Short-term Effects of Preoperative Exercise in Moderate-to-high Perioperative Risk Lung Cancer Patients

This trial is studying the short-term benefits of a structured exercise program in the weeks before lung cancer surgery for patients who are at higher risk of complications. Getting fitter before major surgery — sometimes called "prehabilitation" — may help people recover faster and have fewer complications. This study focuses on patients whose lung function or fitness is below the usual safe threshold for surgery. **You may be eligible if...** - You are over 18 years old - You have suspected or confirmed lung cancer with surgery planned - You are considered moderate to high risk for surgery complications based on breathing tests or fitness measurements - You can complete a full cardiopulmonary exercise test (a test measuring how your heart and lungs perform during physical activity) **You may NOT be eligible if...** - You have had or currently have another type of cancer - Your life expectancy is less than 1 year - You have dementia or physical limitations that prevent you from exercising - You have abnormal vital signs at rest (very fast or slow heart rate, very high blood pressure, low oxygen levels, or fever) - You are enrolled in another clinical trial Talk to your doctor to see if this trial is right for you.