Appears in642 Workouts*

Dumbbell 21-High

Master the top half of the bicep curl. This partial-ROM exercise uses constant tension and a peak contraction at the shoulders to build incredible thickness and detail in the upper arms.

The Dumbbell 21-High mainly works the biceps, with help from the forearms. You'll need: dumbbells.

Libby Christensen
Libby Christensen
@Libby Christensen

Required Equipment

Dumbbells
Dumbbells

Dumbbell 21-High Muscles Worked

Primary

Biceps (biceps brachii)

Secondary

Side Biceps (brachialis); Forearm Flexor (brachioradialis)

How to do the Dumbbell 21-High

Setup

  • Stand tall with feet shoulder-width apart, holding a dumbbell in each hand.

  • Keep your elbows tucked into your sides and pinned to your torso.

Execution

  • Start with the dumbbells already at the midpoint (forearms parallel to the floor), which is the bottom position for this partial range of motion.

  • Curl the weights upward toward your shoulders by contracting your biceps, focusing on the upper half of the range.

  • Squeeze hard at the top of the movement for a brief second.

  • Lower the weights slowly back to the parallel midpoint position, maintaining constant tension on the biceps throughout the movement.

  • Keep your upper arms stationary throughout the entire set to ensure the focus remains on the biceps rather than the shoulders.

Dumbbell 21-High FAQs

What muscles does the Dumbbell 21-High work?

The Dumbbell 21-High mainly works the biceps, with help from the forearms. The main muscles are the biceps brachii.

What equipment do you need for the Dumbbell 21-High?

Dumbbells.

What workout day should the Dumbbell 21-High go on?

It belongs on pull day in a push/pull/legs routine.

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