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HeadX Duo

HeadX Duo

Digital Goniometer & Laser

Regular price £650.00
Sale price £650.00
Regular price Save Sold out
ColourMidnight Blue
BundleDuo Only

Assessment & Rehabilitation

Digital goniometer for objective cervical Range of Motion and Joint Position Sense.

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Description

HeadX Duo is the instrumented evolution of the HeadX system, combining the established head-mounted crosshair laser with integrated multi-axis inertial sensing to support objective assessment, rehabilitation, and performance monitoring of head and neck control.

Built on the same visual feedback principles that underpin HeadX Kross, HeadX Duo adds the ability to measure and record movement in real time. This enables clinicians, practitioners, and performance specialists to retain the simplicity and immediacy of laser-guided training, while accessing quantitative data to support deeper analysis, documentation, and progression tracking.

Visual precision, enhanced with data

At the core of HeadX Duo is the familiar crosshair laser, providing intuitive visual feedback for cervical proprioception, gaze control, and sensorimotor training. This remains central to session delivery, ensuring continuity with established HeadX exercise programmes and clinical workflows.

Alongside this, the integrated inertial measurement unit captures head movement across multiple axes, enabling objective metrics such as range of motion, movement velocity, control, repeatability, and symmetry to be recorded during live use. Data collection occurs passively in the background, without disrupting the exercise experience.

Designed for clinical and performance environments

HeadX Duo connects via Bluetooth to dedicated iOS and Android applications, allowing real-time visualisation of movement data during sessions. This supports guided assessment, structured rehabilitation, and performance monitoring at the point of care.

For advanced use cases, captured data can be streamed or exported for offline analysis, longitudinal tracking, research, or reporting. All data is stored locally on the host device, ensuring practitioners retain full control over their information.

A complementary choice within the HeadX system

HeadX Duo is designed to sit alongside HeadX Kross, not replace it. While HeadX Kross remains an effective and accessible solution for laser-guided training and rehabilitation, HeadX Duo offers an additional layer of measurement for users who require objective data to support decision making, research, or high-performance applications.

This modular approach allows clinics, teams, and organisations to adopt the level of capability that best fits their needs, from visual feedback alone through to fully instrumented assessment and monitoring.

Key features

  • Head-mounted crosshair laser for intuitive visual feedback
  • Integrated multi-axis inertial sensing for objective movement capture
  • Real-time data visualisation via iOS and Android applications
  • Local data storage with export options for analysis and reporting
  • Seamless compatibility with existing HeadX exercises and workflows

HeadX Duo extends the HeadX system with objective insight, while preserving the simplicity, clarity, and clinical focus that define HeadX.

Technical Details

Head-mounted crosshair laser providing continuous visual feedback during raining

Integrated multi-axis inertial measurement unit for optional head movement capture

Three-dimensional tracking of angular movement during live use

Bluetooth wireless connection to compatible iOS and Android applications

Real-time data visualisation with local data storage on the host device

Lightweight, adjustable headband designed for repeated clinical and performance use

Rechargeable internal battery with simple, single-button operation

Why Choose HeadX Duo?

HeadX Duo replaces subjective assessment with objective, data-driven insight, combining real-time visual guidance with digital movement tracking to make every session precise and measurable.

Developed with clinicians, it integrates laser-based targeting and intelligent sensing to support accuracy, engagement, and accelerated recovery across a wide range of applications.

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HeadX Duo
Midnight Blue /
Duo Only
Regular price £650.00
Regular price Sale price £650.00
Selected Variant Image
HeadX Duo
Midnight Blue /
Duo Only
Regular price £650.00
Regular price Sale price £650.00

Want to see more? Book a 15 minute demo

Using HeadX Duo for Cervical Range of Motion Assessment

What it measures: The total angular range of active cervical movement across all planes, recorded in degrees. Because Duo uses an integrated IMU, no inclinometer, goniometer, or external reference target is required.

Setup: Seat the patient in a chair without a headrest. Fit the headset firmly around the mid-cranium. Open the app, go to Assessments > Range of Motion.

Set neutral: Ask the patient to adopt their natural upright head position.

