This is an advanced exercise that requires excellent coordination and balance.
Grasp a pair of dumbbells in each hand, palms facing up. Standing on one foot, extend your other foot back (see illustration) and extend your arms down so they are handing in front of your leg. While on one foot, curl your arms up contracting your biceps. Return to the starting position and switch legs,
Have a Personal Trainer or Instructor show you how to properly perform this exercise.