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 Posts5 Benefits of Working Out With a Medicine BallOctober 6, 2013Jai and Amanda in Athletic TrainingJuly 12, 20115% Stronger in 4 Weeks!February 10, 2008