Abs Pilates 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 PostsDoes Muscle Turn to Fat?May 1, 2011Use the Rest and Pause Technique to Break Through a Strength-Training PlateauOctober 31, 20215 Ways Not to Get CaffeineApril 19, 2020