Use a handle attachment or no attachment at all. The cable should be set to the top.
Walk a few steps away with the cable coming from the opposing side of the working arms. Internally rotate the shoulders.
From there, your shoulders should horizontally abduct and adduct, while your elbows stay in a fixed position.
Cable High Internally Rotated Reverse Fly 运动指南 - Shoulders 锻炼 | MuscleWiki