Adjust the cable as high as possible then grab the straight or EZ curl bar with both hands facing inwards at roughly shoulder width and take a step back from the machine. Hinge from the hips to lean slightly forwards.

Start by extending the elbows, tensing your triceps until they are almost fully extended. Then, slowly bend the elbows back to approximately a 90 degree bend. Keep your shoulders back and down throughout. Tense your core to keep your torso stable. Conduct the movement in a slow and controlled manner and repeat for the desired amount of repetitions.

Avoid flaring out your elbows too wide or using your torso to pull the weight downwards.