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To me, there's are variety of different mechanical the "geometry" designed elliptical machines. Some good and some bad. Some have wheel and sliding bars and some have only wheel geometry design. Some have large floor space foot print and others take up less floor space. Some have large ankle tilt and some have little ankle tilt. Some are designed for long legs and some are designed for shorter legs. Just like peddle bikes, one size does NOT fit all. One should be "fitted" to the appropriate physical size and geometry motion elliptical machine - for each person's unique body size and movement style. If the elliptical isn't comfortable, then people stop using it. And their brand new elliptical machines sits in the corner and collects dust.
As a suggestion, visit many different fitness stores (even Sears store) and try each elliptical unit on display. How does one machine compare to the other? How is its leg reach? How is its ankle tilt? Does it have sliding parts or only wheel design? Personally, I do NOT like those arm / roller bar system designs. A large wheel with real steel bearings (not plastic bushings) are better for long term quality. And, ask the Sales Rep many, many questions. Questions are free. Thus, do ask the sales person as many question as you want.
Once you get your 3 x "most comfortable" TO YOU elliptical machines narrowed down, do wait for one of them to come on sale. Many elliptical machines are on seasonal sale each quarter. Sometimes, on sale for 50% off - especially at Sears.
If wondering, I have my eyes set on a Sears elliptical unit. One of their higher priced units. If / when its "on sale" this fall, we'll use our saved up Sears points. Thus, getting their elliptical unit for Free. (indirectly free).
Again, alway focus on Most Comfortable fit 1st, mechanical design 2nd and price as 3rd criteria. Like a glove, it "has to fit you". If not, it hurts the body, is uncomfortable and soon after, one stops using it. Thus, proper design "for you". Think of brand / model last.
Hope this helps...
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