According to Michelle Trapp above, more is not always better. Choose a weight that you can lift for 8-10 reps with perfect form.
- Elbows tucked.
- Shoulders back.
- Chest high.
- Feet hip width apart.
- Engage your abdominal muscles.
- Come all the way up and squeeze the biceps at the top for 1-2 seconds before bringing down the bar in a controlled way.
- Full range of motion is required here, you need to fully extend your arms.
Aim for 8-12 reps for 3-4 sets. Reduce the amount of reps if you want to build strength with heavier weights, but maintain form at all times (no rocking back and forth or collapsing into the bar).
If you use dumbbells, you can overcome any weakness in either arm.