Incline Dumbbell Alternating Curl
Reviewed by Dylan Maurick, Physiotherapist
The Incline Dumbbell Alternating Curl trains the arms one side at a time to improve control, balance and strength through a longer curl path.
Incline Dumbbell Alternating Curl
Muscles Worked: Incline Dumbbell Alternating Curl
The incline dumbbell alternative curl primarily trains the arms, with the biceps producing elbow flexion while the shoulder stays extended against the bench. That stretched start increases tension on the long head because the upper arm begins behind the torso. Your forearms assist by maintaining grip and helping control wrist position through the rep. Keeping your elbows fixed and lowering slowly can help you perform the exercise with control, while sufficient training volume supports muscle growth over time (Baz-Valle et al., 2022).
Technique and form
How to perform the Incline Dumbbell Alternating Curl
- Set up an incline bench at a 45-degree angle and sit with your back firmly supported, holding a dumbbell in each hand with a supinated grip (palms facing up).
- Position your feet flat on the ground for stability and maintain a neutral spine position throughout the exercise.
- Begin with your arms fully extended toward the floor, elbows close to your torso but not locked out.
- Inhale and curl the right dumbbell toward your shoulder while simultaneously rotating your left palm to a pronated position (palm facing down).
- As you exhale, continue curling the right dumbbell up while keeping your elbow stationary, and at the same time, begin curling the left dumbbell with your palm facing down.
- Lower the right dumbbell back down with control while your left arm completes its curl, maintaining opposite movements throughout the exercise.
- Once the left arm reaches full flexion, begin lowering it while simultaneously curling the right dumbbell up again with a supinated grip.
- Continue alternating these opposite curling patterns for the prescribed number of repetitions, maintaining controlled movements and avoiding momentum.
Important information
- Keep your upper arms and elbows pressed against your sides throughout the movement to isolate the biceps properly.
- Focus on a full range of motion, allowing your arms to fully extend at the bottom position without locking your elbows.
- Maintain wrist alignment with your forearms to prevent unnecessary strain; avoid excessive wrist flexion or extension.
- If you experience any elbow or wrist discomfort, try using lighter weights or adjusting the bench to a less steep angle.
Is the Incline Dumbbell Alternative Curl good for muscle growth?
Yes. The incline dumbbell alternative curl is a strong hypertrophy exercise for the biceps because it loads the muscle hard in a lengthened position and makes it difficult to hide weak reps with body English. Higher weekly resistance-training volume is one of the clearest drivers of muscle growth, especially when sets are taken close to failure (Baz-Valle et al., 2022).
- Lengthened biceps loading — The incline bench places your upper arm behind your torso, so the biceps start each rep under stretch. That setup increases tension where many lifters are weakest, which can make lighter dumbbells feel challenging and improve stimulus without excessive joint stress.
- Alternating reps reduce cheating — Curling one arm at a time lets the non-working side stay braced while the working side gets full attention. Compared with standing bilateral curls like the dumbbell-biceps-curl, this usually cuts down on torso sway and keeps tension on the elbow flexors.
- Easy to push near failure — Isolation work responds well when sets finish with few reps in reserve. Recent evidence suggests training to failure is not mandatory, but stopping close to failure can produce similar muscular adaptations, making this exercise effective with controlled hard sets (Hermann et al., 2025).
- Useful variation for full-arm development — Rotating this movement with neutral-grip options like the dumbbell-incline-hammer-curl changes forearm contribution and can help keep progress moving while reducing overuse from one fixed grip pattern.
Programming for muscle growth
Do 3-4 sets of 8-15 reps per arm with 60-90 seconds rest between sides or rounds. Train it 1-3 times per week after heavier pulling work. Use a 2-3 second lowering phase and stop with 0-2 reps in reserve so the biceps, not momentum, determine the end of the set.
Incline Dumbbell Alternating Curl Variations
Alternative Exercises
Built for progress
Take the guesswork out of training
Create personalized AI-powered workout plans that evolve with you. Train smarter, track every rep and keep moving forward, one workout at a time.
FAQ - Incline Dumbbell Alternating Curl
The incline dumbbell alternate curl primarily targets the biceps brachii while also engaging the front deltoids. The incline position creates a unique stretch that particularly emphasizes the long head of the biceps, leading to more complete development of the muscle.
Set your incline bench at approximately 45-60 degrees - steep enough to create the lengthened position for your biceps but not so vertical that you lose the exercise's unique benefits. Make sure your back is fully supported against the pad with feet firmly planted on the floor.
The biggest mistakes include using momentum by swinging the dumbbells, not fully extending your arms at the bottom position, and lifting your back off the bench. Keep your upper arms stationary against the bench throughout the movement and focus on controlled, full-range repetitions.
For most intermediate lifters, performing this exercise 1-2 times weekly within your arm or upper body training days is ideal. Place it in the middle of your workout after compound movements but before high-rep isolation exercises for maximum effectiveness.
Most lifters should use approximately 70-80% of what they'd normally select for standard dumbbell curls. The incline position creates a mechanical disadvantage that makes the exercise more challenging, so prioritize proper form over heavier weights until you've mastered the movement.
Scientific References
A Systematic Review of The Effects of Different Resistance Training Volumes on Muscle Hypertrophy.
Baz-Valle E, Balsalobre-Fernández C, Alix-Fages C et al. · Journal of human kinetics (2022)
Hermann T, Mohan AE, Enes A et al. · Medicine and science in sports and exercise (2025)
Sources are peer-reviewed academic publications from PubMed.
Incline Dumbbell Alternating Curl
Thank you for your feedback!
Thank you for your feedback!