scapular stability

The complexity of fully training the back is illustrated by the vast array of machines and attachments available.
Whether you are an athlete or an office worker, preventative maintenance on your body is a big deal.
Target the scapular (shoulder blade) muscles, which get much less attention than they deserve.
Your level of priority to assess, review, and reverse postural issues should be high.
Not many exercises will tax you as effectively and as quickly. It doesn't take much weight to wear you out here.