The Gym Class, Reinvented

Photo by: Courtesy of Equinox
Equinox-
CITY: New York, Chicago, Los Angeles
CLASS: ViPR
What distinguishes this class is its primary tool, a large rubber cylinder (known as a ViPR) that is said to be ... more 
Photo by: Courtesy of Equinox
Equinox-
CITY: New York, Chicago, Los Angeles
CLASS: ViPR
What distinguishes this class is its primary tool, a large rubber cylinder (known as a ViPR) that is said to be the "evolution of free weights."

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Wed, Oct 12, 2011 2:05 AM EDT
By Ryan Halverson, DETAILS Health clubs and trainers are embracing the intense half-hour session. Here are the best group-fitness options.