With this exercise your lay face down to isolate your biceps.
Muscle group: Biceps
Steps
Lay face down on a high bench with your head at one end and your toes pressed against the floor to support you.
Grasp a barbell with an underhand grip (palms facing up) about 12 inches apart.
Extending your arms to the floor, curl your arms back towards your head in a slight arc, so your biceps touch your forearm.
Slowly return to the starting position.
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