Fatigue (Or as we used to say in the 90's phat-igue)

If you recall, last week I began to start to sort out the crazy puzzle of conditioning.  If you missed it well then you can check it out here... http://www.hpi-ibji.com/blog/2015/2/16/conditioning-is-confusing

However, before we can keep talking about performance and energy systems we also need to briefly discuss fatigue. 

You've seen it before. An athlete gets exhausted and just can't compete for whatever reason.  As a result they get destroyed.  Well as the old adage goes, "fatigue makes cowards of us all".

That being said, fatigue is actually a natural safe guard our body imposes to protect itself from serious damage.  While it may hinder your performance, fatigue itself is actually a good thing.  In last weeks blog I discussed ATP and well bottom line is if our body ever truly ran out of ATP then it would cause catastrophic damage to our cells. 

However, fatigue isn't just cut and dry, there are actually two types of fatigue; central fatigue, and peripheral fatigue.  

Central fatigue is the fatigue of our central nervous system (hence the name).  When this happens our body sends out fewer signals to the muscles, so as to ensure that less force is produced. 

central fatigue.jpg

Most research on central fatigue centers around endurance runners.  If you've ever ran for long distance the tiredness you feel at the end is often this type of fatigue. Many times it can be seen in the acute hindrance of coordination. 

Peripheral fatigue is more akin to your muscles. This is most recognizable when think of lifting to failure.  You eventually get to a point in which your muscles just don't want to move.

muscular fatigue.jpg

So those are the two kinds of fatigue in a nutshell.  Truth is, that fatigue is a necessary evil, and as we continue in the series of energy systems and conditioning I'll continue to provide methods, and ways to train to help make sure that your body continues to increase in its ability to better utilize its energy systems.

We can never truly eliminate fatigue, but the better conditioned we are the longer we'll be able to last before fatigue fully sets in.

-Dave