Elliptical trainers provide a smooth, low-impact workout for your cardiovascular system that saves on joint fatigue. Your feet move in a near ellipse as they simulate pedaling a bike or running. Unlike being on exercise bike, however, you stand during your routine. And unlike the experience of a treadmill, your feet don't loss contact with the surface.
Many models provide hand levers that work your upper body while your legs move in integrated movements. These levers can help to power the machine while resistance to the momentum of the wheels is constrained by mechanical friction or magnetic force. The incline of the pedal can be adjusted on some models to involve a range of muscles. Adjustable resistance controls help you increase your stamina.
Three major categories of trainers are distinguished by the placement of the device that provides for the "elliptical" movement of the pedals and the momentum of your stride. In front wheel elliptical trainers, the wheel is placed under the handlebars. In rear wheel ellipticals, the wheel makes its turns behind the user. A third option, center drive trainers, place the drive devices fore and aft of the pedals; this allows for a stable machine with a relatively short footprint.
When researching your machine, you may want to consider monitoring devices that can give you pulse and heartbeat readouts as you exercise. Heart-controlled programs are available. Also look for program readout options. Tailor the size and stability of your machine based on your size and strength. And if you want to involve your upper body, look for cross-training models.
