Are manual therapies effective at reducing chronic tension headache frequency in adults?

Abstract

MAYBE. Among patients with chronic tension headaches, manual therapies may reduce headache frequency more than sham manual therapy, usual care, or exercise treatments-by 1.5 to 4.2 headaches or days with headache per week (strength of recommendation, B; preponderance of evidence from primarily small, heterogeneous randomized controlled trials [RCTs]).