When you hit the ground, the ground hits back. We mean this quite literally. Hit The Ground workout utilizes the third law of Newtonian Mechanics to create an equal and opposite reaction to every action. High Knees work because our feet hit the ground. Plank Hold is so hard because we push against the planet as the planet pushes against us and Shoulder Taps, Plank Rotations and Plank Jacks are so difficult because we fight against the pull of the planet's gravity well. Totally changes your perspective, right? Add EC. You know you want to.
Extra Credit: 1 minute rest between sets.