Starting Position: Holding a dumbbell in each hand, kneel down in order to rest your elbows and forearms on a bench. Forearms are turned so that the palms up. Elbows should be bent to about 90-degrees and the dumbbells/hands should hang freely off the edge of the pad. Wrists are in line with the forearms (neutral).
Downward Phase: Inhale and slowly bend at the wrist so that the dumbbells to move toward the floor. Do not release your grip, straighten your elbows or lean forward / backward. Hold this position briefly.
Upward Phase: Exhale and slowly roll your wrists to pull the weight up and return the dumbbells to the starting position.
Individuals sometimes release their grip during the lowering phase, allowing the dumbbells to roll towards their fingertips. While this may increase the load on the forearm muscles, it also increases the risk of wrist injury and dropping the dumbbells. To increase strength think about squeezing the weights as hard as possible during both phases of the movement.