Performing the: A Step-by-Step Tutorial Dumbbell Standing Single Spider Curl
Position your upper arm perpendicular to the floor and your forearm extended in front of you, as if you are about to shake hands with someone.
Curl the dumbbell while keeping the upper arm stationary, continue the curl until your biceps are fully contracted and the dumbbells are at shoulder level.
Hold the contracted position for a brief moment as you squeeze your biceps.
Slowly begin to bring the dumbbell back to the starting position as your breathe in. Repeat for the recommended amount of repetitions and then switch arms.