Non-Stop Punches and Kicks! July 14, 2007 by Cathe Friedrich From Start to finish Kickbox is non-stop cardio! Categories: 4-Day Split Series, Behind The Scenes, BlogTags: 4 day split, boot camp, cathe, fitness dvds, Higher Intensity Step, kickbox, Lower Intensity Step Leave a Comment Related PostsRobert doing a Wide Grip Pullup.March 17, 2008Strong Bones Need More Than Calcium to Stay HealthySeptember 18, 2011The Science Behind Hiit Training: Why It’s So EffectiveOctober 19, 2014