Does limited internal rotation of the shoulder lead to injury? — The 'numbers to watch' differ between high schoolers and pros

IntroductionMany teams measure the 'internal rotation' and 'external rotation' of a pitcher's shoulder during pre-season ...

[Anatomy × Clinical] Why does adding 'external rotation' make joints move smoothly? The unknown rules of movement axes and joints

In physical therapy and training settings, have you ever been instructed to "align your elbow and knee positions" or "move while opening slightly outward"?In fact, whether a joint moves smoothly or ge ...