Não, esse exercício não funciona Você já viu alguém fazendo ele #treino #academia #bodybuilding #
1 Jan 2024 · 1 min

0:35
In this short YouTube segment, Speaker A explains the importance of the force vector when performing a rotator‑cuff exercise standing with a dumbbell. He contrasts the direction of force in free‑weight movements (gravity pulling down) with that of a pulley system (horizontal pull) and asks what the force vector is when using a free weight. Speaker B immediately dismisses the movement, stating that it does not exist. The clip serves as a brief biomechanical critique of a commonly shown rotator‑cuff exercise.










