Core Sculpt uses High Knees and some basic core training exercises to raise your body temperature, challenge tendon strength and VO2 Max performance and work the main abdominal groups. The floor exercises provide a handy active recovery stage which means High Knees are performed at high intensity with lots of pumping of the arms and with the knees coming up to waist height, each time. Remember to land on the ball of your foot. Add EC, com'on. Add it!