StepIt.comâ€™s StepIt is a rocking foot pedal designed to increase blood circulation in the leg. The pedal simulates a true walking motion, which activates the legâ€™s calf muscle pump. The active calf muscle pump propels the venous blood back to the heart. When the leg is resting, the calf muscle pump shuts down and the blood circulation is significantly reduced. Designed for immobile individuals to prevent leg swelling, blood clots, numbness, pain, ulcers, diabetic foot and more.