Sit on a plate-loaded lever machine and adjust the padded head support to the side of your head. Grasp the handles for stability, then slowly flex your neck laterally toward the pad by bringing your ear toward your shoulder. Pause briefly at the bottom of the movement to feel the contraction, then return to the starting position with control. Focus on smooth motion and avoid jerking to maintain tension on the neck muscles. :contentReference[oaicite:1]{index=1}
Log your lever neck left side flexion (plate loaded) sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.