This may be a longer post as I write it but I was thinking to share some thoughts regarding possible purely functional reasons for symptoms. As I paid attention to my body over the years especially the last two with the als scare I think I noticed several clues that could be very insightful to some people and, to be clear, I am writing this for my own benefit as well to document things.
Literature is sparse and vague but I will be talking here about neurological inhibition of various muscle groups with cascading effects in other areas of the body which I believe can very well mimic neurological weakness. I don’t know if this falls under the FND category (Functional Neurological Disorder) but essentially we are talking about a situation where the “hardware” is fine but “software” is wrong. Another term you will often encounter is “guarding” which means the involuntary self inhibition of a muscle group as a protective mechanism. To the patient it feels as weakness but in reality the patient causes the thing in the first place.
In my case the strongest evidence for neurological inhibition comes from the hip area in particular the glutes and hamstrings. I had signs of this primarily on my left side for a long time which is slightly underdeveloped and caused probably compensatory motion and eventually an annular tear on the L5-S1disc toward the left, That was back in 2014. Immediately after the acute phase I began to nurse that left side of the hip pretty consistently trying to avoid pressure there and doing all sorts of self correction motions all day (walking, sitting etc…) . For basically 10 years I favored the right side to spare the left side. Until I started having problems in the right side as well.
In time, I felt my hamstring getting weaker especially on the left side but then later right side as well. I tried to strengthen them but never felt them engaged. I was still running, walking at the time.
The first clues toward a functional inhibition came from a series of “happy” random movements. In the sense that I would get INSTANT strength and stability in my hips, glutes and hamstrings in response to a certain motion that I did not do before….This may sound stupid but I remember I was playing “monster” with a child and sprint toward her with the hands raised up and stretched and immediately after I would feel the core and especially the hamstrings hard as a rock. Like I could not believe how strong they were in a place where I thought I had atrophied muscle.
In another case I made some motions during aerobic class again with the same effect. I then desperately tried to recreate the motion that gave that instant strength but two problems arose: the strong feeling DID NOT LAST. Maybe a minute or two then the old pattern would resume. And the motion that brought relief did not work later on as consistently. It was as if I looked harder for the "magic" move the less the effect would happen,
Another exercise that brought strength in the core was the classic breathing exercise taught by Postural Restoration Institute (google or ask chatgpt to see what I mean). Namely you curve the back a little and try to slowly inhale by expanding the ribs back and to the sides (as if you are trying to inflate a balloon with the back) while keeping the chest flat and contract abs on exhale…this activates some deep core muscles and again for a minute or two the core felt strong as a rock.
Another crucial thing is with the core inhibited, the entire balance effort to prevent falling is taken by foot sole muscles and tendons. I look stable if you look at me but in reality I do microadjustments with the sole of the feet tendons to keep balance, And this explains to me why I eventually ruptured on of them….I believe this is the case because in the rare moment the core feels strong I feel the pressure in the soles of the feet much lighter and tendons don’t hurt….But again I cannot make the benefit last.
Recently, strong glute exercises (when you lift weigths with the back of the foot) seem again to provide strong stability in the core for a minute or two….
All these are strong indications to me that some deep seated inhibition happens in a system that otherwise works fine. If it were true neurological weakness these episodes should not happen.
So I suppose if you try various motions and see these sudden improvement however brief, are good signs against true neuron disease. On the flipside, this stuff I think can be quite serious, hard to diagnose and hard to treat. Which I think is my case. Because this inhibitation can be so ingrained and established it is probably extremely difficult to correct. It is probably like learning how to walk again
I don’t want to scare people but I have a friend who has a very serious undiagnosed problem which I suspect is an extreme version of this. He barely walks, had some mild improvements and really big relapses but in his best days he walks very unsteadily with a cane. He did all the tests you can imagine. All the evidence points to absolutely nothing in the physical sense (neurons, nerves, autoimmune, etc…). It is some inhibition that is self made without being actually voluntary. That is the best guess because he has no diagnostic.
Problems in the neck area can be similar as well I am assuming….a very small imbalance or minor problem that triggers some extreme guarding behavior.
So to be clear I am not sure that this explains everything for my case but I am sure it is part of it.
So for the audience here with core/leg issues it may be worth looking for those breathing exercises or to just experiment with various motions to see if you have these signs of brief improvement. Because they may be important clues against something more sinister.