The primary study endpoint is VO@peak and secondary endpoints include : Six-minute walk distance ( @MWD ) , one-repetition-maximum ( @RM ) , pulmonary function , patient-reported outcomes ( PROs ) on health-related quality of life ( HRQoL ) , symptoms and side effects of the cancer disease and the treatment of the disease , anxiety , depression , wellbeing , lifestyle , hospitalization time , sick leave , work status , postoperative complications ( up to @ days after surgery ) and survival .