Mindy Mylrea, creator of Gliding, Tabata Bootcamp, and the 2015 PFP Trainer of the Year, shows a great way to not only work the entire core, but also how to engage the shoulders and triceps to get more bang for your buck. The Prone Core Slide, performed with the Gliding discs, has both progressive and regressive options and helps to create core stability, posture, upper body strength and alignment of the spine.