Stand with feet shoulder-width apart and hinge at the hips with a straight back. Grasp the single handle on a plate-loaded lever machine and pull it up toward your hip, leading with your elbow and squeezing your shoulder blade at the top. Slowly lower back to the start with control while keeping your torso stable and core engaged throughout the motion.
Log your lever one arm bent over row (plate loaded) sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.