Test: The patient moves actively to their comfortable end range in each direction. . Test all relevant planes: flexion, extension, left and right rotation, and left and right lateral flexion.

Results: ROM is displayed in degrees for each direction. Results can be used for longitudinal tracking across reassessment appointments.

After the session: Power down, wipe the headband with a clinical disinfectant, and store in the carry case.

Using HeadX Duo for Cervical Joint Position Sense Testing

What it measures: A patient's ability to accurately relocate their head to a neutral position after active movement — an objective measure of cervical proprioception.

Because Duo uses an integrated IMU, no target wall or fixed testing distance is required. Target is shown in the video to demonstrate accuracy of performance.

Setup: Seat the patient in a chair without a headrest. Fit the headset firmly around the mid-cranium. Open the app, go to Assessments > Joint Position Sense, and pair the device.

Set neutral: Ask the patient to adopt their natural upright head position.

Test: With eyes closed, the patient moves to end range then attempts to return to neutral. The clinician taps Record to capture the angular relocation error. Repeat for a minimum of three trials per direction across all relevant planes: flexion, extension, left and right rotation, and left and right lateral flexion. Manually guiding return to centre on each trial.

Results: Mean relocation error is shown in degrees. Values below 4.5° are generally within normal limits (orange and green zones); repeated errors above this suggest impaired proprioception. Results are saved to the patient profile for longitudinal tracking.

After the session: Power down, wipe the headband with a clinical disinfectant, and store in the carry case.

Data driven insights

Why Patients and Clinicians Trust Duo

  • Cervical ROM Assessment

    Accurate active range of motion assessment, helping patients refine movement control while enabling clinicians to observe quality, symmetry, and limits of cervical motion.

  • Joint Position Sense

    Digital assessment of cervical joint position sense, supporting improved movement accuracy, confidence, and sensorimotor control.

  • Laser Feedback

    A crosshair laser provides immediate external feedback during head movement, making subtle deviations visible and supporting precise control across sagittal, frontal, and transverse planes.

FAQ

What is the HeadX Duo?

The HeadX Duo is a head-mounted cervical assessment and rehabilitation device that combines a patented crosshair laser with an integrated nine-axis inertial measurement unit (IMU). It measures and records head and neck movement in real time, capturing range of motion, movement velocity, symmetry, and joint position sense across multiple axes. Data is transmitted via Bluetooth to dedicated iOS and Android applications.

How does the HeadX Duo differ from the HeadX Kross?

The HeadX Kross provides real-time visual feedback through a crosshair laser and is used for clinical assessment and exercise delivery without data capture. The HeadX Duo retains the same crosshair laser and adds objective digital measurement: the integrated IMU captures angular movement data during live use, which is recorded and stored in the companion app. The Duo is designed for practitioners who require quantified, longitudinal outcome data alongside the visual feedback provided by the laser.

What does the HeadX Duo measure?

The HeadX Duo measures cervical range of motion (CROM) across flexion, extension, left and right rotation, and lateral flexion. It also supports Joint Position Sense (JPS) assessment, capturing the angular error between a target position and the patient's repositioning accuracy. Movement velocity, control, repeatability, and left-right symmetry can also be derived from the recorded data.

What clinical assessments can be performed with the HeadX Duo?

The HeadX Duo supports Cervical Range of Motion (CROM) assessment and Joint Position Sense (JPS) testing as primary clinical protocols. It is used in concussion assessment, post-whiplash monitoring, chronic neck pain evaluation, vestibular rehabilitation, and high-performance sports screening.

How is HeadX Duo data accessed and stored?

Data is recorded in real time via the HeadX Duo app on iOS or Android. All session data is stored locally on the clinician's device, ensuring full practitioner control over patient information without dependency on third-party cloud services. Data can be exported for offline analysis, longitudinal tracking, or research reporting.

Who is the HeadX Duo designed for?

The HeadX Duo is designed for physiotherapists, sports medicine clinicians, neurological rehabilitation specialists, and performance practitioners who require objective, repeatable cervical movement data to support clinical decision-making, outcome monitoring, or research.