Alternate arms, lift to shoulder height. Mistakes: Swinging weights, raising too high.
Start by holding the dumbbells by your sides with palms facing behind you.
With your arms straight, raise them up until your hands are at shoulder height.
Slowly lower them back to the start position and repeat.
Swinging the weights up with momentum.
Hinging from the hips to pull up weight.
Bending the wrists.
Full range of motion, keep upper arms still. Mistakes: Using momentum, incomplete curls.
Extend arm fully, keep upper arm still. Mistakes: Using momentum, not fully extending arm.