This study explores the clinical and functional outcomes related to pulmonary complications in patients post-coronary artery bypass grafting (CABG). It contrasts the recovery of patients without complications (Non Complicated Group) against those with complications (Complicated Group), using various functional tests like the six-minute walk test, gait speed, and pulmonary function tests. Results indicate significant declines in functional performance, muscle strength, and pulmonary function in the Complicated Group, highlighting the impact of pulmonary complications on postoperative recovery.