Rock McKinney 曾說：很多射手都說背肌用力，back tension，但我卻很難令學員明白背肌用力。肌肉不是你說那一組肌肉，你要工作了，用力啊，就可以的，首先你要有力。射箭用的背肌其實是斜方肌，及菱形肌。射箭的準繩決定於line of force 的物理方向的保持。這就取決於肩胛骨的後撤軌跡。而肩胛骨如何走，就是斜方肌工作。還有，當力不夠時，人自然會借力。到時背肌用力就破壞了。
"Hope is what makes us strong. It is why we are here. It is what we fight with when all else is lost." One of the best quotes ever from a video game. easliy.
I'm definitely going to buy a pair of mules (slippers) with a silly design, so that I can get a visitor to laugh at one of them. Then I can do this entire speech. :)
