Vasetskyi , D. and Dolbysheva , N. 2026. Scientific and theoretical substitution of improving the structure and content of physical training of wrestlers at the stage of preliminary basic training. Sportyvnyi Visnyk Prydniprovia. 1 (Mar. 2026), 135–147. DOI:https://doi.org/10.15802/2071-1476-2026-1-13.