Safety · read before trying any exercise plan
If you crash after activity, pacing protects you. Pushing through can cause lasting harm.
The harm
For people with post-exertional malaise, graded exercise therapy is not a treatment. It can make the illness worse, sometimes for good.
Graded exercise therapy (GET) harms Post-exertional malaise (PEM/PESE).
Recumbent / supine-biased rehabilitation (PEM-bounded) manages Exercise intolerance / reduced VO2.
What helps instead
Pacing, staying inside your energy envelope, is the protective approach supported by patient experience and clinical consensus.
Pacing / energy-envelope management manages Post-exertional malaise (PEM/PESE).
This is not deconditioning
The old explanation, that patients are simply out of shape, is contradicted by the physiology. It persists by repetition, not evidence, and it is dangerous because it leads to harmful exercise prescriptions.
The idea that Physical deconditioning explains Exercise intolerance does not hold up; two-day exercise testing and muscle biopsy show otherwise.
The idea that Deconditioning (as cause) explains Exercise intolerance / reduced VO2 does not hold up; two-day exercise testing and muscle biopsy show otherwise.
Where this warning appears
This safety message is carried automatically onto every page it touches:
- Exercise intolerance / reduced VO2
- Post-exertional malaise (PEM/PESE)
- Graded exercise therapy (GET)
- Recumbent / supine-biased rehabilitation (PEM-bounded)
- Deconditioning (as cause)
- Physical deconditioning
- Exercise intolerance