Primary
Biceps
Secondary
Brachialis, Forearms
Equipment
Dumbbell
Difficulty
Beginner
Type
Pull
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Concentration curls isolate your biceps by anchoring your elbow against your inner thigh while seated. This braced position eliminates momentum and shoulder involvement, forcing your biceps to handle the entire load. The exercise is named for the intense mental focus it demands on each rep.
When to use it
Use as a finishing exercise after heavier bicep work like barbell curls or chin-ups. The strict isolation makes concentration curls ideal for high-rep pump work at the end of arm sessions. Avoid using as your primary bicep builder since the load is self-limiting.
Who it's for
Lifters wanting to develop peak bicep contraction and mind-muscle connection. Those with elbow sensitivity who need a controlled curl without wrist rotation. Bodybuilders focusing on bicep peak development and separation.
Brace your elbow firmly against your inner thigh—this is your anchor point that must not move. The only movement should occur at your elbow joint. If you find your shoulder or upper arm moving, reduce the weight immediately.
Also targets: Brachialis, Forearms
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Sit on a bench with legs spread wide.
Hold a dumbbell with one hand, elbow braced against inner thigh.
Start with arm fully extended toward the floor.
Curl the weight up toward your shoulder.
Squeeze the bicep at the top.
Lower slowly and repeat, then switch arms.
Brace your elbow firmly against your thigh.
Focus on peak contraction at the top.
Keep your upper body still throughout.
Use concentration curls as a finishing exercise after heavier bilateral curls. The strict isolation makes them ideal for high-rep pump work (12-15+ reps) at the end of arm sessions. They also work well for mind-muscle connection practice.
Moving the elbow off the thigh - reduces isolation.
Letting your elbows drift away from the intended path during the Concentration Curl can change which muscles carry the load. Use the elbow position described in the setup cues and keep it consistent through each rep.
Rushing through reps - limits mind-muscle connection.
Rushing through the Concentration Curl makes it easier to lose position and harder to keep tension on your Biceps brachii. Slow down enough to control both the lifting and lowering portions of each rep.
Leaning back to lift weight - uses body momentum.
Bouncing or using momentum during the Concentration Curl makes the movement harder to control and can shift work away from your Biceps brachii. Use a load you can move smoothly through the intended range.
Lifters wanting to develop peak bicep contraction and mind-muscle connection. Those with elbow sensitivity who need a controlled curl without wrist rotation. Bodybuilders focusing on bicep peak development and separation.
Recommendation: 3 sets of 12-15 reps per arm. Rest 45 seconds.
10-15 reps
Rest 90s-2min
4-6 reps
Rest 2-3min
15-20 reps
Rest 60s
Position at the end of arm workouts as a finishing isolation exercise. Concentration curls work best after heavier compound pulling and barbell curls when biceps are pre-fatigued. The strict form makes them ideal for pump-focused sets.
Week 1: 3x12 each arm @ RPE 7 | Week 2: 3x12 @ RPE 8 | Week 3: 3x10 @ RPE 8 | Week 4 (deload): 2x15 @ RPE 6
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Get Your Custom PlanThis is one example of how Concentration Curl could sit inside a complete workout. Your plan may use different movements after Ely checks your assessment.
Sample workout
MySetPlan guides you set by set, times your rest, records your work, and tells you what to do next from the plan Ely approved.
Start My $19 WeekSit on a bench and anchor your elbow against your inner thigh. This is the most stable version and allows maximum control. Best for high-rep pump work.
Use a low cable with a handle instead of a dumbbell. Cables provide constant tension throughout the movement, including at the top where dumbbells lose tension.
Curl a barbell with both arms together. Allows more total weight and less control. Better for building overall bicep strength.
Curl dumbbells with both arms simultaneously. Allows independent arm movement and is less strict than concentration curls but more controlled than barbell curls.
Barbell curls allow more weight and less control, building raw bicep strength. Concentration curls demand more control and focus and are better for muscle pump and peak development. Use barbells for strength; use concentration curls for finishing work.
Dumbbell curls require more core stability and allow independent arm movement. Concentration curls provide more control and a stronger peak contraction. Both are effective isolation movements.
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Frequently Asked Questions About the Concentration Curl
It's called concentration curl because the fixed position forces you to concentrate all your effort into your biceps. You cannot use momentum or body movement. It's just you and your biceps.
Concentration curls work best as a finishing exercise after heavier compound movements. Do them at the end of your arm workouts when your biceps are already fatigued. This ensures maximum pump.
Lift over about 1-2 seconds and lower over 2-3 seconds. Slow, controlled reps maximize the pump. Don't rush the movement. The slower you go, the more your biceps work.
Use lighter weight than your barbell curls. The range of motion is longer and the movement is harder because you can't cheat. Choose weight where you can do 8-15 reps with good form.
Biceps can handle frequent work, so doing concentration curls 2-4 times per week is fine. But give your arms at least one rest day per week.
Form is more important than weight in concentration curls. Focus on slow, controlled reps with a full range of motion. A lighter weight with perfect form beats heavy weight with poor form.
Yes. Concentration curls create a strong peak contraction, which develops the bicep peak specifically. Do them regularly if bicep peak development is your goal.
Yes, the Concentration Curl can be done at home with a dumbbell. It requires minimal space and is a great option for home workouts targeting biceps.