Neck condition: a) neck extension; b) normal; c) neck flexion [4

Neck condition: a) neck extension; b) normal; c) neck flexion [4].

Cervical collars – why do they help some people and not others? – Caring Medical Florida

Axial Neck Pain, Radiculopathy, and Myelopathy: Recognition and Treatment

Cervicogenic Headache: Cause, Symptoms, Treatment, Exercise

Cervical Flexion And Extension - Anatomy, ROM, Movement

Effectiveness of manual therapy, computerised mobilisation plus home exercise, and home exercise only in treating work-related neck pain: study protocol for a randomised controlled trial, BMC Musculoskeletal Disorders

Forward head posture symptoms and complications – Caring Medical Florida

Forward head posture symptoms and complications

Flexion and Extension Cervical Spine Radiography - wikiRadiography

Cervical Collar - Physiopedia

Frontiers Cervical Spine Hyperextension and Altered Posturo-Respiratory Coupling in Patients With Obstructive Sleep Apnea Syndrome