dumbbell one arm reverse preacher curl

How to do this exercise

1. Step:1 Sit on a preacher bench with your chest against the pad and your arm extended over the edge of the bench, holding a dumbbell with an underhand grip.
2. Step:2 Lower the dumbbell slowly until your arm is fully extended.
3. Step:3 Curl the dumbbell back up towards your shoulder, keeping your upper arm stationary.
4. Step:4 Squeeze your biceps at the top of the movement, then slowly lower the dumbbell back down to the starting position.
5. Step:5 Repeat for the desired number of repetitions, then switch arms.