00709naa#a2200169#i#450# EN\\bibl\100363 20250627072230.5 2686-7788 20250624b2025####ek#y0engy0150####ca RU IMPROVING SPEED AND STRENGTH QUALITIES IN THE TRAINING OF THE LONG JUMP WITH A RUN-UP Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2025 3 с. Journal article local Высшее образование. Высшая школа. Подготовка научных кадров. 378 Yaroshevich Irina Naumovna angtu.editorum.ru