Side Plank March 30, 2008 by Cathe Friedrich Cathe, Lorraine and Robert doing a Side Plank during STS Ab Circuits. Categories: Ab Circuits, Behind The Scenes, Blog, STSTags: Ab Circuits, cathe, exercise dvd, fitness dvd, Side Plank, STS, workout dvd Leave a Comment Related PostsIntensity – Lateral LeapsSeptember 1, 2010Current STS Presale Prices End March 10thFebruary 26, 20085 Snacking Mistakes That Make It Harder to Stay LeanFebruary 26, 2017