Wireless instrumented crutches for force and tilt monitoring in lower limb rehabilitation

  • Sardini E
  • Serpelloni M
  • Lancini M
 et al. 
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Abstract

This paper describes synthetically the design, development and characterization of two wireless instrumented crutches for monitoring lower-limb rehabilitation activities. These sensorized crutches allow monitoring axial and shear forces and tilt angles in real time. Each crutch is composed of three strain-gauge bridges measuring axial and shear forces, a conditioning and transmission circuit, a tri-axial accelerometer and a battery power management circuit. The data are transmitted wirelessly via Bluetooth to a remote computer, no further readout unit is necessary. The instrumented crutches have been tested and characterized using an ad-hoc experimental setup and they have been used for the first tests on one subject. This paper shows, in a concise manner, the description of the system and the first experimental results on one crutch obtained in laboratory.

Author-supplied keywords

  • Accelerometer
  • Force monitoring
  • Gait analysis
  • Limb
  • Rehabilitation
  • Strain gauges
  • Tilt monitoring
  • Wireless sensor

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