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 PostsIs There a Threshold Intensity at Which You Need to Train for Muscle Growth?May 14, 20173 Mineral Deficiencies That Female Athletes Need to Be Aware OfMay 16, 20127 Tips for Living Better and Eating Well with a Food IntoleranceJuly 3, 2022