At three months post-op you should be able to resume normal exercise activities, but I would get cleared by your PS for confirmation. Most patients should be able to resume most activities after 5-7 weeks. After a tummy tuck procedure, it is important for a patient to maintain a healthy lifestyle to ensure optimal results, however, jumping back into a rigorous workout regimen too quickly after a tummy tuck surgery can make recovery more difficult and longer. It is important to start slowly and listen to your body. Patients may typically start to resume light exercise two weeks after the surgery, but heavy lifting of weight more than 15 lb, sit-ups, and crunches should not resume until 8 weeks after the surgery.