1 - Stand tall with your feet about hip-width apart, holding a dumbbell in each hand with an underhand grip and your arms fully extended in front of your thighs.
2 - Keep your chest up, shoulders down and back, and elbows close to your torso.
3 - Begin the curl by pulling your elbows backward as the dumbbells travel upward along the front of your body.
4 - Drag the dumbbells close to your torso until they reach the lower chest or upper abdominal area, squeezing your biceps at the top.
5 - Avoid swinging your torso or letting your shoulders roll forward during the movement.
6 - Lower the dumbbells under control back to the starting position, allowing your elbows to move forward as your arms extend.
