Three fixes
- Stabilize the torso.Reduce twisting and use sturdy support or a split stance when needed.
- Drive the elbow toward the hip.Think about moving the upper arm instead of curling the dumbbell.
- Use a controlled full range.Let the shoulder blade move naturally, then finish without jerking the weight.
Programming
Use 2â4 sets of roughly 8â15 reps per side and stop when technique starts changing substantially.