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 PostsDo Gut Bacteria Influence Your Metabolism?September 5, 2016“DVD and Download – Push Ups?September 5, 2010Introducing “Triple Tracks Audio” ™July 11, 2013