In my opinion, the diagnostic category of LC is somewhat like gluten sensitivity as a diagnostic category. A minority have something like celiac disease, the symptoms of which have a specific biological etiology. Another minority may have something else that's like celiac disease, but not quite the same thing. And then, because the diagnostic categories are capacious, there's a bunch of other people who have "gluten sensitivity" but in fact their symptoms are due to any number of other factors. Not only that, but some of those people respond well to BPS interventions because the etiology of their condition can be treated with BPS interventions.
It seems like you have a lot of faith in BPS treatments. Can you name a single condition where we have robust evidence that BPS produces meaningful benefit?
Those people — in the case of LC dxs, let's say 30-40%? who knows — should in fact be approached with something like exposure therapy and responsible gradual exercise, and "brain retraining" of whatever kind they seem to get benefit from.
Is there any evidence that demonstrates that these kinds of interventions work? I have never seen it.
Furthermore, we’ve got recent papers by the BPS folks where they openly discuss that many of their «recovered» patients actually have just reframed their health status despite not being recovered. Recovered means to have accepted your situation. Or not working any more so you have less symptoms. So «seems to benefit» covers a lot of ground here.
Additionally, people will report benefiting from things that clearly don’t work, because that’s what people do. Like acupuncture, chiropractors, detoxing, medallions, etc. so clearly reports of benefit are seriously unreliable and not something that can be used to guide medical treatments.
More importantly: If they are allowed/encouraged to believe that in fact they have what the other folks have (the "celiac" subset), they are likely to get worse, and suffer harm, because they will do things like try a bunch of therapeutics, or avoid physical activity needlessly, or become distressed that they will never recover from a condition they don't actually have.
Well, if you fear your life is over like Garner did while being able to scuba dive, you might benefit from a reality check. I have not seen this be the case for many people in LC circles online. Have you?
Where did you get the 30-40 % above from?
I didn't dismiss the reality of PEM. I said that self-report of PEM doesn't line up with what studies seem to find. That's true. I stand by it. Another recent 2 day CPET study showed the same thing. We can move the goalposts on 2 day CPETs as a good way to dx PEM, but I'm very confident that self-report of PEM and actual PEM don't align, just like self-report of neurocognitive issues doesn't always align with actual ones.
Trish has just looked at the evidence you linked for this claims and it’s not good. If you’re prepared to «stand by» that, I would encourage you to reconsider. You can always find someone agreeing with you in a paper, that doesn’t mean their reason for agreeing is valid.
The reverse is also true! Sometimes people think they *don't* have neurocognitive issues when they do (common in dementia). Self-report of lots of things is unreliable. PEM is no different, and the studies I've seen keep verifying that.
Oh, so now self-report is unreliable, but we have to trust self-reported inferences of causality about brain-retraining being effective?
Don’t you see how conflicting your stances are? It’s ironic that you accuse others of being inconsistent at the same time, based on strawman arguments that none of us have made.
I'm not staking out that position. I was replying to Hoopoe, who said this: "Keep in mind that patients have a lot of lived experience with how their illness responds or does not respond to outside events and their own mental state. We observe all these factors every day." I am simply saying that if we are going to take those patients lived experience seriously, and therefore believe them about how their illness does or doesn't respond to outside events and their mental state, then that extends to those patients who feel they experienced relief from mind-body interventions. I'm merely showing how what Hoopoe said would apply to them.
I think you’ve misunderstood what PEM is. You’re not alone in this, and it includes a lot of patients.
PEM is an observation of a pattern of typical ME/CFS symptoms worsening after doing more than you can normally do while experiencing a relative stability in symptoms and functional capacity.
To say you have PEM is not to say that those symptoms are
caused by X or Y.
When someone say they deteriorated «from» x or Y, we don’t simply accept that as truth. For all we know they might have deteriorated from natural causes, because ME/CFS is a fluctuating disease.
However, studies like MAGENTA and FITNET-NHS documented deterioration in ~20-25 % of the participants. So we know that trying to do more than you normally do can be harmful.
CARE_CFS documented a worsened bell score in 44 % of their participants, yet the participants said they were happy with the programme.
And studies like those of Kielland show that for those that have already lost their income, returning to a functional level where you can earn an income is exceedingly rare in the population that has received a G93.3 diagnosis. So long term loss of function is the norm.