2. Because the hula hoop mainly depends on the waist shaking, the waist muscles, abdominal muscles, lateral lumbar muscles and other parts are fully exercised. Insisting on exercise can achieve the effect of tightening the waist and abdomen. However, it should be reminded that people with lumbar muscle strain, spinal injury, osteoporosis and the elderly are not suitable for this sport. In addition, before shaking the hula hoop, you should do some stretching exercises to stretch the ligaments to avoid sprains. It's best not to shake your neck
This is a plastic ball, which is used to help turn.