Execution:
1
Stand pressed against the cable tower, holding the straight bar with a pronated grip.
2
Keep your torso fully upright, without leaning back.
3
Pin your elbows to your sides and press the bar down until the triceps contract.
4
Raise only until your forearms come near your chest, keeping elbows still.
Tip: standing flush with the pulley removes the urge to lean — all the work stays on the triceps.