When Dizziness and Neck Dysfunction Coexist: What New Research Shows

Dizziness is not always explained by a single system. Vestibular, visual, cervical, neurological and psychological factors can overlap, and the clinical challenge is to determine which findings are relevant for the individual patient.

A 2026 study by Mangia and colleagues investigated the cervical component in people with unilateral peripheral vestibulopathy. Sixty-one patients with dizziness completed clinical questionnaires, the Dizziness Handicap Inventory and Neck Disability Index, followed by cervical joint position error testing and static posturography. Twenty-four people without vestibular or neck complaints formed a control group.

What did the researchers find?

The dizziness group performed worse on the cervical joint position error test than controls. Within the patient group, cervical proprioception showed a modest correlation with dizziness-related handicap. Patients who also reported cervical symptoms performed particularly poorly in selected balance conditions and had higher Dizziness Handicap Inventory scores.

Among those with cervical complaints, neck-related and dizziness-related disability also showed a moderate correlation.

Why this is clinically relevant

The findings support a broader assessment when dizziness and neck symptoms coexist. A confirmed peripheral vestibular diagnosis does not mean that cervical function is irrelevant. Equally, finding impaired cervical joint position sense does not prove that the neck is the sole cause of dizziness.

The cervical spine provides dense proprioceptive information about the orientation of the head relative to the trunk. This input is integrated with vestibular and visual information. A mismatch or loss of precision across these systems may contribute to impaired orientation or balance, but the mechanism cannot be established from this study alone.

What the study cannot tell us

The design was cross-sectional, so it captured associations at one point in time. It cannot establish whether cervical dysfunction contributed to dizziness, developed because patients avoided head movement, or reflected another shared factor. The control group was also smaller than the patient group.

Cervical joint position error should therefore be interpreted as one finding within a differential assessment, not as a diagnostic test for cervical dizziness.

A practical assessment framework

For patients with peripheral vestibular dysfunction and cervical complaints, clinicians may consider documenting:

• the relationship between dizziness and neck or head movement;
• active cervical range of motion, pain and movement quality;
• head repositioning accuracy across directions and repeated trials;
• gaze stability and visual motion sensitivity;
• balance under altered visual and somatosensory conditions; and
• the effect of combined head, eye and postural tasks.

The pattern matters. A patient with restricted rotation, variable repositioning error and symptoms during head movement may require a different plan from someone whose principal limitation is gaze instability without cervical pain.

Where HeadX Kross and Duo may fit

HeadX Kross can provide clear visual targets for cervical proprioception assessment and rehabilitation. HeadX Duo adds objective measurement of movement and repositioning performance. Neither identifies the cause of dizziness. Their role is to help clinicians structure tasks, quantify selected impairments and monitor response over time.

The most defensible use is within a multimodal examination, particularly when the patient has both vestibular and cervical features.

Clinical takeaway

This research supports looking beyond diagnostic labels. In peripheral vestibulopathy, cervical symptoms and impaired head repositioning may coexist with poorer balance and greater perceived handicap. That makes cervical sensorimotor assessment relevant, but not diagnostic on its own.

Source: Mangia et al. Objective and subjective investigation of the cervical component in patients with peripheral vestibulopathy. Journal of Vestibular Research, 2026.

This article is for professional education and does not replace differential diagnosis or individual clinical assessment.