1. Symptom Fluctuations and Daily Physical Activity in Patients With Chronic Fatigue Syndrome: A Case-Control Study 
Mira Meeus, PhD, Inge van Eupen, OT, Ellen van Baarle, PT, Valérie De Boeck, PT, Anke Luyckx, OT, Daphne Kos, PhD, Jo Nijs, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 92, Issue 11, Pages (November 2011)
DOI: /j.apmr
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Overview of the study design (CFS patients, n=67; healthy subjects, n=66). Abbreviation: VAS, visual analog scale (here for fatigue, pain, and concentration difficulties).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2 Actical attachment at the nondominant wrist.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

4. Fig 3
Daily average ACs per minute during the recording period. Days 1 through 4 represent week days; days 5 and 6 are Saturday and Sunday, respectively.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions