SportsArt Plate Loaded Series combines quality & value in a simple, easy to use strength line designed to accommodate users of any fitness level or experience. A979 Low Row works on the middle upper back ,rhomboids & mid upper trapezius.It is the most significant exercise for the upper body & it also helps in building the upper body posture. Also builds muscles which helps in picking up things & stabilizing the core muscles.It is an iso lateral machine, works one arm at a time, both at a time or alternatively.