TY JOUR TI Methods of Using a Skipping Rope As a Sports Object in Physical Education Lessons in Elementary School KW physical education lesson KW physical exercise KW sports game library KW jump rope KW ergonomic qualities KW biomechanics of movements JO Primary Education AU Ovchinnikov, Y.D. AU Yakunina, V.A. PY 2023 IS 11 PB INFRA-M Academic Publishing LLC.