Side Lying Crunches on Ball March 31, 2008 by Cathe Friedrich Denise doing Side Lying Crunches on a ball during STS Ab Circuits. Categories: Ab Circuits, Behind The Scenes, Blog, STS Leave a Comment Related PostsExercise Around the World: Which Countries Are the Most and Least Physically Active?August 5, 2012Intensity – Cathe and CedieSeptember 1, 2010Can You Lose Most of Your Fitness Gains in Only Two Weeks?June 11, 2017
