Clinical assessment of the deep cervical flexor muscles: The Craniocervical Flexion Test

Background: The craniocervical flexion test (CCFT) is a clinical test of the anatomical action of the deep cervical flexor muscles. the longus capitis, and colli. It has evolved over 15 years as both a clinical and research tool and was devised in response to research indicating the importance of the deep cervical flexors in support of the cervical lordosis and motion segments and clinical observations of their impairment with neck pain