The article deals with the necessity of a differentiated approach in the construction of recreational gymnastics classes with students of 5â9 grades with different types of constitution. On the basis of computer vision technology âCV-Trainerâ and additional examination the very low number of children with muscular type of constitution among both boys and girls is revealed. Differences in the angles of flexion and extension in the hip joints of girls of asthenoid-thoracic and digestive types at maximum load on key points of the body were shown. It is also noted that the force of impact on these key points is higher in digestive type girls. Therefore, we do not consider the averaged approach to conducting recreational gymnastics appropriate. Theoretical and methodical bases of composing complexes of health-improving gymnastics taking into account age periods and type of constitution are also emphasized. The logic of construction of the system of health-improving gymnastics classes should proceed from general organizational provisions, selection of methods of work, exercises themselves, indication of dosage of their performance.