- Grab two dumbbells with an overhand grip and lay your forearms across your knees.
- Let your wrists flex fully, then extend your wrists.
- Grab the dumbbells with a pronated (overhand) grip. You can do this exercise thumbless if it's more comfortable on your wrists.
- Flex at the elbows until your biceps touch your forearms. Try not to let your elbows flair outward.
- Use a handle attachment. The cable should be set all the way to the bottom of the machine.
- Face away from the cable machine. Stagger your stance so you have a better base of support.
- Start with your elbow at a 90 degree angle with your palm facing down. Flex and extend at the wrist.
- Take a double overhand grip that's about shoulder width. Flex your elbows while keeping your elbows tucked in. Try not to let them flare out.
- Curl until your forearm presses into your bicep. Then fully extend your elbows at the bottom of each rep.