Todd Davenport of the University of the Pacific and consultant with Workwell Foundation, has published a review of the GETSET study. Slams them for bad science. http://www.workwellfoundation.org/wp-content/uploads/2017/07/GETSET-Trial-in-MECFS-L1.pdf "All the things that made me uneasy as a physical therapist about the PACE trial are back, now in the form of a study involving a slick self-help guide. It’s the same confirmation bias of telling folks to move in the context of a graded exercise program, and then having them parrot back the study hypothesis on standardized questionnaires. It’s the same absence of objective activity measures that result in the same self-fulfilling prophecy of telling people to move more, and then declaring victory when some of them are actually able to do it. It’s the same disregard for foundational scientific evidence of aerobic system compromise, immune activation, and other forms of organic pathophysiology in favor of a behavioral approach to ‘tell the tired people to move more.’"