Comparison of muscular fatigue and tone of neck according to craniocervical flexion exercise and suboccipital relaxation in cervicogenic headache patients.

The study had only 30 patients, 10 in each group, so the result is small. The supplied text does not state whether participants or assessors were blinded. All groups received hot pack and low frequency therapy, so the effect of craniocervical flexion exercise or suboccipital relaxation alone cannot be separated. The headache table gives 4-week VAS values of 393.7, 369.7 and 383.6 mm, which are outside the stated 0 to 100 mm scale, making the headache result hard to interpret. The paper did not name a primary outcome, and between-group differences were limited to left SCM fatigue and headache intensity. Participants were young adults, with ages listed as 23.6, 24.4 and 25.2 years and mostly women, so it may not apply to older or more mixed headache patients.

No funding or conflict of interest statement is included in the supplied text.

Do not conclude that craniocervical flexion exercise or suboccipital relaxation alone reduced headache or neck muscle fatigue. All groups received hot pack and low frequency therapy, and the headache table has 4-week values above the stated 0 to 100 mm scale.