Lever should be forward with lever handle down. Push elbow pad forward with forearm, grasp handle with overhand grip. Sit on seat with arm pads and lever to side and position in elbow pad at shoulder height. With opposite hand, grasp seat handle if available, for added stability.
Pull lever handle upward and back as far as possible by rotating upper arm. Lower lever to original position. Repeat. Continue with opposite arm.
Exercise can also be performed with seat facing inward at 45° but this may limit internal rotation ROM of shoulder and supraspinatus will not assist.