How to do: Standing Inner-Biceps Curl

Step-by-step instructions

1. 1Stand up with a dumbbell in each hand being held at arms length. The elbows should be close to the torso. Your legs should be at about shoulder's width apart from each other.
2. 2Rotate the palms of the hands so that they are facing inward in a neutral position. This will be your starting position.
3. 3While holding the upper arms stationary, curl the weights out while contracting the biceps as you breathe out. Your wrist should turn so that when the weights are fully elevated you have supinated grip (palms facing up).
4. 4Only the forearms should move. Continue the movement until your biceps are fully contracted and the dumbbells are at shoulder level. Tip: Keep the forearms aligned with your outer deltoids.
5. 5Hold the contracted position for a second as you squeeze the biceps.
6. 6Slowly begin to bring the dumbbells back to the starting position as your breathe in. Remember to rotate the wrists as you lower the weight in order to switch back to a neutral grip.
7. 7Repeat for the recommended amount of repetitions.

Photos & base instructions from the open-source Free Exercise DB (public domain).