The Doctoral dissertation titled (The Effect of Pilates Exercises in an Aquatic Medium on Improving Bone and Muscle Health and Some Functional and Bio-motor Variables for Female Patients with Osteoporosis Aged 50-55 Years) by the female researcher (Samar Hadi Amin) was discussed at the College of Physical Education and Sports Sciences for Girls, University of Baghdad. The discussion committee consisted of Prof. Dr. Suad Abdul Hussein from the University of Baghdad as chairperson, Prof. Dr. Ahmed Abdul Zahra Abdullah from the University of Al-Qadisiyah as an external member, Prof. Dr. Mawaheb Hamid Numan as a member, Prof. Dr. Nada Abdul Salam Sabri as a member, Assistant Prof. Dr. Intidhar Jumaa Mubarak as a member, and Prof. Dr. Ghosoon Natiq Abdul Hamid as a member and supervisor. The study aimed to prepare Pilates exercises in an aquatic medium for female patients with osteoporosis aged (50-55 years), and identify the effect of Pilates exercises in an aquatic medium on improving bone and muscle health and some functional and bio-motor variables for female patients with osteoporosis aged (50-55 years). The female researcher concluded that the preparation and application of Pilates exercises in an aquatic medium suits the specificity of female patients with osteoporosis aged (50-55) years, and helps them in improving bone health by increasing bone density and reducing its fragility, and in the muscle health of female patients with osteoporosis aged (50-55) years by reducing the concentration level of creatine kinase (CK-M) in the blood, and increasing muscle efficiency and grip strength physiologically, and in improving the level of functional bone markers associated with osteoporosis by increasing the level of (alkaline phosphatase enzyme (ALP), calcium (Ca+2), magnesium (Mg+2), and inorganic phosphorus) and reducing the level of (total cholesterol (Total. C), daily blood sugar, and total protein) in blood serum, and in developing bio-motor variables (back muscle strength, trunk muscle flexibility backward and forward, and total comprehensive body balance), with superiority over female patients who receive rehabilitation without it in the hospital. The female researcher recommended not to exaggerate the difficulty of physical effort and its duration for Pilates exercises in an aquatic medium when rehabilitating female patients with osteoporosis, and to carefully consider the cellular regulation mechanism when preparing and applying each rehabilitation exercise of it for female patients with osteoporosis, that the rehabilitation tools and means suit the specificity of female patients with osteoporosis, their age, and their gender characteristics, and the possibility of providing these tools and means in rehabilitation centers according to the actual need for them, and investing the expertise of academics in sports rehabilitation to develop the expertise of therapists in rehabilitation centers when preparing and applying each of the Pilates exercises in an aquatic medium for female patients with osteoporosis. This study achieves the fourth goal of the sustainable development goals, represented by Quality Education.