WHAT ARE SUMO DEADLIFTS GOOD FOR?
The barbell curl targets your biceps brachii muscle as well as the brachialis, a muscle responsible for elbow flexion. With regular practice, barbell curls can help you build bigger biceps. Barbell curls generally allow you to lift heavier weight than dumbbell curls.
Start Position
Grasp two dumbbells using a closed, neutral grip Stand erect with the feet shoulder-width apart and the knees slightly flexed Position the dumbbells alongside the thighs with the elbows fully extended All repetitions begin from this position
Movement Phases
flex the elbow of one arm until the dumbbell is near the anterior deltoid The other arm should be kept stationary at the side of the thigh Lower the dumbbell until the elbow is fully extended
Note
Keep the torso erect and the upper arm stationary Do not jerk the body or swing the dumbbell upward
Primary: brachialis,brachioradialis
Secondary: biceps brachii