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Home » Exercise Guides » Arms

Dumbbell Concentration Curl: Build Strong Biceps & Arms

This is a great exercise for maximizing mind/muscle connection, an essential component of muscular development. In this guide, we've explained how do to concentration curl correctly with tips, variations, and more.

Written by Dr. Malik

Last Updated on11 August, 2024 | 5:20 AM EDT

Ask Question?

The dumbbell concentration curl is an effective biceps isolation exercise that’s utilized to maximize muscle contraction, a key component of muscle growth.

But since it’s not a compound exercise like the barbell curl, many think it’s not as beneficial. However, this couldn’t be further from the truth. In fact, a study by the American Council On Exercise (ACE) found the concentration curl to be superior to other popular biceps exercise variations (1).

The reason being is because it prevents the assistance of other muscles such as the shoulders during the exercise.

It’s also a great exercise for anyone at any level of training. So, make sure you include the concentration curl in your sessions with your other bicep exercises for maximum growth potential.

Related: Simple Old-School Methods To Grow Your Biceps

Dumbbell Concentration Curl Details
Basic Information
Body Part
Arms
Primary Muscles
Biceps brachii, Brachialis, Brachioradialis
Secondary Muscles
Forearm Flexors
Equipment
Dumbbells, Bench Or Chair
Exercise Characteristics
Exercise Type
Strength
Movement Pattern
Pull
Force Type
Concentric
Unilateral/Bilateral
Unilateral
Compound/Isolation
Isolation
Bodyweight Exercise
No
Training Parameters
Difficulty Level
Intermediate
Target Training Goals
Hypertrophy
Suitable Workout Phases
Main workout
Risk Level
Low
Weight Category
Light (e.g., light dumbbells, medicine balls)
Recommended Rep Ranges
GoalRep Range
Strength6-8
Hypertrophy8-12
Endurance15-20
Power3-5
Muscular endurance12-20
Stability core8-12
Flexibility mobility8-12
Similar Exercises
  • Master the EZ Bar Curl: Target Your Biceps for Maximum Gain
  • Incline Reverse-Grip Dumbbell Bench Press: Build Chest & Arms
  • Suspended Row: Target Your Back, Biceps, and Core Effectively
  • Build Powerful Forearms with Dumbbell One-Arm Reverse Wrist Curl

Muscles Worked 

While the dumbbell concentration curl is primarily a biceps exercise, it also works other muscles of the upper arm too. Here are the muscles worked during this exercise.

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Biceps brachii

The biceps brachii or biceps for short is a two-headed muscle located on the anterior or front of the upper arm. The biceps crosses the elbow and shoulder joint and therefore functions at both ends, although, its primary function is at the forearm end where it supinates and flexes the elbow. 

The concentration curl really allows for a pronounced contraction and supination of the biceps which is the formula for building impressive biceps.

Brachialis

The brachialis muscle is located deep to the biceps brachii and is a very important elbow flexor. When fully developed, this muscle gives width to the upper arm. 

The hammer curl is a popular exercise for emphasizing the brachialis although any curl will involve this muscle.

Brachioradialis

The brachioradialis is a forearm muscle (located on the lateral portion) that is primarily an elbow flexor but it also supinates (turns forearms up) and pronates (turns forearm down) the forearm.

How To Do The Dumbell Concentration Curl

  1. Sit on an upright bench or chair with your legs spread apart and place a dumbbell on the floor in front of you.
  2. Then, lean your torso over while keeping your back straight and pick up the dumbbell with your left hand.
  3. Now, rest the backside of your left upper arm on your left inner thigh and allow the dumbbell to hang down toward the floor.
  4. Curl the dumbbell upward and squeeze your biceps at the top of the movement without swinging or using momentum. Exhale during this portion of the exercise.
  5. Then, slowly lower the dumbbell back down but don’t lock out your elbow at the bottom.
  6. Complete the desired number of reps.
  7. Repeat with your right arm.
  8. Alternate between both arms for sets.

Here’s a video example…

Dumbbell concentration curl tips

  • This is not the exercise to use heavy poundages. Stick to a weight that allows you to complete each rep while fully isolating the biceps and using a full range of motion.
  • Do not lock out your elbows during the curl to keep tension on your biceps.
  • Avoid using momentum since the concentration curl is an isolation exercise and this would defeat the purpose of the effectiveness of this movement.

3 Variations

Here are three variations of the dumbbell concentration curl that we recommend. 

Standing concentration curl

When you think of the standing concentration curl, you might remember the scene from Pumping Iron where Arnold Schwarzenegger did this variation while he giving his famous quotes.

Although it’s not exactly G-rated, but we’ve provided the video below (just this once)… 

Dumbbell reverse concentration curl

The dumbbell reverse-grip concentration curl is the dumbbell curl in reverse. It focuses on the brachioradialis muscle of the forearm that has a mechanical advantage when the forearm is facing down. 

it’s performed exactly the same with the only difference being hand position. 

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Cable concentration curl

The cable concentration curl is another excellent variation because you can do it in so many different ways. You can do it similar to the seated variation or you can do the standing overhead cable curl.

Here’s a video of the standing overhead cable curl. 

How To Incorporate The Dumbell Concentration Curl Into Your Training Routine

It’s quite simple actually, but we recommend using a little strategy to get the most out of your biceps training efforts. 

Choose the exercises that allow you to use the most weight first and save the lighter movements for last. For example, if your biceps workout includes barbell curls, hammer curls, and dumbbell concentration curls, you’ll obviously want to start with the barbell curl.

Although, if you don’t plan to train heavy or you’re just focusing on a few movements to isolate the muscles then it doesn’t matter the order in which you incorporate this exercise.

Other ways to include this exercise are as part of a superset where you do two exercises back to back with no rest in between and as a pre-exhaust method.

Supersets

For the supersets, choose another exercise to pair up with the concentration curl such as the cable triceps pushdown. Do one set of pushdowns then jump right into a set of the curl, rest, and repeat. 

Also read: Amazing Supersets For Bigger, Stronger Biceps and Triceps

Pre-exhaust method

For pre-exhaustion, perform one or two sets of 15-20 reps for the concentration curl before you do a back workout. What this does is it prevents you from using too much biceps and it forces the back muscles to do more of the work as it should.

Related: The 13 Best Methods For Increasing Training Intensity

Sets/reps

When training smaller muscle groups such as the biceps, you want to avoid doing too much volume. But it also depends on your goals, and experience level too because not everyone will benefit from doing the same number of sets and reps.

Generally, though, we’d recommend 3 sets of anywhere from 8-20 reps to ensure that you get the most from this exercise. Also, make sure to take your higher rep sets to failure.

Wrapping Up

The dumbbell concentration curl is one of the best isolation exercises for the biceps. It’s may not be as popular as it once was but the proof is in the research. 

So go ahead and include it in your arm workouts and make some more gains!

Interested in measuring your progress? Check out our strength standards for Barbell Curl, Dumbbell Curl, Dumbbell Concentration Curl, and more.


If you have any questions or need further clarification about this article, please leave a comment below, and Dr. Malik will get back to you as soon as possible.

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Categories: Arms Exercise Guides
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Dr. Malik

Dr. Malik

Dr. Malik is an MD and fitness expert who has published on reputable websites. He combines medical knowledge with a passion for fitness to provide readers with accurate and scientifically-backed advice on exercise, muscle building, and overall wellness.

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