia in chronic lung disease. After participants enroll in this study, 12-week clinical trial will be conducted to analyze the improvement regarding Sarcopenia and different severity of Sarcopenia before and after the intervention of exercise and nutritional products, which can further provide reference for clinical intervention and rehabilitation.