00694naa#a2200181#i#450# EN\\bibl\33935 20240503155700.5 2542-1840 20191213b2019####ek#y0engy0150####ca RU Pedagogical Conditions for Improving the Health of Senior Pupils Doing Athletics in Institutions of Additional Sport Education Journal article Kemerovo Kemerovo State University 2019 7 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 Kondratov Alexander A. Zhukov Rodion Sergeevich jcenter.kemsu.ru