How to do it
- Hold a pair of dumbbells at your sides with your palms facing each other
- Keep your back straight and your chest up.
- Curl the dumbbells up toward your shoulders by bending your elbows until your forearms are perpendicular to the ground. Hold for a second, squeezing your biceps as you do so.
- Return the dumbbells back to the starting position.
- This counts as 1 rep.