Yelanska , O., and O. Demidova. “Karate As a Means of Improving the Level of Physical Fitness of Middle-School Students”. Sportyvnyi Visnyk Prydniprovia / Prydniprovia Journal of Sports Science, no. 3, Dec. 2025, pp. 53-63, doi:10.32540/2071-1476-2025-3-053.