Elliptical Trainers and Linear Motion
An elliptical or elliptical trainer is a relatively new entry into the world of fitness and the gym and combines the movement of walking with that of climbing stairs. Because of the arm levers, ellipticals give you a low-impact, full-body workout while maintaining an upright position. What they also demonstrate is how linear motion is used in gym equipment.
The elliptical trainer process is simple and would not be possible without linear motion. The large, flat pedals are attached to a crank similar to a bicycle chain. Pressure on this crank rotates the front of the pedal in a circular direction and this combination of linear and circular motion results in the overall elliptical motion.
Elliptical trainers have become very popular in recent years, mainly because it is a good way to exercise the body and minimize stress on the user’s knees, hips and back. The risk of injury is also greatly reduced since the machine does not continue without you like a treadmill, nor are you likely to fall off it. The elliptical also “works your arms and legs together, so your workout will be more intense in a shorter amount of time.” – font – http://www.ifafitness.com.
In addition to the above, there are several other key benefits to using elliptical trainers over fitness movement machines like treadmills. It also provides a weight-bearing exercise, which is good for the overall fitness of the body and can help prevent osteoporosis. The main benefit though is that the elliptical is unique in providing a combined upper and lower body workout. In fact, there is no other fitness equipment that works so many muscle groups.
As with any piece of equipment, choosing the right one for you and maintaining it correctly is very important. Many trainers come with some rail lube included, which will need to be applied annually. Regular lubrication reduces friction between the rail and the wheel and will increase the life of your trainer. It will also positively influence the life of your equipment’s bearings.
This is true for any piece of machinery that uses linear motion guides or rails. The smooth movement and precise positioning, which can cope with high loads and speeds, offers the perfect solution for those looking for gym equipment of this nature.
Advances in linear motion technology, researched and produced by companies like THK and SKF, mean that today’s gym equipment works better and longer than ever before. The success of the elliptical trainer is a direct example of these achievements.