Patterns of daytime physical activity in patients with chronic fatigue syndrome

To classify patients with chronic fatigue syndrome (CFS) by pattern of physical activity and determine the clinical associations of each type. 579 out of 641 participants with CFS from the PACE (Pacing, graded Activity, Cognitive behavioural therapy: a randomised Evaluation) trial wore an Actiwatch (accelerometer) for between 3 and 7 days before any trial treatments, which provided a measure of physical activity. Participants' activity was...