This should be an eye opener for some. They're equating PEM with the 'bust' in boom and bust. This is total nonsense of course and shows how little they have listened to patients describing their experiences.
Does anyone relate to the following?
Because the above description has never described my experience.
What is notable is that ALL studies that have objectively measured activity levels show that patients most patients actually have more consistent activity levels with lower intensity peaks compared to healthy sedentary controls, suggesting that "boom-bust" is not a perpetuating factor for a large majority of patients.
Nope.
The idea that GET is built on a deconditioning model is a myth promoted by people who don't understand exercise physiology. Doing the same or a little bit more of a low intensity activity does nothing to reverse deconditioning. Doing somewhat intense activity for a short period of time then doing less intense activity for a few days, before doing intense activity again (slowly increasing that intensity over time) is how you reverse deconditioning.
GET is a type of cognitive-behavioural therapy that targets behaviour, rather than cognitions and tries to break behavioural patterns such as avoiding activity due to fear or kinesiophobia, break hypothetical boom-bust cycles and challenge (through behavioural activation) the cognitive expectations of experiencing symptoms after performing a particular activity. Whether those hypothetical behavioural patterns are common in CFS patients has never been demonstrated using objective evidence (e.g. actigraphy).