Treadmill Mechanics
Treadmills are stationary machines that allow you to walk or run in place. They are comprised of a moving belt with two rollers underneath that are powered by a motor. The belt moves in a continuous circular motion that is driven by a speed you select. This rubber belt simulates moving forward on a road. The idea is to walk or run as fast as the belt moves to keep up with it. Treadmills work as a machine for an aerobic workout, interval training and/or convenience.
Aerobic Workout
Treadmills are an effective way to increase aerobic and muscular fitness. When you use one regularly for at least 30 to 40 minutes, three to five times a week, a treadmill can increase your endurance, stamina and strength. By challenging your body to keep up with the moving belt, walking or running on a treadmill increases your breathing, heart rate and aerobic capacity. It also strengthens the glutes, hamstrings, quadriceps and calf muscles as they are forced to continually move and work against the belt.
Speed Training
Many athletes routinely do interval training on a treadmill. With preset programs that automatically vary the speed and incline or the ability to manually change these settings yourself, you can easily customize a workout. With interval training, the goal is to increase your heart rate to a high level for short bursts with a recovery period between bursts. For example, if you are running at 6 miles per hour, you could increase to 7 or 8 miles per hour for 1 minute and then go back to 6 for 1 minute to recover. This is an effective way to burn fat and calories, while increasing speed and strength in a controlled environment.
Convenience
A treadmill also works as a handy way to exercise. It allows you to walk or run at virtually any time of day, in any weather. Because running or walking outdoors in extreme temperatures can be uncomfortable or dangerous, some people prefer to exercise indoors where they can avoid heat, humidity or cold temperatures. Working out on a treadmill also eliminates the risk of injuries caused by uneven terrain, and using one in your own home or gym offers personal safety for early morning or late evening runs.
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