They learn to balance on one foot; walk on their tiptoes; and climb, hop and skip. Three-year-olds can pedal, use a handlebar and operate three-wheeled vehicles, such as tricycles, but they do not have the balance required to operate a bicycle with only two wheels.
Yoga and Pilates are also very common exercise classes, and there are dozens of different variations of these as well. Chances are, if one is looking for a specific type of exercise class, there is a gym somewhere that offers it.
Cycling. Cycling is another type of aerobic exercise with wide appeal and value. You can use a stationary or regular bike. Cycling may be ideal for individuals who, due to arthritic or other orthopedic problems, are unable to walk for an extended period of time without pain or difficulty.