You may have heard about Spinning classes. They are popular during winter months here in Illinois. You get to work up a sweat and can ride hilly terrain as well as race across flat sections all from the comfort and safety of your stationary bike. And it takes care of the question of whether a group of riders can operate without running red lights and blowing through stop signs.
Now this technology is being introduced to prisons where inmates are fighting not only the emotional stresses of incarceration but also the battle of the bulge from relative inactivity.