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  7. Dumbbell Standing Triceps Extension

Exercise guide

Dumbbell Standing Triceps Extension

  • Intermediate
  • Isolation
  • Rep-based
  • Upper arms

This overhead isolation movement emphasizes the long head of the triceps, providing a deep stretch that is essential for maximizing muscle growth and overhead stability.

Reviewed by the Crucible team · Updated June 2026

Watch the Dumbbell Standing Triceps Extension demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Triceps

Secondary

  • Biceps
  • Forearms

Equipment

  • Dumbbell

Setup

  1. Stand with your feet shoulder-width apart and a slight bend in your knees for stability.
  2. Grip a single dumbbell with both hands, forming a diamond shape with your palms against the underside of the top weight plate.
  3. Lift the dumbbell directly overhead until your arms are fully extended and your biceps are near your ears.

How to do it

  1. Inhale as you slowly lower the dumbbell behind your head by bending only at the elbows, keeping your upper arms stationary and vertical.
  2. Lower the weight until your forearms are at least parallel to the floor or you feel a deep stretch in the triceps.
  3. Exhale as you use your triceps to press the weight back to the starting position using a controlled 2-0-2 tempo.

Form checklist

  • Keep your elbows tucked in toward your head rather than flaring them out to the sides.
  • Engage your core and glutes to prevent your lower back from arching as the weight moves behind you.
  • Ensure only your forearms are moving; your upper arms should remain perpendicular to the floor throughout the set.
  • Maintain a neutral neck position, looking straight ahead rather than down at the floor.

Pro tips

  • Focus on the deep stretch at the bottom of the movement to maximize recruitment of the triceps' long head.
  • Avoid a hard lockout at the top of the rep to keep constant tension on the muscle fibers.

Make it harder

  • Perform the exercise unilaterally (one arm at a time) to increase core stability demands and address strength imbalances.
  • Add a 2-second pause at the bottom of each repetition to eliminate momentum and increase time under tension.

Frequently asked

What muscles does the dumbbell standing triceps extension work?
The dumbbell standing triceps extension primarily targets the triceps, and also works the biceps and forearms as secondary muscles.
What equipment do you need for the dumbbell standing triceps extension?
The dumbbell standing triceps extension uses dumbbell.
Is the dumbbell standing triceps extension good for beginners?
The dumbbell standing triceps extension is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

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 this with a plan, not guesswork

Crucible builds the dumbbell standing triceps extension into a precise program around your body, equipment, location, and time.

Download on the App Store