Arms
Alternating Biceps Curls With Dumbbell
A foundational isolation movement for building symmetry, peak height, and grip strength in the upper arms.
How to perform.
Follow the sequence — setup is half the lift.
Stand upright with your feet shoulder-width apart and a dumbbell in each hand, arms fully extended at your sides.
Position your palms to face your torso and pull your shoulders back to establish a stable starting posture.
Curl one weight toward your shoulder while rotating your palm to face upward as the dumbbell rises.
Squeeze your bicep at the top of the movement for one second, ensuring your elbow stays pinned to your ribcage.
Lower the dumbbell back to the starting position with a slow, controlled motion until your arm is fully straight.
Repeat the same curling motion with the opposite arm to complete one full repetition.
Maintain a braced core throughout the set to prevent your torso from swaying or leaning.
Common mistakes.
Fix these first — they cost reps, kilos, and joints.
- Using momentum or swinging the torso to lift the weights
- Allowing the elbows to drift forward or away from the body
- Failing to fully extend the arm at the bottom of the rep
- Dropping the weights quickly instead of controlling the descent
Muscles worked.
The primary movers do the work; the stabilizers keep the path honest.