The ninth set According to the website of Grade Three, as of August 3, 20231,broadcast gymnastics in primary and secondary schools in Shanghai is the ninth set. The ninth set of broadcast gymnastics consists of eight sessions of unarmed gymnastics. Broadcast gymnastics can stimulate the exercisers with moderate intensity, which has a positive effect on improving the sensitivity of all joints of the body, strengthening the strength of large muscle groups and improving the functions of circulatory system, respiratory system and spiritual conduction system.