Calisthenics are making a big comeback in boot camps and many of the high-intensity interval training (HIIT) routines. Group classes in gyms will use HIIT and exercises like jumping jacks to get the heart rate up, increase speed and agility, and burn fat. Jumping jacks are a true total-body workout.
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Calisthenics are making a big comeback in boot camps and many of the high-intensity interval training (HIIT) routines. Group classes in gyms will use HIIT and exercises like jumping jacks to get the heart rate up, increase speed and agility, and burn fat. Jumping jacks are a true total-body workout.
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