Thank you for your reply raschemmel, you are absolutely right about me using the wrong terminology. I frankly don't know what is the appropriate name for what I need that is why tried to draw it in the image so someone would guess 
what I'm asking.
With that said, I'm using Teensy 3.1 which is a 32bit arm processor and it seems to be doing very well. at collecting the data.
I'm attaching a log file that mainly has data with the arm at rest.
I can add one with me doing full contractions if you think it will help.
GMOTION3.csv (13.7 KB)