For 100 fitness professionals who packed a hotel ballroom in Reston last summer, it was difficult to tell what caused the bigger stir: the strangely curved floor device that looked like a banked turn ...

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The next successful group exercise form, step aerobics, was created by a woman, Gin Miller, as a rehabilitation device for her own knee injury. Miller sold her ‘exercise concept’ to Reebok that then ...

There's a big birthday happening this year, and no, it's not mine. (Although that does happen to be this Friday. Thanks for asking!) But as we bust out the candles -- and the leg warmers -- to ...