More about Hooping

Hula hooping has been a type of exercise and play from as early as 500 B.C. The past few years have seen the re-emergence of hula hooping, generally referred to as either "hoopdance" or simply "hooping" to distinguish it from the children's playform.
Source - Wikipaedia

Kids naturally get a lot of exercise by running around and playing outside and just generally being rambunctious. At least that used to be the case. Since the 1980s...
Happy Living Magazine

Muscles that can be toned by hula hooping include: glutes, thighs, hips, legs, knees and abdomen. In addition, you can twirl a hula hoop with your arms to tone your shoulders and forearms.
3 Fats Chicks on a Diet

The hula-hoop has crept back into the American consciousness. Over the last decade, the hoop has found itself rediscovered as a dancing partner, performance art, meditation tool, and unintentional exercise device.

Hooping is cardio without counting. Hooping improves core strength, tones your stomach, arms, thighs and butt, is a low-impact, high-energy workout that can burn approximately 400 - 600 calories in an hour.