Biceps · Machines

Lever Alternate Biceps Curl

The lever alternate biceps curl is an isolation machine exercise designed to target the biceps brachii using independently moving arms. It suits lifters of all experience levels who want to address strength imbalances and fits best in the middle or end of an arm workout.

Muscles: Biceps
Equipment: Machines
Type: Strength
Animation: Men

How to do it

Sit or stand at a biceps curl machine equipped with individual lever arms.
Grasp each handle with an underhand grip.
Start with your arms fully extended and palms facing up.
Inhale and brace your core. Exhale as you curl one arm towards your shoulder, flexing the bicep.
Keep your elbow stationary and focus on isolating the bicep muscle.
Slowly lower the handle back to the starting position.
Alternate arms with each repetition, ensuring a controlled and steady movement for each arm.

Common mistakes

Lifting your elbows off the support pad shifts tension away from the biceps and onto the anterior deltoids.
Letting the weight drop quickly eliminates eccentric muscle tension and puts excessive stress on the elbow joints.
Swinging your upper body to gain momentum reduces isolation and limits the exercise's effectiveness.

Tips

Adjust the seat so that your elbow joints align directly with the machine's axis of rotation.
Pause for a brief second at the top of the curl to maximize the peak contraction.
Keep your wrists neutral throughout the set rather than curling them inward under load.

Sets and reps

Perform 3 to 4 sets of 10 to 15 controlled repetitions per arm to build muscle and improve endurance. Rest for 60 to 90 seconds between sets.

Muscles worked

Your coach guides every set

Turn on the coach in Gloox: it asks how you feel, picks the weight from your history and cues technique and rest. Rate each set and the next one is tuned to you.

App Store Google Play RuStore

On a computer? Point your phone's camera here to get the app.

Questions

Why curl one arm at a time instead of both together?

Alternating arms enhances mind-muscle connection and prevents your stronger side from compensating for the weaker one.

What can replace this machine if it is not available?

Alternating dumbbell curls on a preacher bench provide a very similar angle and resistance profile.

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