question about this circuit (Muscle Voltage Amplifier)

i'm currently making my thesis for my last year in colege and i was thinking of making a device that can amplify the voltage discharge of our muscle when they are contracted. it's the same concept as the prosthetics, well you can say that i it like the prosthetics where if you move your arm then the prosthetics will also move.


i found this pdf file in this website **broken link removed**

i'ts a bit old but do you think this circuit will work? and will i be able to connect a switching device on the output of the circuit so that i can turn on or off a small motor?

please i need any sugestions or if you know any circuit diagram that can be easily done.

thank you very much....

here if the pdf file...