Gait analysis number one. Please state your name: Position yourself 2 to 3 meters away from the Tetra Gamma Circulaire. Walk towards the Tetra Gamma Circulaire in a straight line . Position yourself one meter away to the left of the Tetra Gamma Circulaire. Walk from left to right in front of the Tetra Gamma Circulaire. Turn your back to the Tetra Gamma Circulaire. Walk away from the Tetra Gamma Circulaire. Position yourself 2 to 3 meters away from the Tetra Gamma Circulaire. Walk towards the Tetra Gamma Circulaire on a zig zag line.