A doctor with severe ME/CFS "exercises" and then does blood lactate tests and discovers something extraordinary.
It's a long article - some excerpts are below.
https://sciforschenonline.org/journals/neurology/JNNB-1-112.php
I LOVE how he describes himself
This is what happened to him (talk about sudden onset)
He measured his creatine kinase (CK), inorganic phosphate (Pi) and lactate before and after exercise. The exercise this former athlete engaged in? Walking 5-6 yards from his bed to the bathroom.
His normal CK levels indicated that there was no sign of muscle damage and the normal inorganic phosphate means that inorganic phosphate was not responsible for the delayed muscle recovery. His lactate levels before his little walk were normal; after it, however, they were abnormally high. In fact they were so high that they were beyond the level at which healthy people would stop exercising.
Surprisingly another burst of lactate showed in his blood about 30 minutes later. That means his muscles were either producing so much lactate that they couldn't get rid of it early or that his cells are so miserably poor at removing it that even 30 minutes later they still had not gotten rid of it (or both). Of course lactate produces muscle pain, etc.; so his muscles were in pain while the lactate was present in them. ....all from a 5-6 yard walk...His lactate levels were higher than most professional athletes will never reach during the most strenuous exercise. .Remember - his lactate levels were normal at baseline...
This will blow you away
It's a long article - some excerpts are below.
https://sciforschenonline.org/journals/neurology/JNNB-1-112.php
I LOVE how he describes himself
Prior to falling ill with pneumonia, which triggered my ME, I was fit and well, was hardly ever ill and was very sporty. I do not smoke, and hardly ever drink alcohol. I have a brown belt in judo; I’m a former Dutch national field hockey champion, captain of my team; I ran marathons (PB: 3.05), half marathons (PB: 1.19), and competed in quarter triathlons.
I do not have a history of an autoimmune disorder, MS, psychosis, major depression, heart disease, thyroid-related disorders or any other chronic illnesses apart from ME, I had a very happy childhood, no childhood traumas, I’m not a perfectionist, I do not suffer from anxieties, mental health problems were excluded by a consultant psychiatrist and there are no confounding factors influencing my ME.
This is what happened to him (talk about sudden onset)
I developed ME after picking up pneumonia from a patient, who coughed me in the face, and during the first few weeks of falling ill with ME, my legs needed 15 minutes to recover from walking 20 to 30 yards, before I could walk the same trivial distance again, which illustrates the abnormally long periods of rest to recover from minimal exertion. In the days before I developed ME, walking that distance was easy, even though I was still recovering from pneumonia, coughing a lot and still on antibiotics.
So suddenly, from one day to the next, I lost about 70- 80% of power in my legs, about 50-60% of power in my arms, I began to suffer from severe dizziness, I started to have daily headaches, from which I had never previously suffered, and I started to have problems sleeping for no reason, which I never had before either. The problems with walking were even stranger because I looked well, I didn’t feel ill and before the pneumonia I was fit and well, I was hardly ever sick and shortly before I fell ill with pneumonia, I was running 3-4 times a week, with a long run of 20 to 25 km on Sundays and I do not smoke and hardly ever drink alcohol.
............
The pain and symptoms in my legs after a trivial walk feel very similar, albeit a lot worse, to the muscle symptoms I had in the past after a very strenuous training, and the objective therefore was to try and identify the underlying bioenergetic muscle problem in ME, responsible for the exercise intolerance, rapid muscle fatigue and delayed muscle recovery.
He measured his creatine kinase (CK), inorganic phosphate (Pi) and lactate before and after exercise. The exercise this former athlete engaged in? Walking 5-6 yards from his bed to the bathroom.
His normal CK levels indicated that there was no sign of muscle damage and the normal inorganic phosphate means that inorganic phosphate was not responsible for the delayed muscle recovery. His lactate levels before his little walk were normal; after it, however, they were abnormally high. In fact they were so high that they were beyond the level at which healthy people would stop exercising.
Surprisingly another burst of lactate showed in his blood about 30 minutes later. That means his muscles were either producing so much lactate that they couldn't get rid of it early or that his cells are so miserably poor at removing it that even 30 minutes later they still had not gotten rid of it (or both). Of course lactate produces muscle pain, etc.; so his muscles were in pain while the lactate was present in them. ....all from a 5-6 yard walk...His lactate levels were higher than most professional athletes will never reach during the most strenuous exercise. .Remember - his lactate levels were normal at baseline...
This will blow you away
It might sound strange but walking back and forth to the toilet is more difficult than running a marathon. However if you see my lactate levels of 8.0 mmol/l around the 5 minute mark, and 11.8 mmol/l around the 30 minutes mark, both produced by the same exercise, it means that the actual lactate production for this very trivial exercise is 19.8 mmol/l. That is a level that many professional athletes will never / not often reach and that sort of level of lactate makes it easy to understand why this trivial walk is so strenuous an exercise for me and more difficult than running a marathon.