The research aims to design an aquatic rehabilitation program to learn the
backstroke and treatment hyperkyphosis for primary stage students. The two
researchers used the semi-experimental method by using the pre and post
measurement for one experimental group on a sample selected intentionally, it
consisted of (20) students. The results of the research have shown that the positive
effect of an aquatic rehabilitation program on the students with hyperkyphosis
resulted in an improvement in the variables under consideration ( increase in the total
length of the body and the length of the spine, improvement in the performance skills
of the Backstroke, improvement in the measurements of the angles of the thoracic
spine region when performing various movements "upright, taking maximum
inspiration, maximum output exhalation", improvement of the physiological
measurements such as (inspiratory vital capacity, forced vital capacity, forced
expiratory volume in 1 second , peak expiratory flow , blood pressure "systolic,
diastolic ", pulse at rest) .