CHALLENGE

Gait and motion analysis on elite athletes and patients

As part of its researches on motion in the sports and clinical fields, the public research institute INRIA needed a validation phase on the field. However, classical instrumentation systems didn’t allow to experiment in the real conditions required by the research subjects.

Therefore INRIA selected the HIKOB wireless data acquistion system: robust and miniaturised, it allows to be as close to the field reality as possible.

In collaboration with the FFS (French Federation of Ski), INRIA has been able to equip skiers with HIKOB FOX acquisition nodes in real conditions of practice. The collected data bring to INRIA’s researchers an extended knowledge on the techniques and motion patterns developed by elite athletes.

Moreover using the same acquisition systems in both sport and clinical domains accelerate drastically the research cycle for example. The analysis of the running strides of an athlete brings interesting information on the motion patterns of a patient developing the Parkinson desease.

Christine AZEVEDO
Research officer

HIKOB technology allows us to combine within a single network both inertial measurement units and other type of instruments while having a fully synchronized system.

We have been able to capture motion data in the most real conditions for sports and clinical applications. The new knowledge acquired and the reliability of data enabled us to make a bridge between two different research fields and to consider new research directions.

SOLUTION

Wireless data acquisition systems

  • 4 HIKOB FOX acquisition nodes for a patient
  • 5 HIKOB FOX acquisition nodes for an athlete
  • Each HIKOB FOX nodes includes a 9° of freedom inertial measurement unit:
    • 3D accelerometer
    • 3D gyrometer
    • 3D magnetometer
  • 1 synchronisation gateway
  • Deployment architecture: synchronized datalogging acquisition
  • Data acquisition is synchronized for all units in the network thanks to the radio synchronization gateway (ISM bandwith 2,4GHz).
BENEFITS

To accelerate the research cycle

  • Synchronized field data acquisition on a complex and moving subject
  • Ultra low power systems, less cumbersome, easier to install and configure
  • Reliable, miniaturized and robust equipment to be placed on a patient or an athlete
  • Field data acquisition in real conditions (not in the lab)
  • New knowledge on various motions patterns in the sports and clinical fields to develop adapted assistance and rehab systems
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