@article {18285, title = {Strength Abilities: Immediate and Delayed Training Effects of Orthogonal Modes of Strength Training in Boys Aged 8 Years}, journal = {Teor{\`\i}{\^a} Ta Metodika F{\`\i}zi{\v c}nogo Vihovann{\^a}}, volume = {20}, year = {2020}, pages = {109-116}, isbn = {1993-7997}, author = {Ivashchenko, Olha and Khudolii, Oleg and Prusik, Krzysztof and Giovanis, Vasilios} }