Treadmills provide a variable resistance workout that can be adjusted to match any fitness level, from a world-class runner to someone recovering from a knee surgery. To operate with the various resistance settings and display the workout data, the treadmill has numerous mechanisms that work together for the overall function of the treadmill. These mechanisms include the motor, frame, design, display console and adjustments.
Motor
The motor is the most important mechanism to a treadmill, as it operates numerous features including the running belt and incline feature. Most motors range from 1.0 to 4.0 horsepower, based on the intended use. For example, treadmills designed for walking use a 1.0 to 2.0 horsepower motor, while treadmills designed for runners use a 3.0 to 4.0 horsepower motor. The treadmill motor pulls electric current from the power supply that transfers the power to rotate the treadmill's pulleys and rollers that operate the belt and drive the treadmill.
Folding
Treadmills designed with a space-saving design feature a folding mechanism that allows you to store the treadmill when not in use. Some of the folding mechanisms have a power function that use power from the motor while basic models feature a manual folding mechanism. A manual folding mechanism utilizes an adjustment knob and hydraulic cylinder that are used to lift the deck into a vertical position.
Cushioning
Running on a treadmill places a significant amount of stress on your knees, hips and joints, but a cushioned deck mechanism acts like a shock absorber to reduce the stress on your joints. For example, a cushion flex chock absorption deck absorbs a small amount of shock during every stride. The cushioned deck mechanism, however, still provides a solid surface to support your bodyweight.
Adjustments
Treadmills feature speed and incline controls that include adjustment mechanism features. You can adjust the speed and incline with push-button controls located on the display console or side handles. The display console shows your current resistance setting along with additional workout information such as heart rate, time and calories.
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