Position a straight bar or an EZ curl bar on a setting in the cable machine that is above your head.
Take an underhand grip and use your lats to bring the bar to the bottom position where your arms are fully extended.
Tuck your arms to your sides and lean forward slightly for better stability.
Bring the bar up to your lower chest by bending the elbows. Resist the weight as it goes to the top position. Your elbows must be firmly tucked into your torso.
You should feel a stretch on your triceps when your forearms are above parallel position.
Push the bar down to starting position by extending the elbows until your arms are straightened out. Contract the triceps hard and hold the position for a count of “one”.