0458無記無記名 (オッペケ Sr33-O7ZF [126.33.124.159])
2023/06/21(水) 23:21:24.78ID:6wqd73lvrhttps://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.