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Reviewed April 2026

TRX Tricep Extension

TricepsTRXIntermediateIsolation

Primary

Triceps

Secondary

Core, Shoulders

Equipment

Trx

Difficulty

Intermediate

Type

Push

TRX Tricep Extension

Demo coming soon

Written byMySetPlan Training Team

NASM-CPT, CSCS certified trainers. Every guide is built from peer-reviewed research and real coaching experience.

TRX tricep extensions use suspension straps to create a bodyweight skull crusher variation. You face away from the anchor point and lower your body by bending your elbows, then press back up. The further you walk your feet back, the more horizontal your body becomes and the harder the exercise gets.

When to use it

Use for bodyweight tricep isolation.

Who it's for

Intermediate lifters comfortable with TRX.

Coaching Note

Face away from the anchor with arms extended, hands at about forehead height. Keep your body rigid like a plank. Lower by bending only at your elbows—do not let them drop or flare. Extend back to start. Adjust difficulty by walking feet forward (easier) or back (harder).

What muscles does the TRX Tricep Extension work?

Primary

Stabilizers

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Also targets: ,

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Step-by-step: TRX Tricep Extension

  1. 1

    Hold TRX handles facing away from anchor.

  2. 2

    Walk feet back to create angle, arms extended forward.

  3. 3

    Keep body straight, hands near forehead.

  4. 4

    Lower body by bending elbows, keeping them fixed.

  5. 5

    Extend elbows to push body back up.

  6. 6

    Squeeze triceps at full extension.

What are the best tips for the TRX Tricep Extension?

The more horizontal your body, the harder it is.

Keep core engaged throughout.

Dont let elbows flare.

When to Use the TRX Tricep Extension

Use TRX extensions for bodyweight tricep isolation, during travel, or as part of suspension training circuits. They provide an excellent skull crusher alternative without equipment. Include them when you want strict isolation with scalable difficulty.

Mistakes to watch for on the TRX Tricep Extension

Dropping hips - this is a common issue that reduces exercise effectiveness.

Losing hip position during the TRX Tricep Extension shifts the loading pattern away from your Triceps and can compress your lower back. Stay planted and let your Triceps do the work.

Moving whole arm instead of just bending elbows.

Letting your elbows drift wide during the TRX Tricep Extension shifts load onto your shoulder joint instead of your Triceps. Keep them tucked at about 45 degrees to protect your rotator cuff and keep tension where it belongs.

Going too fast which reduces muscle tension and control.

Rushing through the TRX Tricep Extension reduces the time your Triceps spends under tension — which is one of the main drivers of growth. Aim for a controlled 2-second lowering phase on every rep.

Who should do the TRX Tricep Extension?

Intermediate lifters comfortable with TRX.

How to Program the TRX Tricep Extension

Strength6-10 reps

Lower reps with heavier weight builds raw strength. Your muscles and nervous system adapt to handle more load over time. This range is best for strength-focused goals.

Muscle Growth10-15 reps

This rep range keeps your muscles under tension long enough to trigger growth. Most people see the best muscle-building results in this zone. It balances strength and muscle size.

Endurance15-20 reps

Higher reps with lighter weight builds muscular endurance and improves conditioning. This range is good for joint health and building work capacity.

General guideline: 3 sets of 12-15 reps. Rest 60 seconds.

What are good alternatives to the TRX Tricep Extension?

Other Variations

  • Single Arm TRX Extension
  • TRX Skull Crusher

Frequently Asked Questions About the TRX Tricep Extension

The TRX Tricep Extension primarily targets the Triceps, making it an effective exercise for triceps development. Secondary muscles worked during the TRX Tricep Extension include Core, Anterior deltoid, providing additional training stimulus. Stabilizer muscles engaged include Shoulders.

The TRX Tricep Extension is rated as intermediate difficulty, meaning it requires some training experience. Intermediate lifters comfortable with TRX. Focus on proper technique and consider starting with easier variations.

For the TRX Tricep Extension, the recommended approach depends on your goals. 3 sets of 12-15 reps. Rest 60 seconds. For strength, use 6-10 reps. For muscle growth, perform 10-15 reps. For endurance, complete 15-20 reps.

The TRX Tricep Extension typically requires a trx, which most home gyms don't have. For a home-friendly alternative targeting the same muscles, check the variations section above.

Good alternatives to the TRX Tricep Extension include: Diamond Push-Up, Bench Dip, Band Pushdown. These exercises target similar muscle groups as the TRX Tricep Extension and can be used as substitutes based on your equipment availability, gym setup, or training preferences.

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Safety Notes

  • Check TRX anchor.
  • Start at easier angle.