The Eternal Beach-Body Plan
Phase I - Week 3: Workout IX
Exercise V: Lying Dumbbell Triceps Extension
Sets: 2 Reps: 12 Rest: 30 Seconds
Hold a dumbbell in each hand and lie back on a bench. Press the weights overhead so that they are directly above your face . Keeping your upper arms in place, bend your elbows and lower the dumbbells behind your head . Reverse the motion to return to the starting position. That's one rep.