Feb. 11, 2011 -- Working out with a hula hoop burns about as many calories per minute as step aerobics, boot camp, or very brisk walking, a new study shows.
For the study, researchers recruited 16 women between the ages of 16 and 59 and had them learn a 30-minute aerobics routine that uses weighted hula hoops twirled around the waist, arms, and legs.
After two practice sessions to get familiar with the moves, volunteers wore portable oxygen analyzers and heart rate monitors to record their exertion.
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