Sarcopenia in Chronic Lung Diseases

This study is examining sarcopenia (muscle wasting and weakness) in patients with chronic lung diseases — specifically COPD (chronic obstructive pulmonary disease) and interstitial lung disease (ILD). Researchers want to understand how muscle loss affects care needs and medical resource use in these patients. **You may be eligible if...** - You are 20 years or older - You have been diagnosed with COPD or interstitial lung disease (ILD) - You are an outpatient (not currently hospitalized or needing emergency care) - You have been assessed as having frailty based on a frailty scale - You agree to share your ID information for linkage to health databases **You may NOT be eligible if...** - You refuse to sign the consent form - You are bedridden or cannot walk due to physical disability - You have terminal cancer or advanced HIV/AIDS - You have significant fluid swelling (edema) Talk to your doctor to see if this trial is right for you.