What equipment is used for External Rotation Closed?

What equipment is used for External Rotation Closed?

• A. Stability ball
• B. Resistance band
• C. Dumbbells
• D. Jumpboard

Answer: (D)

The key idea is creating a closed-chain external rotation by having a fixed surface to push against. The Jumpboard attaches to the front of the Reformer, giving a solid, flat platform for the feet to press into while the carriage moves with spring resistance. This setup keeps the distal segment in contact with a stable surface, so the rotation occurs with the limb anchored, which is what a closed-chain movement requires. A stability ball isn’t integrated with the Reformer and wouldn’t provide that fixed contact; a resistance band offers resistance but not a fixed platform on the reformer; dumbbells are free weights and don’t establish the closed-chain setup on the machine. So, the Jumpboard is the equipment used for this type of exercise.

The key idea is creating a closed-chain external rotation by having a fixed surface to push against. The Jumpboard attaches to the front of the Reformer, giving a solid, flat platform for the feet to press into while the carriage moves with spring resistance. This setup keeps the distal segment in contact with a stable surface, so the rotation occurs with the limb anchored, which is what a closed-chain movement requires. A stability ball isn’t integrated with the Reformer and wouldn’t provide that fixed contact; a resistance band offers resistance but not a fixed platform on the reformer; dumbbells are free weights and don’t establish the closed-chain setup on the machine. So, the Jumpboard is the equipment used for this type of exercise.