I think that it is somewhat arbitrary to disallow exercise as being a part of recovery. I think that I was pretty clear that a degree of recovery is necessary before one can undertake exercise or it puts us at risk of "chewing up DNA" - or however I put it.
At some point however, careful and graduated exercise will encourage the cells to produce more mitochondria. As well, exercise is one of the few things known to increase BDNF = brain-derived neurotrophic factor which helps the brain generate more connectivity and communication between neurons. In these ways, exercise can contribute to the recovery of ME symptoms.
Can you give us a link to some evidence that "graduated exercise will encourage the cells to produce more mitochondria" in people with ME? What does BDNF have to do with ME? How does increasing it cure ME symptoms?
Assuming that because something is helpful to healthy people it should automatically be beneficial to people with ME is not wise, especially when that something has to do with exercise or mitochondria.
I have seen no scientific evidence that shows that exercise leads to a cure for ME.
Certainly, PWME who are enough improved to work and perform functions of daily living could benefit from conventional exercise for health reasons that are not related to ME -- the same reasons healthy people benefit from exercise. That has nothing to do with ME.
I'm still hoping that those who are claiming improvements in their ME due to exercise will tell us
(1) at what stage of the illness they found exercise improved ME -- mild, moderate, severe?
(2) how bad was their PEM when they started exercising -- how much could they do before PEM set in?
(3) how certain they are they have ME as opposed to chronic fatigue -- where and by whom they were diagnosed?
(4) what kind and how much exercise did they start with and how did they increase incrementally?
Answers to these questions would give the rest of us some sense of when and under what circumstances conventional exercise might be beneficial.
I'm comparing this to other treatments such as antivirals. I can say, "Oh yes, antivirals really improved my ME." but that doesn't mean they are beneficial to everybody with ME. There are particular situations in which antivirals work. Other patients need to know if they are in that situation before they can determine whether antivirals might work for them. To suggest that because they work for me, they should work for everyone diagnosed with ME or CFS would be illogical and stupid.
The same is true for conventional exercise, which is
known to cause a decline in the health of PWME. If it is improving ME in some patients, it is critical to know under exactly what conditions, or with which subset of patients, it is working.