はあ、ここでもケツを支点としたときのバーベルの位置について語られてるけどw

https://www.crossfit.com/essentials/anatomy-of-levers-part-6-lever-efficiency


For example, if we consider the hip as the fulcrum, the back as the beam, and a barbell placed across the shoulders as the load in a back squat—specifically a high-bar back squat (below left)—we observe that this lever is inefficient by definition.