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By
sammyb103
(
10 Dec 2008)
I have bad knees and have been advised not to run on a tredmill. several people told me that the elliptical would be a great replacement because it is not hard on your knees, but my question is whether or not the elliptical is a legitimate cardio exercise ...
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By
gmdexpert
(
11 Nov 2008)
Can someone recommend a good cardio workout?
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