Single leg V-Sit March 30, 2008 by Cathe Friedrich Cathe doing a V-Sit during STS Ab Circuits. Categories: Ab Circuits, Behind The Scenes, Blog, STSTags: Ab Circuits, cathe, exercise dvd, fitness dvd, STS, V-Sit, workout dvd Leave a Comment Related PostsPerfect Diets? Why They Might Not ExistJuly 17, 2016Cathe’s October 2024 Workout RotationOctober 1, 2024Cathe’s January 2016 Workout RotationJanuary 3, 2016