In-shoe multisensory data acquisition system

Jr Morley, E. J. Richter, J. W. Klaesner, K. S. Maluf, M. J. Mueller

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


Patients with diabetes and peripheral neuropathy are susceptible to unnoticed trauma on the foot that can cause skin breakdown. We have designed an electronic system in a shoe that monitors temperature, pressure, and humidity, storing the data in a battery-powered device for later uploading to a host computer for data analysis. The pressure sensors are located at the heel, and under three metatarsal heads. Temperature sensors are located under the medial metatarsal head and under the heel. The humidity sensor is located in the toe of the shoe. Correlations of data from pressure sensors with known values were high (r > 0.85), even after extended use. Although data currently are being collected for descriptive purposes, the design potentially can be used to provide feedback to patients.

Original languageEnglish
Pages (from-to)815-819
Number of pages5
JournalIEEE Transactions on Biomedical Engineering
Issue number7
StatePublished - 2001


  • Diabetes mellitus
  • Insole shoe monitoring
  • Orthotic device
  • Sensory impairment

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