Does Massage Work?

I’ve a question about general training.
Can you measure fatigue? And How do you measure it? and How you quantify it?

There is a simple German law on biological system, It say: at every cellular change there will be an electric change and vice versa.

We use Omega Wave and HRV in static and dynamic way plus some other tools to monitorize fatigue or other parameters after bioelectric work or any kind of therapy approach.
You use the appropriate protocol for that biological state of the body.

You can have an O2 drop and after specific work, the O2 raise, or you can have a bad HRV scenario and change it after ARP work.
Or simply you have pain in your leg and directly work with APR or kinesiology or both, without measure nothing.

Practice is much simple and effective.