Hula hoops might seem like a fad from the 1950's, but did you know that using one can be a great form of cardiovascular exercise?

To use a regular hula hoop or a weighted hoop, hold the hoop against your back, put one foot in front of the other, and swing the hoop around your waist in a circular motion, shifting your hips from side to side. If you're able to hoop for 10 minutes or longer at a time you can consider it part of your aerobic exercise plan.

It's an easy way to burn calories, lose weight, and have fun! Hula hooping burns more than 150 calories per hour.

These days, Hooping, a grown-up version of the childhood activity, is all the rage. Participants use weighted hoops that make it easier to keep the hoop up and incorporate tricks or dance moves into their hula hooping routines.

Even celebrities are getting in on the action -- Liv Tyler likes to hoop with her son, Milo. Beyoncé Knowles, Marisa Tomei, and First Lady Michelle Obama are enjoying hula hooping's health benefits.