Thanks! 

I’m not that familiar with isometrics training tbh but the tai chi standing practice within the Yang style can be pretty brutal even with the emphasis on releasing tension within the posture. 

Yes it has things in common with horse stance training from other eastern arts. 

cristaiji

alter_native

Tai Chi - what is ‘standing practice’? 🧐

Very interesting! From a more Western perspective I'm assuming the holding of static postures is a similar practice to isometrics. Lately, I've been implementing more isometrics into my training routine for strength, but also to keep my tendons in shape. The Horse Stance is another form of static posture that has it's roots from the East I believe. 

Can't wait to read more of your posts!