title: Avoidance behavior towards physical activity in chronic fatigue syndrome and fibromyalgia: the fear for post-exertional malaise.
authors.affiliation: Pain in Motion Research Group, Departments of Human Physiology and Rehabilitation Sciences, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, Brussel, Belgium, Jo.Nijs@vub.ac.be.
authors.forename: Jo
authors.initials: J
authors.lastname: Nijs
authors.forename: Mari
authors.initials: M
authors.lastname: Lundberg
mesh_terms: D001294:Attitude to Health; D015928:Cognitive Behavioral Therapy; D015444:Exercise; D005081:Exercise Therapy / Q000009:adverse effects; D017079:Exercise Tolerance; D015673:Fatigue Syndrome, Chronic / Q000523:psychology*; D005239:Fear; D005356:Fibromyalgia / Q000523:psychology*; D015438:Health Behavior; D006801:Humans; D009043:Motor Activity