What goes around comes around and that includes Hula Hoops. The totally hip toy fad of yesteryear has spun …(sorry) back into the spotlight as the fun fitness craze of the decade. More and more people have begun hooping it up to slim down and firm up either on their own or in fitness classes. "It’s a reminder of your childhood days," says Hula Hoop fitness coach Sheryl Wilson, 30.It’s a great way to work out, burn a lot of calories, and tone all the muscles in the body," she adds, "all while having so much fun that you don’t even know you’re working out." Fitness guru Janet Yen, 34, says: "It’s old fashioned, wholesome fun, and it’s easy." … speak for yourself.