Effect of Thera-Band Versus Swiss Ball Exercises on Postural Stability in Post Mastectomy Lymphedema

Inclusion Criteria: * Patients are females. * Patient with post mastectomy unilateral lymphedema. * Their age will range from (30-50) years. * Patients will be given their informed consent. Exclusion Criteria: * Musculoskeletal disorders that will impair performance during training and tests. * Uncontrolled cardiovascular or pulmonary diseases. * Neurological and renal disorders. * Metabolic or vascular disease with a neurological component such as diabetes. * Malignant conditions. * Primary lymphedema. * Psychiatric illness, severe behavior or cognitive disorders. * Uncooperative patients. * Pregnancy.