Linking Physiological Responses to Clinical Outcomes Following Cervical Spine Manipulation

The investigators aim to investigate the relationship between delivery kinetics, physiological responses and clinical outcomes following spinal manipulation. Neck pain participants will be randomised to attend two intervention sessions and will receive either a single cervical spine manipulation or mobilization (one set of central posterior-anterior mobilizations applied with either a crossed-thumb or pisiform contact) at the most painful level. Participants without neck pain will attend a single experimental session, where all measurement procedures will be the same as for neck pain participants with the exception that no treatment will be delivered.