Yes. I have posted that the body has 4 different systems that get taxed during strenuous training, each with it's own recovery period. Some systems take hours to recover, some takes days to weeks (nervous system).

This is only a consideration after you have gotten past your beginner's gains, which usually last about the first 6 months after you begin to weight train. After that, all of your nerolgical adaptation has occurred, and you will have to take muscle immunization to exercise into consideration when planning your workouts.

An easy way to do this is to alternate your intensity during the week (heavy days/light days), or split each muscle group into two distinct workouts.

An example of this is say for back.

Workout for Back "A" would consist of pulling movements such as pull-ups, and pulldowns. Use 4 moves (variety of grips), 2 to 3 sets each.

Workout for Back "B" would consist of rowing moves such as bent over rows, cable rows, one-arm dumbbell rows, etc.

During week #1 of your workouts, use back "A"

During week #2 of your workouts, use back "B"

This will vary your intensity, and stress the different areas of you upper/mid back differently from week to week.