To perform Dumbbell (DB) Skull Crushers, lay on a flat bench with a dumbbell in each hand. Tuck your elbows in tight and hold the dumbbells above your head. Slowly lower the weight down next to your ears on either side, then extend through the elbows to lock out at the top, flexing your triceps as hard as possible.

#BPITeamPower athlete, Zach Kuipers shows you how.

DB Skull Crushers are part of your Friday Upper Body Max Effort workout. Perform 4 sets of 10 reps.