Objective: To study the long-term effects on symptoms and physical function of a 4-week rehabilitation programme for patients with fibromyalgia, and to determine whether there are any differences if this programme is applied in a warm or cold climate.
Methods: A total of 132 patients with fibromyalgia were randomized to a rehabilitation programme in a warm or cold climate, or to a control group without intervention. Assessments were performed before and after intervention, and after 3 and 12 months.