Combined effect of extracorporeal shock wave therapy and manual therapy on the active trigger point of the sternocleidomastoid muscle in cervicogenic headache and application of shear wave elastography

INTERVENTION: Routine manual therapy group:massage;Trigger point manual therapy group:given the trigger point muscle stretching, rubbing and flicking;Trigger point combined treatment group:extracorporeal shock wave + manual therapy; CONDITION: cervicogenic headache PRIMARY OUTCOME: Visual analog scale;cervical range of motion;Stiffness of Sternocleidomastoid Muscle; INCLUSION CRITERIA: 1. It conforms to the diagnostic criteria newly revised by the International Headache Society (IHS) in 2004. At the same time, according to the pain grading method (2004) issued by the International Headache Association (IHS), it conforms to the patients with cervical headache who are classified as Grade II and Grade III; 2. The diagnosis of trigger point activated by sternocleidomastoid muscle conforms to the standard formulated by Simons et al. in 1999, and there is only one trigger point activated by bilateral sternocleidomastoid muscle; 3. Aged 18‐45 years, regardless of gender; 4. Voluntary participation and signing of informed consent.