After a total knee replacement, it is important to avoid certain activities such as running and jumping in order to ensure the success of your surgery. Other activities that you should not do after surgery include sports involving contact or twisting movements (e.g., basketball, soccer), heavy weightlifting, squats/lunges, and any activity involving climbing stairs or ladders. It’s also important to take extra care when walking on uneven surfaces like cobblestones. You may be able to perform low-impact activities such as biking or swimming with the approval of your doctor; however, always check with them before doing anything new or strenuous physical activity.