Supine Beginner/Intermediate Pull-up March 28, 2008 by Cathe Friedrich Patent Pending Brenda demonstrates a beginner/intermediate supine Pull-Up. Categories: Blog, Fitness Accessories, Push-Pull TowerTags: cathe, STS, STS Tower Leave a Comment Related PostsCathe’s June 2011 RotationMay 28, 2011The Benefits of High-Intensity Cardio and Metabolic TrainingFebruary 13, 2012Tired of Catching Colds, Keep Your Nose WarmJanuary 18, 2015