Physical Functioning Throughout Lung Cancer Treatment

Preliminary evidence suggests that patients with lung cancer experience a decrease of exercise tolerance and muscle strength during the course of their treatment. The underlying mechanisms and impact of this change has not yet been investigated. In light of this, our trial will prospectively follow a convenience sample of 150 patients with lung cancer who are undergoing treatment. Patients will be assessed before, during and at the end of the treatment (surgery and/or chemotherapy and/or radiotherapy and/or immunotherapy). The aims of the study are to 1. Investigate physical status, before start of treatment in lung cancer patients in comparison with healthy controls (primary outcome). 2. Investigate changes in physical status over the course of treatment in lung cancer patients (primary outcome). 3. Investigate the relationship between changes in physical status with physical activity and symptoms during treatment for lung cancer (secondary outcome). 4. Investigate the relationship between physical status after treatment for lung cancer and comorbidities, hospitalizations and cancer-related and all-cause mortality (exploratory outcome).