Between a stationary bike and a treadmill, more people tend to gravitate toward the former as a form of cardiovascular exercise. A stationary bike is preferred by those who are used to high-intensity workouts. However, in a lot of gyms, you will probably notice that the treadmills are the ones that are taken up, while not many people use the stationary bikes. This is unfortunate because a stationary bike is less strenuous to one’s knees than the treadmill. Running for …