Kalinichenko, I. O., & Dyachenko, Y. L. (2013). State changes in posture and arch of the foot in children aged 4 - 6 years with hypermobility of the joints under the influence of rehabilitation activities in schools. Pedagogics, Psychology, Medical-Biological Problems of Physical Training and Sports, 17(8), 26–30. Retrieved from https://sportpedagogy.org.ua/index.php/PPS/article/view/487