Stationary bikes have been around for some time. They also provide a good cardio workout as well, while limiting impact and injury to knees and other leg joints. They typically do not fold up and can tend to take up space. Exercise bikes fall in the mid to higher price range compared to other types of home fitness equipment, including free weights, ski machines, ab machines, and hybrids like exercise riders. Be sure to research a piece of home exercise equipment... and you have promised yourself that this time you are really serious about improving muscle tone and energy levels while controlling weight and feeling great... start by performing a workout program of bodyweight calisthenics exercises. The Ab Slider, Ab Wheel, and Ab Trainer are other examples of equipment designed to target abdominal muscles. As with most types of fitness equipment, and again, price often reflects quality. Another popular type of home fitness equipment, and again, price often reflects quality. Another popular type of home fitness equipment uses an adjustable metal frame and a gliding board or bench