Why we rely on IMU sensors – high-end sensor technology for precise gait analysis

IMU sensors based analysis for dogs: Not all motion sensors are the same. In gait analysis, the quality of the sensor technology determines the validity of the data. LupoGait therefore relies on the professional IMU technology. In this article, we show what makes IMU so special and why veterinarians benefit from it.

Not all sensors are the same

Gait analysis thrives on data, but this data is only as good as the sensors that capture it. This is a particular challenge in veterinary medicine: dogs move dynamically, often unpredictably and are rarely exactly reproducible. Added to this are short measurement windows, asymmetrical gait patterns and external influences such as changing environments. All of this places high demands on the technical precision of the measuring devices.

Conventional IMUs, such as those installed in consumer wearables, quickly reach their limits here: although they provide raw data, this is often noisy, unstable or difficult to reproduce. Such systems are not sufficient for reliable orthopaedic diagnostics.

This is why LupoGait relies on professional IMUs technology, a system that has proven itself in the most demanding applications worldwide. Our sensors are not only considered the gold standard in human motion analysis, but also in areas such as aviation, robotics and clinical rehabilitation research. For veterinary medicine, this means maximum precision, stability and informative value – even under difficult practical conditions.

Xsens IMU für Hund 4Dvets

Our inertial sensors combine several measuring elements in one compact module:

  • Accelerometer (linear motion)
  • Magnetometer (direction/orientation in space)
  • Gyroscope (angular velocity)

Through sensor fusion, this data is calculated in real time to create an exact movement profile. Advantages over conventional IMUs:

  • Low noise – for clear, interpretable data
  • Stable reference axis – important for rotations (e.g. in pelvic kinematics)
  • Low drift – even with longer measurement durations
  • High measurement rate – ideal for fast movement phases
  • These properties are crucial for detecting even subtle gait deviations, which are important for the early detection of orthopaedic diseases.

Why LupoGait is working with IMU sensors

When developing LupoGait, it was clear that if we wanted to detect subtle gait deviations in dogs, we had to use the best IMU technology available.

  • Advantages for veterinary practice:
  • Reproducible measurement results – reliable even with repeated examinations
  • Precise joint angle detection – for progress checks and therapy comparisons
  • Reliable detection of asymmetries – even with compensated gait patterns
  • High data security – thanks to validated hardware with medical research experience

The difference to simpler IMUs can be seen in the accuracy and usability of the data. Where other systems struggle with noise or drift, our IMU sensors delivers clear movement information.

Conclusion: Precision you can rely on

In modern gait analysis, every detail counts. Especially when it comes to early detection, subtle deviations or the success of therapy, the data has to be right.

Learn more:

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