ME/CFS Science @mecfsscience.org · Jun 4 5) The big overlap in 2-day CPET results between ME/CFS patients and controls makes it unlikely that this test accurately measures PEM. Because it would mean that either a lot of ME/CFS don’t have PEM or that a lot of healthy controls have it as well.
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6) This new paper by Natelson also suggests that the ME/CFS patients in their study reported more symptoms following exercise, even though their mean CPET results stayed the same.