I agree with Morpheus and Perfectlyimperfect. When we went to buy a workout machine, we learned that ellipticals are much easier on the joints, while still providing a really good workout. We bought one and it really is great. I've had periods of time that I couldn't do ANYTHING, but when I can work out, I really like my elliptical. It has the arm movement, but its the legs that really get your heart rate up there. Try out a number of them, though. They are NOT all the same. You need to find one that 'fits' you. Mine has adjustable stride - some don't, and if the stride doesn't fit you, it will really get uncomfortable after a while (I've experienced that using ellipticals in hotels...ouch!) Good luck!
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