1 rich Libsyn https://www.libsyn.com 90 600 A brand new study evaluates the potential benefits of sprint interval training (SIT) on run performance and cardiorespiratory fitness. This week on Scientific Strength. Scientific Strength http://rdellatraining.com <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/3755907/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/item/3755907