It's Electrafyin'!!! Yes, I have done a lot of troubleshooting of circuits in my life, but never before had I ever had MY circuits troubleshot - until this week. In this video I give a little talk about my experience getting a set of EMG tests on my arms and hands with photos and a basic description of the processes involved. Enjoy!
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Join Team FranLab!!!! Become a patron and help support my YouTube Channel on Patreon: http://www.patreon.com/frantone
#EMG #hack #scope
- Music by Fran Blanche -
Frantone on Facebook - https://www.facebook.com/frantone/
Fran on Twitter - https://twitter.com/contourcorsets
Fran's Science Blog - http://www.frantone.com/designwritings/design_writings.html
FranArt Website - http://www.contourcorsets.com
There is a medical specialty called "Electrophysiology". The name says it all as it is the study of electrical circuitry in the body. A lady friend of mine was having heart "flutter" which was basically the heart going into self oscillation. She went to such a specialist and had a procedure where they make little cuts in the heart muscles. I talked to the specialist and said, "You are just cutting off the feedback paths." He said yes, but there is a lot of guesswork to it. While waiting, I studied a chart on the wall of various problematic heart rhythms. When he was done, he chatted with me awhile and I told him I had been studying that chart. He brought out some real charts to see if I could identify the problems. I got every one right. Even some that were complicated because they combined two issues. I credit my years of looking at oscilloscope waveforms for being able to "see" such things pretty easily. It's like when the game "Pong" first came out. I could beat anybody because I had the eye-hand coordination from years of turning that Y axis adjustment on scopes. Of course, my advantage didn't last long as others developed their skills and passed me by..
Fran, the stimuli probably uses a current generator, so the voltage is highly variable depending on your skin resistance. Get similar sized probe and you can measure your skin resistance. If you know resistance and current, you have the voltage! No?
5:98 Would 60 V DC actually do anything if the skin is still intact?
Fran, there is a whole field that has to do with how EMF interacts with our cells. A good start is "Earthing: The Most Important Health Discovery Ever." by Clinton Ober, Stephen Sinatra, MD. and Martin Zucker. There other books and many videos on the topic. Very basically the idea is that the electrical devices called cells operate at an optimum voltage of no more than 50 millivolts (0.50 mV). Average cellular voltage is 20 millivolts (0.20 mV). It is common for those who are around a lot of EMF from electronics and electrical devices to get body voltage up to 4 volts (4.0 V). Not good. This is nothing new: U.S. Navy research from the 1970's is often cited as early evidence. Lately, with the explosion of scientific research, instrumentation that reveals cellular effects, and the Internet the concept has become more widely known. It is easy (if you have electronics knowledge) to measure your body voltage with a common digital VOM. The simplest solution is to ground your body. This ranges from standing barefoot on grass (where you can see your voltage drop quickly) to grounding yourself inside (where you can see your body voltage drop rapidly. Ambient EMF , as a form of radiation, is an abstraction to most people. An old idea in science is: "You understand what you can measure." Fortunately this is simple with body voltage. I sent a PDF to your email that visualizes the procedure.
Had several EMG tests on my arms and even my legs once. Some people say it's moderately painful. Others say, it's not that bad. Depends of the technician or doctor doing the test. Some are a little rough on you. I've had the surgery done on my right hand over 10 years ago.
Once the damage is done, there's no fixing it. The surgery just relieves the pain and numbness.
I have severe nerve damage in both my hands and arms. Not shaking, but I can't feel the shape or position of small parts in my fingers anymore. Being a machinist, it makes my work more difficult, as now I have to look at the parts, to be sure they orientated in the correct position.
Getting old sucks…
A bit off topic, but related, my dog recently had pups and I stumbled on an article that discussed the development of the pups senses. It takes about 10 days before their eyes open but it takes several more days before they are able to actually focus, see and recognize objects. They are also born deaf and it takes several days before their hearing starts to function.
And lastly, it takes as long as a month or more for their motor skills to develop, to control their muscles and what not. Reason being, it takes time for the melanin(?) sheaths to develop around their nerves, kind of like the outer insulating layer on an electrical wire.
I’m one of a tiny minority that has limited pain response.
This means that I either don’t feel pain properly, or have the neural response that is called for when a pain-inducing event occurs.
It is genetic, and so until halfway thru life, I had no idea that I’m not “ normal”.. and Carpal tunnel was what brought it to light.
My hand specialist was delighted. He insisted that, before surgery, we study my situation, for a baseline. Little did I know that
the extent of my “normal” was so rare. So..I agreed to participate in the study. I was sent to meet the “pain nazi”.
Needles were progressively increased to the size of knitting needles. Voltage and amperage increased to the limits of the
equipment, and safeties were disengaged. No matter what they did, they got zero response. I was amazed.
I had no idea this was gonna go like this. During my work career, I became an electrician, and later abandoned the high
voltage work, because I was electrocuted badly enough to burn tissue, several times, and didn’t notice until later.
Not good. Anyway, the pain tech was progressively amazed. Her eyes grew wide as she applied ever more and I didn’t
flinch. After forty minutes, she stopped ( with a variety of needles & wires attached ) , rolled her eyes, and says : “ you didn’t
feel any of that”..? Well, “ Hell YES, I did”.. I explained. The process is different for me. I am aware of damage as it happens.
The test concluded. The specialist performed the surgery. And going forward, I have experienced some symptoms similar
to Fran’s. Sometimes I need to do a bit of Alpha-feedback meditation to calm my “nerves”, when I need a steady hand.
It’s all in your head, Y’know…
I have had numerous EMGs in my life. They are not fun for the patient, but for the person giving the test it can be quite amusing. I had the tests for diagnosing spinal issues.
Just wondering if you got plenty of Heathkits at Christmas …
I've had a few as part of my Charcot-Marie-Tooth diagnosis. My first time included a needle in the tongue also. That was not fun.
Is this similar to a nerve conductivity test which I have had years ago?
Cute hat your wearing!
So I guess thy found that you need your Flux Capacitor replaced. LOL Great story. I had this done once and the Dr didn't tell me what to expect. After the first shock I said that that must have been about 20ma because it hurt a little. He looked at me your right and then asked how I would know such a thing, it's because of my background I told hem. He'd never had tested anyone before that knew about electricity.
They shocked me into hell when I had to see if I had to have surgery on my my wrist,s !
Very interesting talk maybe something that i should go through.I suffer with electric shocks in my right arm.Its like being hit with a cattle prod.I take 6pills a day to try and stop it.Every now and then my left arm would tremor.Thank heavens for gabapentin tablets.Yes a very interesting talk.👍🤗🐻
I had this same test earlier this month to diagnose carpal tunnel syndrome (differential diagnosis to ensure it's not a pinched nerve from my neck.) The first test with the shocks, I could see the amplitude and timing of the "return" wave (I forget what it exactly was). I actually fell asleep while being shocked.
please switch on subtitles [CC] Closed captioning
You made an unpleasant thing into a learning and educational opportunity, for sure, though I'm sorry you had to endure the discomfort. Question about Fran's internal circuitry, does it operate using 6 or 12 volts on the filament, in case we need to order spares for her?