Run! consists of 25 poles with LEDs on top, which run along with runners and speed up over time. This way Run! tries to stimulate people to change their current pace just a little over a brief distance. This can make runners train more intensively for a brief period, but also stimulate people who walk by to run a little (Megens, Nautelings, van Hout, Janssen & Vos, 2016)