How to do: One Arm Supinated Dumbbell Triceps Extension

Step-by-step instructions

1. 1Lie flat on a bench while holding a dumbbell at arms length. Your arm should be perpendicular to your body. The palm of your hand should be facing towards your face as a supinated grip is required to perform this exercise.
2. 2Place your non lifting hand on your bicep for support.
3. 3Slowly begin to lower the dumbbell down as you breathe in.
4. 4Then, begin lifting the dumbbell upward as you contract the triceps. Remember to breathe out during the concentric (lifting part of the exercise).
5. 5Repeat until you have performed your set repetitions.
6. 6Switch arms and repeat the movement.
7. 7Switch arms again and repeat the movement.

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