Cable Tricep Overhead Extensions

Target muscles

The long head of the triceps brachii is the standout target here — the overhead position puts the long head in its most stretched position, where it generates the most force and grows the most. The medial and lateral heads contribute. The serratus anterior holds the scapulae stable through the overhead position. The trunk braces against the cable's pull. Of the triceps exercises available, the overhead extension is uniquely effective at loading the long head, which is why it shows up in nearly every serious arm-development program.

How to perform

Setup

Set a cable to the lowest pulley with a rope attachment. Stand facing away from the cable. Grip the rope with both hands and lift it overhead, the rope behind your head with elbows bent. Step forward to put tension on the cable. Feet staggered for stability — one foot a bit in front of the other. Trunk braced.

Execution

Extend the forearms by straightening the elbows — the rope ends arc forward and up to full overhead extension. The upper arms stay pinned next to the head throughout; they don't drift forward or out. Squeeze the triceps at full extension. Bend the elbows under control back to the start, letting the triceps stretch fully overhead. Don't let the upper arms flare wide; keep them tight to the head.

Common mistakes

• Letting the upper arms flare out wide. Keep the elbows close to the head — that's what loads the long head.
• Hyperextending the lower back to support the overhead load. Tuck the ribs and brace the abs.
• Going too heavy. The overhead position is shoulder-friendly only at strict moderate loads; ego loading collapses the form.
• Cutting the stretch at the bottom. Let the rope go all the way down behind the head for full stretch.
• Standing too close to the cable, which makes the line of pull too straight. Step forward to create the proper angle.

Progressions and regressions

Regress to dumbbell overhead triceps extensions (one or two dumbbells) until the overhead position is comfortable. Skull crushers are a lying variant that loads the same fibers. To progress, work pause reps (3-second pause at full stretch), single-arm cable overhead extensions, or chain with cable pushdowns in a tri-set for a brutal triceps pump.

Programming notes

Accessory work after the main pressing. 3-4 sets of 10-15 reps. Two times a week. The overhead position loads the long head of the triceps in a way that pushdowns and dips can't — pair them with the cable rope pushdown for a complete triceps program. The shoulder mobility demand is moderate; lifters with cranky shoulders should warm them up well before attempting heavy overhead extension work.