Why is it called a Scott machine?

The equipment is named after Larry Scott, the first Mr. Olympia, who popularized the preacher curl as a way to maximize bicep thickness.

Should I use one arm at a time or both together?

Using one arm at a time allows for better focus on the mind-muscle connection and helps correct strength imbalances between sides.

Lower it until your arm is almost fully straight, but maintain slight tension in the muscle to protect the elbow joint from overextension.

Learn how to perform dumbbell curls on the Scott machine with proper form to isolate the biceps and improve muscle peak.

Adjust the seat of the Scott machine so that your armpits rest comfortably at the top of the padded slant.
Grasp a dumbbell in one hand and extend your arm fully across the pad with your palm facing upward.
Plant your feet firmly on the floor and keep your chest pressed against the pad to stabilize your torso.
Curl the dumbbell toward your shoulder by contracting your biceps while keeping your triceps in contact with the pad.
Squeeze the bicep at the top of the movement before slowly lowering the weight back to the starting position.
Complete your repetitions for one arm then switch to the other side to ensure balanced development.

Leaning back or lifting the chest away from the pad to create momentum
Stopping the movement before full extension, which reduces the stretch on the bicep
Allowing the wrist to curl excessively or go limp during the lifting phase

Biceps · Arms