Cable Standing Single-Arm Horizontal Triceps Extension

The upper arm held out to the side at shoulder height, the elbow straightens to push a handle out sideways against a pulley on the other side.

How to do it

Setup

Side-on to a pulley at shoulder height, the far arm raised to the side with the elbow bent, the handle in front of the other shoulder.

Steps

Straighten the elbow to push the handle out to the side.
Keep the upper arm level with the shoulder and still.
Bend the elbow to bring the handle back across the chest; switch sides after the set.

Common mistakes

The elbow sinking below the shoulder: hold the upper arm level. Turning the trunk away from the pulley: shoulders square. Rushing the return: let the cable bring the hand back slowly.

Breathing

Exhale pressing, inhale returning.