“…In a pilot study, a protocol of external QG lasting 3 weeks improved in FMS patients tender points, pain, disability and depression, with the results maintained at a 3-month follow-up (Chen et al, 2006). In a subsequent study, FMS patients treated with a 7 weeks protocol of QG significantly improved in pain, psychological health and distress in respect to a control group, with the data confirmed after a 4 months long period (Haak et al, 2008). However, when tested in children affected with FMS, QG was as effective as aerobic exercise in improving anaerobic function, tender point count, pain, and symptom severity, but did not ameliorate physical function, functional capacity, quality of life, and fatigue, that were improved only in the group performing aerobic exercises (Stephens et al, 2008).…”