It seems that the grooves pointing towards the centre of the platform make for an unnatural walking gait. At the start of a step, the foot will move inwards towards the line of travel. As the foot crosses the torso, it will move outwards again.
Whereas in a natural gait, each foot moves parallel to the line of travel.
See 2:10 of the video for how the shoes fit into the grooves using plunger pins, and how they move on the platform.
Whereas in a natural gait, each foot moves parallel to the line of travel.
See 2:10 of the video for how the shoes fit into the grooves using plunger pins, and how they move on the platform.