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Aerobic exercisers designed to simulate the motion of climbing stairs. These exercisers may consist of static or movable staircases; more often, they are steppers (also known as climbers), consisting of footpedals or platforms accompanying a drive system, side handrails, and/or front handlebars. These exercisers may be nonpowered or powered. Climbing aerobic exercisers usually include workout program modes to adjust resistance level; a monitor to display the workout time, distance, speed, calories burned, and heart rate; and handlebars with grip pulse sensors or wireless heart-rate tools; some may also have heart-rate controls to adjust the resistance level to suit the targeted heart rate. Climbing aerobic exercisers are intended to increase cardiovascular endurance by keeping the heart and pulmonary rate elevated for a continuous period of time. Additionally, they provide strength and endurance to the muscles of the lower body (i.e., quadriceps, hamstrings, gluteus, hip flexors, calves) and the upper body (i.e., arms, shoulder, chest, back).
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