All-time great Jeremy Wariner specialized in the 400 meters. He won four Olympic medals (three gold, one silver) and six World Championships medals. He is running here on the SMU high-speed force treadmill at a 44 second pace for the 400 meters. 3D video and 3-axis ground reaction forces were acquired at 1000 fps: Vertical forces (blue), Anteroposterior forces (red), and Mediolateral forces (green).
