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 PostsWeight Maintenance: 3 Hormones That Make It Easy to Regain Weight Once You’ve Lost ItMay 19, 20135 Science-Backed Studies That Show How a High-Sugar Diet Damages HealthSeptember 5, 2021Practice Makes Perfect!August 16, 2006