I read a Frederic Delavier’s book « Strength Training Anatomy » and there is good stuff.
Sitting or standing, take the EZ-Bar with a pronated grip and your arms upright :
Inhale and flex your arms to bring them behind your neck
Back to the start position and exhale at the end of extension
The vertical position of arms stretches your long head of your triceps. This is help to pump your triceps.
In additional, the pronated grip work the lateral head of your triceps.
For safety reasons, don’t arch too much your back.
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