The Gym Class, Reinvented

Health clubs and trainers are embracing the intense half-hour session. Here are the best group-fitness options.

Thursday, September 01, 2011

Crunch Fitness
CITY: Los Angeles, Miami, New York, San Francisco
CLASS: Explosive 30
This 30-minute class uses eight one-minute exercises like jump lunges and jump squats to increase explosiveness, endurance, and speed.

Photo Courtesy: Crunch Fitness
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