Cable Lying Triceps Extension (Low Pulley)

Cable Lying Triceps Extension (Low Pulley): Form, Sets, Tips & FAQ

Cable Lying Triceps Extension (Low Pulley): Form, Sets, Tips & FAQ
Triceps Isolation

Cable Lying Triceps Extension (Low Pulley)

Intermediate Cable Machine + Bench Hypertrophy / Control / Arm Development
The Cable Lying Triceps Extension (Low Pulley) is a strong variation of the classic skull crusher that uses a low cable setup to keep more consistent tension on the triceps throughout the rep. By lying on a bench and extending at the elbows while keeping the upper arms stable, you can train the long head, lateral head, and medial head with a controlled stretch and a hard lockout. It is an excellent choice for lifters who want more constant resistance than free-weight extensions.

This exercise is best performed with a smooth tempo and strict elbow control. The goal is to bend at the elbows to bring the handle or bar toward the forehead or just behind it, then extend back to the top without letting the shoulders take over. When done well, the movement creates a deep triceps stretch at the bottom and strong tension through the entire range of motion.

Safety note: Use a manageable load and keep the elbows controlled. Avoid jerking the cable, flaring the elbows excessively, or lowering the handle too fast toward the face. If you feel sharp elbow pain or shoulder discomfort, reduce the weight and shorten the range slightly.

Quick Overview

Body Part Triceps
Primary Muscle Triceps brachii
Secondary Muscle Anconeus, front delts and forearms as stabilizers
Equipment Low pulley cable machine, flat bench, straight bar or similar cable attachment
Difficulty Intermediate

Sets & Reps (By Goal)

  • Muscle growth: 3–4 sets × 8–12 reps with controlled lowering and a strong lockout
  • Strength-focused triceps work: 4–5 sets × 5–8 reps using strict form and longer rest periods
  • Accessory work after pressing: 2–3 sets × 10–15 reps with moderate weight and full control
  • Joint-friendly pump work: 2–4 sets × 12–20 reps using lighter weight and smooth tempo

Progression tip: Increase reps first, then add small amounts of weight while keeping the elbows steady and the bottom position controlled.

Setup / Starting Position

  1. Place a flat bench in line with a low pulley so your head is positioned closer to the cable stack end.
  2. Attach a straight bar, EZ-style attachment, or short bar to the low cable.
  3. Lie flat on the bench with your feet planted firmly on the floor for balance.
  4. Grip the attachment evenly and press it above your chest or forehead line with your arms nearly straight.
  5. Set your shoulders down and back and keep your upper arms mostly fixed throughout the exercise.

Tip: Start with the bar positioned so the cable already has tension at the top. That constant pull is one of the main advantages of this variation.

Execution (Step-by-Step)

  1. Begin at the top: Hold the attachment with your arms extended and your elbows pointing upward, not drifting too far outward.
  2. Lower under control: Bend your elbows slowly to bring the attachment down toward your forehead or just slightly behind it.
  3. Keep upper arms stable: Let the elbows hinge while avoiding unnecessary shoulder movement or swinging.
  4. Reach the stretch: Pause briefly in the bottom position when your triceps are fully lengthened but still comfortable.
  5. Extend powerfully: Straighten your arms by contracting the triceps until you return to the top position.
  6. Repeat smoothly: Maintain even tempo and cable tension for every rep without bouncing out of the bottom.
Form checkpoint: The attachment should travel in a controlled arc, and the movement should come mainly from elbow flexion and extension. If the shoulders rock or the elbows flare too much, the weight is likely too heavy.

Pro Tips & Common Mistakes

  • Keep the elbows tucked but natural: Too much flare reduces triceps isolation and can stress the joints.
  • Lower with patience: The eccentric phase is where a lot of the training value happens, so do not let gravity or cable pull take over.
  • Do not turn it into a pullover: Excessive shoulder movement shifts tension away from the triceps.
  • Avoid smashing the bottom: Bring the bar close to the forehead or slightly behind it, but stay in control at all times.
  • Lock out with intent: Finish each rep by squeezing the triceps without hyperextending the elbows.
  • Use moderate loads first: This movement rewards clean mechanics more than sloppy heavy reps.
  • Choose the right attachment: A straight bar feels firm and simple, while other attachments may feel easier on the wrists.

FAQ

What makes the low pulley version different from dumbbell skull crushers?

The low pulley creates more consistent resistance through the full range of motion. Unlike dumbbells, the cable keeps tension on the triceps even near the top.

Where should I feel this exercise most?

You should feel it mainly in the triceps, especially through the back of the upper arm. The bottom position often creates a strong stretch, while the top gives a hard contraction.

Is this exercise good for building the long head of the triceps?

Yes. Because the exercise places the arm in a position that allows a deep stretch and full extension, it can be very effective for overall triceps development, including the long head.

How heavy should I go on cable lying triceps extensions?

Use a load that lets you control the lowering phase and keep your elbows stable. If your shoulders start moving or your reps become jerky, the weight is too heavy.

Can beginners use this exercise?

Yes, but it is usually better once you already understand basic triceps extension mechanics. Beginners should start light and focus on tempo, positioning, and elbow control.

Recommended Equipment

Tip: Choose attachments that let you keep a neutral, comfortable wrist position while still controlling the full range of motion.

Disclaimer: This content is for educational and informational purposes only and is not a substitute for medical advice, diagnosis, or treatment. If you have elbow, wrist, or shoulder pain, consult a qualified healthcare professional before training.