Performing the: A Step-by-Step Tutorial Dumbbell Seated Curl
Now, while keeping the upper arms stationary, curl the weights while contracting your biceps as you breathe out. Make sure that only your forearms should move.
Continue the movement 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.
Gradually begin to bring the dumbbells back to the starting position as your breathe in.
Repeat the process for the recommended amount of repetitions.