I also have never seen any Taiji person did roundhouse kick in my life. The OP may put up the 1st Taiji roundhouse kick clip to the public.But in Yang, Chen, Wu and Sun I have never trained a roundhouse kick
Nothing magical. He changed the direction of the pull. Instead of pulling back the guy ended up pulling upward. This happened when he lowered his stance. Fitness uses similar methods to move the front line. It's all nifty mechanics and some muscle.
The roundhouse is probably one of the most diverse kicks. Practically every art trains are least one form. Like KFW said if Tai chi concepts informed this guys kicking, it's basic fa jin, explosive waist power, as opposed things like straight forward kicks like teeps that are found in some other CMA and SE Asian MA.Is the video valid? How is the power of the tai chi kick compared to muay thai, karate, and taekwondo roundhouse kicks, about the same, more, or less?
Just for the sake of this discussion. Will it be more impressive that when his opponent pulls his left arm, instead of using force againat force, he borrows his opponent's pulling force, moves forward, and single leg take down his opponent? That will fit Taiji principles "borrow force, yield, sticky, follow, ..." much better.