It is like a cable pulley row, only you use the rope attachment and bring it to your neck..... so basically row to the neck.... you could do it horizontally, or at an angle from the cable station... for such light weight used it really destroys traps and rear delts
i have this problem too. I'm having trouble believing it's tightness in my chest or front delts because they're so weak/underdeveloped (I almost never train my chest). my traps by comparison are pretty strong from all the deadlifts and oly lifts I've been doing. I'll start stretching my chest and front delts and neck muscles though, and I've already begun prioritizing rear delt/lower trap strength which i neglected for a while (bent rows and face pulls). my lats are already really flexible although they're pretty strong. I'd love to get this corrected, I think it causes unnecessary strain on my back when I land on my feet from heights. also looks a little strange.
lower back work will help your upright posture...and besides bent over rows, which will work , do seated rows...these will help your lats ,which pull opposite of your chest...its an oppossing muscle group to your chest
My posture has been bad for a LOOONG time...got better when I started training, but it's still not very good.
I just recently started going to a new chiro who found several things wrong (hips out of alignment, fallen arches, etc) as well as a slight scoliosis that I knew about.
I'm getting custom orthotics to help with my gait, as well as weekly treatments and adjustments to hopefully get me back along the lines of a normal human.