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Sensor Insoles for Home-Monitoring Applications

While clinical gait analysis covers only a short time window of a patient’s performance in a controlled environment, embedded and wearable sensor systems are able to extend this time window and monitor gait in a more natural and uncontrolled environment during daily living activities. Such gait data can help to give insight into motor fluctuations of e.g. Parkinson´s disease or to estimate the risk of falling of the elderly. However, various challenges have to be address, to unobtrusively integrate such sensing mechanisms into a person’s everyday life:

  • Full integration to enable a non-stigmatizing data acquisition
  • Non-restrictive and easy to use
  • Completely wireless and wearable system
  • High biomechanical resolution
  • Long battery life

Insole based wearable sensor systems are able to fullfill those requirements by combining pressure and inertial sensor systems into a fully integrated design. Therefore, we developed a prototype sensor insole with a focus on home-monitoring applications. An overview of the current system is shown in the image below: