Sit at a plate-loaded vertical row machine and grasp the handles with a reverse (underhand) grip. Keep your chest up and core braced. Pull the handles downward toward your torso by driving your elbows back and squeezing your shoulder blades together. Slowly allow the handles to return to the starting position under control, then repeat.
Log your lever reverse grip vertical row sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.