Alternating bending of hands on a biceps, sitting on incline bench

Alternately bending hands on a biceps, sitting on a sloping bench technique of implementation of exercise:

1. Sit on a bench. In each hand grab a dumbbell. Hands down, elbows pressed against the body. This will be your initial position.
2. On the exhale, bend your right arm, lifting the dumbbell. During the execution of this movement, rotate your wrist so that the palm was facing upwards. Tip: part of your arm from the elbow to the shoulder should remain stationary. Only works forearm. The movement must go on until complete reduction of the biceps, while the arm with the dumbbell will be at the level of the shoulder. Pause for a moment, straining the muscles.
3. On the inhale slowly lower arm to starting position.
4. Repeat movement with the left arm. The two movements constitute one repetition.
5. Complete the required number of repetitions.