Take an underhand grip on the barbell.

 

Begin the exercise with the barbell resting at upper-thigh level.

 

Flex your elbows, and bring the barbell up in an arc toward your chest. Tense your biceps at the top of the movement. Be sure to keep your upper arms close to your body.

 

Repeat the exercise for the recommended number of sets and repetitons This exercise may also be perfomed with dumbbells..