Healthy sedentary controls from another trial by the PACE lead principal investigator, with the same mean age of 38 years as in the PACE trial, had a physicalfunctioning score of 100 (and a bimodal fatigue score of 0; White et al., 2004). Additionally, in Deale et al. (2001; which included one of the principal investigators of the PACE trial), a physical-functioning “cutoff score of 83 was used” for participants with a mean age similar to Pace, “as it represents the ability to carry out moderate activities” which does not represent recovery in healthy 38-year-olds. A score of 70 represents significant reductions in physical functioning (Reeves et al., 2005), and a score of 65 or less represents an “abnormal level of physical function” according to PACE (White et al., 2013) and severe disability according to the literature (Stulemeijer et al., 2005). Participants with a score of 60–65 (inclusive) were thus considered to be ill enough to participate, to have abnormal level of physical functioning yet also to be recovered and severely disabled.