Immediately after the last treatment, the number of headache-free periods and of headache-free days was higher in the relaxation group as compared with the acupuncture group. There were no other significant differences between the groups at any time point.
The researchers concluded that relaxation training induced the most pronounced effects directly after the treatment period, as compared with acupuncture and physical training.
Citation: Söderberg E1, Carlsson J, Stener-Victorin E.Chronic tension-type headache treated with acupuncture, physical training and relaxation training. Between-group differences. Cephalalgia. 2006 Nov;26 (11):pp. 1320-9.
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