Women who have been successfully treated for endometrial cancer will be invited to participate in the study. After you agree to participate you will be asked questions about your physical activity to make sure you are eligible. You will only be allowed to participate in this study if your physician feels it is safe for you to engage in moderate physical activity, so you will be asked to have him or her complete a form about your health conditions. Information about you cancer and treatment history will be collected from your medical records as part of the study.