A few projectors project the images on the ground from the ceiling, the images content are several part of skin which are sweating. In the image site put a running machine, install two to three microphones on this machine.
When audience running in this machine, the video start to play, the speed of this video's play has the mutual action with the speed of running machine. With the audience's running speed's increase, the skins in the image are start to twisty.
Microphone enlarge audience's sound of breath, image's vision effect between relax and convulsion, to make the same image into different vision and mental feelings because of the different of the environment conditions.