Article with some great information...

Christian Thibaudeau has a very good new article on T-nation.com....

http://www.t-nation.com/article/most_recent/beast_building_part_1
Christian Thibaudeau has this to say about training the Central Nervous System in his article...

"When I give seminars, one thing that I often say is that the more emphasis you place on the development of the central nervous system (CNS), the more frequently you should train a muscle group. And the more you want to put the emphasis on the development of the muscles, the less often you train each muscle.
The reason for that is simple: Developing the CNS is akin to motor learning, not structural reconstruction. In weight training, developing the CNS could be simplified into "learning to use the muscles you have optimally."
If you want to become a better golfer, you must practice your swing often. If you're allowed to hit 700 golf balls per week, it's much more effective to hit 100 balls everyday than 700 once a week. This is the first rule of motor learning: The frequency of practice is the key to assimilating a skill.
And understand this, activating your muscles, ensuring optimal recruitment patterns, and maximizing inter and intramuscular coordination is a skill, not a physical capacity. To improve it optimally, you thus must treat it like the process of skill acquisition. And that demands a high frequency of practice.

...one of the tenets of motor learning is to perform as many specific and technically correct repetitions of the target movement, without causing a significant fatigue accumulation.
Former Soviet Olympic lifting coaches determined that lifts below 80% of one's maximum have a different recruitment pattern than maximal lifts. This means that to maximize motor learning in the context of strength improvements, lifts must be at or above 80% of one's best effort in the practiced lift."

Muscles are dumb - They only do what the neurological system tells them to do!