[quote]USFBUll wrote:
Please explain the CNS relationships with recovery. thanks guys.
[/quote]
Think of the nervous system as being the battery in you body, and the muscles as being the motors. If the battery is drained (hasn’t fully charged), it doesn’t matter how good the motors are, they will not function 100%. Conversely, if the motor is damaged, then the task at hand (the task the motor is carrying out) will not be 100% no matter how good the battery is.
Generally, the nervous system/battery takes longer to recover than the individual muscles/motors do. So while a motor can be replaced relatively quickly, the battery may take longer to “recharge”. The more that the motors are pushed to their “max” (especially with movements that have them all working together at once, AKA compound movements), the longer the battery takes to recharge.
This is why bodybuilders will stimulate the motors/muscles as much as they can, but not too much towards the nervous system. Powerlifters by nature have to work nearer their one rep max and do mostly compound movements to failure/near, which drains the battery much more.
To tell the difference between nervous system fatigue and muscular under-recovery:
With muscular under-recovery (rare because most muscles recover quickly depending on stimulus), you will not be stronger with a particular muscle (the one that’s under-recovered). So while targeting the arms that haven’t recovered properly, you will not be stronger. But, you may be stronger on other bodyparts like legs for example. So if you are stronger on most exercises except one or two, under or over-recovery for that particular muscle group is usually the case.
With nervous system fatigue (something that usually takes weeks to build up), you will not have “power/drive/force” (MOST exercises will be pretty poor). So the muscles may be recovered (and you may be able to do “ok” with higher reps), but the driving force/capacity for hard work (especially with low rep, max load, compound movements like bench press and deadlift/squats) is “flat” and you will not reach max loads. A tell tale sign of nervous system fatigue is a depressive mood/tiredness/imbalance on the feet especially in the morning. A simple recharge is required along with heavy eating.