Lying Triceps Extensions

Grip the barbell (use can use an EZ-curl barbell if preferred) with your hands about 6 inches apart.
 
Sit on the end of the bench with the weight on your legs and your palms facing down.
 
Raise the barbell up to your chest and slowly lie back onto the bench, be sure to maintain the natural curves in your low back throughout the exercise.
 
Press the barbell straight up until your arms are fully extended above you and perpendicular to the floor; do not lock your elbows.
 
Lower the barbell along a semicircular arc to your forehead, being sure to stop just short of hitting your forehead while keeping your elbows pointing forward.
 
Press the barbell up reversing the movement and returning to the starting position.
 
The entire motion should be performed in a smooth, controlled manner that lasts about 3 seconds with the downward movement no faster than the upward.