This situation is generally not often exercise not often turn hula hoop novice, suddenly turn the clap hoop for too long, or hula hoop weight, resulting in muscle soreness. Any exercise should be gradual, do not violently overload at once. Choose the right weight hula hoop, the beginning of the day not too long, ten minutes can be, after two or three days without discomfort reaction and then extend the time. If the second day of back and abdominal pain, reduce the short time. Wait a few days to adapt and then increase the time.