Your back is the biggest muscle group after your legs. It can also be one of the hardest muscle groups to train since you can’t see your back directly in the mirror and hence it can be comparatively hard to establish a mind-muscle connection.
If done right, a good back workout should be as grilling as a brutal leg workout. You should be running on fumes when you’re done with your back workout. Building a cobra back can take a lot of effort, patience, and persistence. It is no surprise only a few people have a jacked back.