It looks like a treadmill, but there's a lot more to this up and coming piece of fitness equipment. The Thorotread was featured at the Health & Fitness Business Convention in Denver last month. It takes the best of the treadmill and adds a new component that the manufacturer refers to as "resistance retro walking." Basically, the machine helps you walk backwards while pulling on weight.

The grab bar on the front of the machine releases so you can pull back on it while walking backward. The amount of resistance can be adjusted with a simple push of a button. In addition to the benefits of a regular treadmill, the Thorotread's backward action helps work different groups of muscles. The Thorotread will be available for purchase in Fall, 2008.

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About 20 years ago, Nike introduced the Air Max Light shoe, which was fairly popular for a while until it was overshadowed by a newer version, the Air Max 90.

Well there are now more than 25 versions of the Air Max, all of them available in various colors for men and women. But, Nike is going back to its Air Max roots with the Nike Air Max Light Retro Running Classic shoes.

A couple of versions, like the ones pictured, are available exclusively through JD Sports. However, there are plenty of other versions from which to choose. Check out the gallery and see which ones you want to collect next!

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