Stand with feet shoulder-width apart on the band or anchor it low. Hinge at the hips with a flat back and slight knee bend. Hold the band with both hands, palms facing inward, and pull toward your torso by driving your elbows back and squeezing your shoulder blades together. Lower with control and repeat.
Log your band bent over row sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.