This event was a party that took place in 1960's Taiwan. Originally there was no plan to perform, but someone just happened to have a camera and the fun began. In this video you will see boxers such as Su Yuchang (who performs mantis) and Hung Yi Hsiang.
37 posture Yang Taiji form developed and performed by Chen Manching. Chen Manching was a student of Yang Chenfu.
found at: http://www.youtube.c om/watch?v=Fl2mvyjHY S0