Sarcopenia in Chronic Lung Diseases

Inclusion Criteria: 1. Outpatients with COPD (chronic obstructive pulmonary disease) or ILD (interstitial lung disease) from department of Chest medicine in Taichung Veterans General Hospital, judged by the doctor that they do not need hospitalization or emergent treatment. 2. Those who meet the conditions for frailty diagnosis after assessment by the Frailty Scale 3. Patients who agree to provide the ID card number to the research team for usage as a link to the National Health Insurance research database and Health bank to explore the continuity of care and the use of medical resources 4. Age\>=20 Exclusion Criteria: 1. Patients who refuse to sign the consent form 2. Patients who are bed ridden or unable to walk due to physical disabilities 3. Patients with terminal cancer or human acquired immunodeficiency syndrome 4. Patients with edema (pitting edema +2)