The utility model relates to the technical field of hula hoops, in particular to an
aerodynamics-based hula hoop which comprises a hula hoop body, flow guide fins are evenly distributed on the outer side of the hula hoop body, large protruding points and small protruding points are evenly and alternately distributed on the inner side of the hula hoop body, the flow guide fins reduce rotation resistance through
aerodynamics design, and the flow guide fins are evenly distributed on the outer side of the hula hoop body. The centrosymmetric
layout ensures the stability of the
gravity center and prevents the convex points from influencing balance during
massage, and meanwhile, during rotation, the flow guide fins can guide
airflow during rotation of the hula hoop, improve the rotation smoothness, generate auxiliary propulsive force and reduce the physical output of a user. The flow guide fins are combined with the large protruding points and the small protruding points to generate pulse type
massage of'wave back pushing ', the large protruding points and the small protruding points make contact with the
waist and the
abdomen when the hula hoop rotates, difference is generated through different protruding distances of the large protruding points and the small protruding points,
friction force between the hula hoop and the
waist and the
abdomen is increased through differential contact, and slipping is prevented.