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Most Sanda schools in China teach the Bian-Tui = Roundhouse Kick like this, and yes, it's not as powerful as the Muay Thai Roundhouse Kick [ Ссылка ] Some schools also teach MT-like roundhouse kicks. But here are a few reasons why sanda roundhouse kicks are often taught like this:
In Sanda, you are more afraid of getting thrown (there are a lot of powerful takedowns) and you can't defend yourself with elbow strikes once your opponent grabs your roundhouse kick. You are also not allowed to do a spinning elbow strike or swing the back of your fist if you miss your roundhouse kick and your back faces your opponent. So kicking fast and pulling back fast is very very important. Most fighters actually kick with the ankle and not with the shin. They don't twist on the standing leg "that" much, and try not to learn back that much. They care more about reach and speed when they do a roundhouse kick. You don't have to step out of the center line or switch legs in order to kick with the back leg for more power. If it looks like your opponent can grab your leg, you can even turn your hips straight after impact and pull your leg back in a straight line like after a normal front kick. They actually teach that. In Muay Thai it's ok to put all the power into the roundhouse kick and if you miss, its ok if you twist and get back to your fighting stance asap. There are still a few things you can do while spinning. If you turn around in a sanda fight, you trainer will slap your face with his shoe for being stupid.... after the fight :) But sometimes you will also see MT like roundhouse kicks, they also teach that but traditionally it's done like shown in the video. The sport changes very fast. There was even a time where knee strikes were allowed (around 2001 or 2002). If there would be elbow strikes in sanda, most of the takedowns would not work and I'm pretty sure they would teach the roundhouse kick differently.
