This is a model of a machine that an astronaut might use in space. Due to the fact that astronauts face muscle and bone mass degeneration, they have to go through over 2 hours of exercise each day. In theory, this machine can make exercise more portable and more accessible compared to machines right now. After securing the device and yourself, you push down the plates with your feet and encounter resistance from repelling magnets. This would help build up the muscles of the leg.