You can also perform the lying tricep extension lying flat on the floor with knees bent. (mystrengthtraining.com)
Fortunately, there are plenty of ways to add more overhead moves to your routine and they're incredibly versatile — you can choose to perform overhead triceps extensions with an EZ - bar, dumbbells, cable or a rope and the results will be equally great. (fitnessandpower.com)
Marshall (2008) compared the muscle activity throughout a set of the shoulder width push up and lying dumbbell triceps extension exercise with loads that were equated in triceps muscle activity to at 90 degrees of elbow extension. (strengthandconditioningresearch.com)