Stand Straight with your feet Shoulder-width apart and hold a pair of dumbbells with a pronated (Overhand) grip.
2. Stick your chest out, Unshrug your shoulders and contract your lats and abs.
3. Curl the dumbbells Up towards your chest and squeeze your forearms. Hold the contraction for a moment and slowly come back down.
4. Repeat the movement until fatique.
Working muscle/muscles:
