Quote Originally Posted by Docd187123 View Post

Of course, but just because a muscle or part of a muscle is worked by a specific movement, and because of this possibly sore, still does not mean you got a good workout in. Simply using the muscle enough to cause soreness is not enough to warrant an adaptation to training.
The point is to see what muscles or part of a muscle is worked by doing a specific movement. For instance by doing a tricep pushdown with a straight bar works what part of your tris verses a rope. Maybe a bad example but you should see the purpose. That way you can target what you need to bring up and what movement works that area for you. No mention was made as to soreness equaling a good workout. This statement was strictly about how to target areas you want to work.