Dumbbell 21s
Expert Advice
Keep your elbows stationary and close to your body to isolate the biceps and prevent using momentum.
How-to-do Steps
- Stand with feet shoulder-width apart, holding a dumbbell in each hand with palms facing forward.
- Perform 7 curls from the bottom of the movement to halfway up.
- Follow with 7 curls from halfway up to the full curl position.
- Finish with 7 full range of motion curls from bottom to top.
- This completes one set of '21s'.
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Muscles Worked
Dumbbell 21s primarily targets the Biceps, with Strength mechanics using Dumbbell. Understanding muscle activation patterns helps you focus on proper engagement and maximize training effectiveness.
Primary
Biceps70%
Secondary
Forearms30%
Equipment
Dumbbell
Exercise Type
Strength
Sets & Reps Guidance
Beginner3 x 10-12
Intermediate4 x 8-10
Advanced4 x 6-8
Frequently Asked Questions
What muscles does Dumbbell 21s work?
Dumbbell 21s primarily targets the Biceps. Secondary muscles involved include Forearms. It is classified as a Strength exercise performed with Dumbbell.
How many sets and reps should I do for Dumbbell 21s?
For beginners, start with 3 sets of 10-12. Intermediate lifters can do 4 sets of 8-10. Advanced athletes can push to 4 sets of 6-8. Adjust based on your goals and recovery capacity.
Is Dumbbell 21s suitable for beginners?
Dumbbell 21s is rated as intermediate difficulty. Beginners may want to start with lighter loads or simpler variations and progress to this exercise as their strength and coordination improve.
