I bought one about 15 years ago, and occaisionally still use it. It is a HARD workout if you do the arms and the legs together. It's a little tricky to get the stride and arms thing going together at first, but you'll get the hang of it pretty quickly. I think they were basically the precursers to modern cross trainers.
Do they work? Of course. If you use it. So does walking, running, jogging, swimming, climbing up and down bleachers, jumping rope...any activity that gets your heart rate up there and burns calories. Will you use it? That's the bigger question. There are probably more unused Nordic Track machines around than any other old piece of exercise equipment. If you are looking for a used one, that's good, because you can find them at garage sales or on craigslist.org or freecycle.org. If you are going to spend a lot of money, I'd look at a modern elliptical before a Nordic Track. I find my Nordic track gives me a lower back ache due due having to lean forward against a hip pad which is only slightly adjustable. The upside to finding a used one is that it's a cheap, low impact workout where you control the intensity.
Mel
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