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Head-Mounted Systems for Neck Training, Assessment & Rehabilitation
Make movement visible. Make progress measurable
HeadX designs and manufactures two standalone head-mounted devices for physiotherapists, sports performance clinicians, and rehabilitation specialists.
The HeadX Kross projects a patented crosshair laser for real-time visual feedback during cervical proprioception training and vestibular rehabilitation.
The HeadX Duo combines the same crosshair laser with an integrated 9-axis inertial sensor, adding objective digital measurement of cervical range of motion, Joint Position Error values, and longitudinal session analytics.
Both devices are in active use across private practice, elite sport, and specialist concussion clinics.
What is cervical proprioception training?
Cervical proprioception is the body's ability to sense the position and movement of the head and neck in space, maintained by mechanoreceptors in the upper cervical spine working alongside the vestibular and visual systems.
Following concussion, whiplash, or chronic neck pain, this sense is frequently impaired — contributing to persistent symptoms and elevated re-injury risk.
Joint Position Error testing, in which a patient moves to a target position and attempts to return to neutral, is the standard clinical measure of proprioceptive accuracy.
A repositioning error of 4.5° or greater is considered clinically significant.
What is cervical range of motion measurement?
Cervical range of motion describes the extent of neck movement across flexion, extension, lateral flexion, and rotation.
Clinical reference ranges for healthy adults are approximately 50° flexion, 60° extension, 45° lateral flexion, and 70° rotation. ROM is assessed routinely in patients with neck pain, whiplash, and concussion as both a diagnostic measure and a marker of rehabilitation progress.
The HeadX Duo captures ROM digitally across all planes using an integrated 9-axis inertial sensor, enabling objective longitudinal tracking across sessions.
What is cervical motor control training?
Cervical motor control is the coordinated neuromuscular activity that regulates head and neck movement and stabilises the cervical spine during dynamic tasks.
Following injury, motor control is frequently disrupted — patients may show altered movement patterns, reduced deep muscle activation, and impaired gaze stability that persists long after pain resolves.
Training progresses from precision positioning tasks through to dynamic and dual-task conditions.
Real-time laser feedback, as provided by the HeadX Kross, is an established method for improving motor learning accuracy during cervical retraining.
