Elliptical trainers, gliders and cross trainers are usually loosely grouped together as “elliptical” machines. All of these machines focus on movement fluidity, but despite the similarities, the machines have different designs and styles. The main differences becomes apparent when you look at the movement path and stride length of the machines.
Gliders
The pedals of the glider move back and forth on a fixed plane. Gliders tend to move in an arc. All gliders have extended moveable handles, allowing for a full upper body workout. You control the stride lengths of your workout, meaning the farther you extend your legs forward and backward, the longer the stride length will be. Gliders are inexpensive and are made with a basic, lightweight metal frame.
Ellipticals
A standard elliptical trainer moves in an elliptical path, very close to your natural movement. You push the pedals down and forward as the pedals move through an ovoid-shaped motion. Elliptical trainers can vary in whether they have moveable handles. Trainers that provide an upper-body workout are called cross trainers, and ones that have fixed handles are called ellipticals. The stride length is fixed in both styles.
Benefits
Both the glider and the elliptical trainer provide a smooth and gentle workout with minimal stress on the joints. An elliptical provides for a more intense workout because the stepping motion causes the knee to bend and the thighs to move up and down. A glider is perfect for people suffering from knee injuries because much less emphasis is placed on knee movement. Gliders also tend to be less expensive because they have fewer features.
Drawbacks
Elliptical trainers are the more expensive of the two machines, and gliders are less durable and have much shorter warranties than their elliptical counterparts. Not all elliptical trainers have the extended moveable handle features, so you will not get the same upper body workout that you will from a glider. Some people will find the glider workout is less intense because of the easy flowing movement of the legs. Because of the required knee movement in an elliptical, it might not be ideal for you if you have knee injuries or arthritis.
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