00778naa#a2200181#i#450# EN\INFRA-M\bibl\112127 20260210031551.2 1998-1740 20251230b2025####ek#y0engy0150####ca RU Monitoring and Comparative Analysis of the Level of Development of Speed-Strength Abilities of Gymnasts Aged 10-11 of the Kimry Youth Sports School (Tversky Region) and the Sports School No 1 of the city of Petrozavodsk Journal article Moscow INFRA-M Academic Publishing LLC. 2025 3 с. Journal article local Физическая культура. Спортивные игры. Спорт. 796/799 Kremneva Victoria Nikolaevna Syvorotkina A. S. zh-szf.ru