Lie face down on a flat bench with your head hanging off the edge. Hold a weight plate or small dumbbell against the back of your head using both hands. Start with your neck in a neutral position, then slowly lower your head toward the floor. Lift your head upward by extending your neck until it aligns with your spine. Pause briefly at the top, then lower back down under control. Repeat for the desired number of reps.
Log your weighted lying neck extension sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.