1. can be used to slim the waist, and it is also a good helper for leg and arm bodybuilding.

2. Squeeze acupuncture effect: give the abdomen and waist a squeezing effect like massage and acupuncture.

3. Treatment of constipation: A spring hula hoop is often wrapped around the waist, which can stimulate the intestines, treat constipation and effectively eliminate the pain caused by constipation.

4. Weight reduction: The central force generated by the spring has an exercise effect that is three times heavier than the actual weight. Through the spring massage to the waist and a lot of body movements when turning the hula hoop, you can effectively burn body fat and achieve the purpose of fitness while losing weight.

Disadvantages:

1. Hula hoop is a simple waist exercise with little exercise. It is not realistic to achieve slimming effect by this action alone. Moreover, the twisting and swaying part of the hula hoop is just at the junction of the thoracolumbar spine. When the spine is excessively twisted or the abdominal pressure suddenly increases, the pressure in the spinal canal may suddenly change, leading to the rupture of blood vessels.

2. Research into fitness should be scientific, otherwise it will be counterproductive. The first thing to note is that the exercise time should not be too long. Normal adults should exercise continuously 15-20 minutes. Hula hoop should not be too heavy, the size should not be too big, and the weight is probably the degree that the index finger and middle finger can bear the weight; People with lumbar muscle strain, spinal injury and osteoporosis are not suitable for this sport.