Cable Overhead Single Arm Triceps Extension (rope attachment) exercise animation (Male)

Cable Overhead Single Arm Triceps Extension (rope attachment)

Target muscle
Triceps Brachii
Equipment
Cable
Body part
Upper Arms
Type
Strength

The cable overhead single arm triceps extension is an isolation exercise that targets the triceps brachii, working one arm at a time with a rope attachment on a cable machine. Pressing overhead places the long head of the triceps under a deep stretch, making it a strong choice for building arm size and ironing out left-to-right strength imbalances.

How to do the Cable Overhead Single Arm Triceps Extension (rope attachment)

  1. 1Attach a single rope handle to a low pulley and set the cable near the bottom of the machine.
  2. 2Grip one end of the rope, then step forward to face away from the stack so there is constant tension on the cable.
  3. 3Raise your working arm overhead, keeping your upper arm close to your head and your elbow pointing forward.
  4. 4Stagger your stance for balance and brace your core to keep your torso upright and stable.
  5. 5Extend your elbow to drive the rope up and forward until your arm is fully straight, squeezing the triceps at the top.
  6. 6Lower the rope under control behind your head until you feel a deep stretch in the triceps, keeping your upper arm still.
  7. 7Complete all reps on one arm, then switch the rope to the other hand and repeat.

Form tips

  • Keep your elbow pointing forward and high throughout the set so the movement isolates the triceps instead of the shoulder.
  • Pin your upper arm in place and let only your forearm move — the elbow is the only joint that should bend and straighten.
  • Use a slow, controlled lowering phase to maximize the stretch on the long head of the triceps.
  • Pause briefly at full extension and squeeze before lowering, rather than rushing the rep.

Common mistakes

  • Letting the elbow drift outward or downward, which turns the lift into a shoulder press and takes tension off the triceps.
  • Using a weight so heavy that your torso leans or your hips shift to heave the rope up, cheating the rep and risking your lower back.
  • Cutting the range of motion short and not lowering into the full stretch, which leaves growth in the long head on the table.
  • Flaring the upper arm away from your head, which lets the shoulder and chest take over the work meant for the triceps.

Frequently asked questions

What muscles does the cable overhead single arm triceps extension work?

It isolates the triceps brachii, the muscle on the back of your upper arm. Pressing overhead emphasizes the long head of the triceps, which gets a strong stretch at the bottom of each rep.

Why train one arm at a time instead of both?

Working one arm at a time lets you focus on a full range of motion and fix strength imbalances between sides, since your stronger arm can't compensate for your weaker one.

How many sets and reps should I do?

As an isolation move, 3–4 sets of 10–15 reps per arm works well. Keep the weight light enough to control the stretch and fully straighten the elbow on every rep.

Why use a cable instead of a dumbbell for overhead extensions?

The cable keeps constant tension on the triceps through the whole range, including the stretched bottom position, whereas a dumbbell loses tension as you near lockout.

Where should I feel this exercise?

You should feel it in the triceps at the back of your upper arm — a stretch as you lower the rope behind your head and a hard contraction as you straighten your elbow.

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