Pengaruh Latihan Lari Interval (Interval Running) Terhadap Kecepatan Lari Pad…

The aim of this study was to find out how much influence interval running training had on running speed at PTPN V U-15 Perhentian Raja SSB. This research was conducted in the PTPN V U-15 Perhentian Raja SSB field, Jalan Rambutan, Senapelan District in January-May 2023. In this study, researchers used a one group pretest-posttest design. The desired data in this study were carried out two tests,…