rows
heres a couple of pics, 2 of the starting position, 1 of the finished position. looks so simple im almost embarrassed to post them... and this kid is terrible at relaxing his upper back at the start, but you can see that he is "scunching" his upper back at the top, trying to arch the upper spine as much as possible, thats really the key to get as much activation as possible, making the attempt to arch your back, upper back specifically as much as possible at the top, without extending the hips. you can see that his hip angle doesnt change at all, the chest comes up becasue he is arching his back as he pulls but the hips dont extend. when you let the bar down, let the upper back relax, and if possible bend the spine a little and let the shoulders come forward, then as you pull the bar up, pull the shoulders back, arch the back, and pull with the arms all at the same time. looks simple, and really is simple to do once you do it once and see how it feels. with a guy like t his who cant bend his upper back that well, it doesnt look much different than any other row, but again, its the effort to pull tyhe shoulders back and arch the back as you pull that makes the difference, even though there will be more spinal and shoulder movement in some people than others.