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  5. Arms
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  7. Cable One Arm Tricep Pushdown

Exercise guide

Cable One Arm Tricep Pushdown

  • Beginner
  • Isolation
  • Rep-based
  • Upper arms

This unilateral isolation exercise targets all three heads of the triceps, allowing you to correct muscle imbalances and achieve a peak contraction through a focused range of motion.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Cable One Arm Tricep Pushdown demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Triceps

Secondary

  • Biceps
  • Forearms

Equipment

  • Cable

Setup

  1. Set the cable pulley to the highest position and attach a single D-handle.
  2. Stand facing the machine with your feet shoulder-width apart or in a staggered stance for better balance.
  3. Grasp the handle with one hand using an overhand grip and tuck your elbow firmly against your side.
  4. Maintain a slight forward lean from the hips and engage your core.

How to do it

  1. Exhale and push the handle down by extending your elbow until your arm is fully straight at your side.
  2. Squeeze your tricep hard at the bottom of the movement for one second.
  3. Inhale as you slowly control the weight back up to the starting position until your forearm is just above parallel.
  4. Complete all reps on one side before switching to the other arm.

Form checklist

  • Keep your elbow pinned to your ribcage throughout the entire set.
  • Avoid swinging your torso or using your shoulder to drive the weight down.
  • Maintain a neutral wrist position; do not let it bend excessively.
  • Ensure your shoulder remains down and back, not hunched toward your ear.

Pro tips

  • Place your non-working hand on your working tricep to feel the muscle fiber recruitment and improve mind-muscle connection.
  • Experiment with a slight outward flare at the bottom of the movement to emphasize the lateral head of the tricep.

Make it harder

  • Incorporate a 3-second eccentric (lowering) phase to increase time under tension.
  • Perform a 'drop set' by immediately reducing the weight after reaching failure to push past fatigue.

Frequently asked

What muscles does the cable one arm tricep pushdown work?
The cable one arm tricep pushdown primarily targets the triceps, and also works the biceps and forearms as secondary muscles.
What equipment do you need for the cable one arm tricep pushdown?
The cable one arm tricep pushdown uses cable.
Is the cable one arm tricep pushdown good for beginners?
Yes. The cable one arm tricep pushdown is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • Arm Double CrossoverIntermediate · biceps, deltoids, and triceps
  • Aztec Push UpIntermediate · pectorals, serratus anterior, and triceps
  • Band Assisted DipIntermediate · triceps
  • Band Bent Over One Arm Neutral Grip KickbackBeginner · triceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

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