1
Sit on a flat bench with your forearms resting on your thighs, palms facing upward. Grip a loaded barbell with both hands using a supinated (underhand) grip, with the bar positioned just above your knees. Keep your upper body upright and stable.
2
Position your hands shoulder-width apart on the barbell. Ensure your forearms are fully supported on your thighs with only your hands and wrists extending beyond your knees. Maintain a neutral spine and engage your core for stability.
3
Slowly lower the barbell in a controlled manner by extending your wrists downward, allowing the bar to roll toward your fingertips. Feel the stretch in your forearm flexors as the weight descends. Pause briefly at the bottom position.
4
Contract your forearm flexors to curl the barbell back up by flexing your wrists, returning to the starting position with palms facing upward. Squeeze the forearm muscles at the top of the movement and repeat for the desired number of repetitions.