Reader's Digest » Calories Burned in 6 Popular Gym Classes http://www.rd.com Tue, 28 May 2013 19:31:51 +0000 http://backend.userland.com/rss092 en-US Calories Burned in 6 Popular Gym Classes Get ready to move! Rev up your fitness routine by trying out a few of the latest fitness classes aimed to get you moving and sweating. So how…

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