One Arm Dumbbell Preacher Curl

What is One Arm Dumbbell Preacher Curl? One arm dumbbell preacher curl is an isolation exercise that targets the biceps brachii muscle. This exercise is performed using a preacher bench, which helps stabilize the upper arm and isolate the biceps for maximum contraction.

Tutorial

1. Sit on the preacher bench and adjust the seat height so that your armpit rests comfortably on the top of the bench.
2. Hold a dumbbell in one hand with an underhand grip, palm facing up, and place the back of your upper arm against the pad.
3. Keep your chest up, shoulders back, and core engaged throughout the movement.
4. Slowly curl the weight upwards towards your shoulder while keeping your upper arm against the pad.
5. Squeeze your biceps at the top of the movement, then lower the weight back down in a controlled manner.
6. Repeat for the desired number of repetitions and switch arms.

Common Mistakes

• Using momentum to lift the weight instead of relying on the biceps.

• Allowing the elbow to move away from the pad, which reduces the effectiveness of the exercise. - Using excessive weight, which can lead to improper form and potential injury.

• Not fully extending the arm at the bottom of the movement, limiting the range of motion.

Tips for Better Results

• Focus on slow and controlled movements to fully engage the biceps.

• Use a full range of motion, ensuring the biceps are fully stretched at the bottom and contracted at the top. - Maintain proper posture throughout the exercise to prevent strain on the lower back.

• Gradually increase the weight as your strength improves to continue challenging the muscles.

Muscles Worked One arm dumbbell preacher curls primarily target the biceps brachii muscle, specifically the long head of the biceps. Additionally, this exercise also engages the brachialis and brachioradialis muscles in the forearm.