One Legged Situps with Ball March 31, 2008 by Cathe Friedrich Robert doing a One Legged Sit-up with Ball during STS Ab Circuits. Categories: Ab Circuits, Behind The Scenes, Blog, STSTags: Ab Circuits, cathe, exercise dvd, fitness dvd, One Legged Sit-up with Ball, STS, workout dvd Leave a Comment Related PostsStep Moves DVDDecember 12, 2011If You Have Back Pain, Are Back or Front Squats a Safer Choice?August 9, 2020Ditch the Fad Diets: Discover Long-Term Health with Sustainable Eating HabitsJuly 23, 2023