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 Posts5 Science-Backed Benefits of Low-Intensity ExerciseOctober 2, 2022HiiT – Double Wave PyramidNovember 2, 20095 Hydration Mistakes That Make a Workout HarderMarch 29, 2015