An Electromagnetic Cervical Range-of-Motion System and its Sensitivity to Environmental Metal

Michael J. Schendel, Robert Patterson, Jack Allison

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A three-dimensional cervical spine range-of-motion system was developed using an electromagnetic tracking system for data collection and a personal computer for analysis and graphic representation of the data. A test was designed to investigate the sensitivity of the electromagnetic device to the proximity of metal. It was found that position errors could be kept below 0.5 cm, and rotation errors could be kept below 1.3°, if all metal was at least 33 cm from the source and sensor. The sensitivity of the system to metal should not cause serious problems in the typical clinical environment if simple precautions are taken.

Original languageEnglish (US)
Pages (from-to)27-32
Number of pages6
JournalAssistive Technology
Volume2
Issue number1
DOIs
StatePublished - Mar 31 1990

Keywords

  • Accuracy
  • Computerized range of motion
  • Neck range of motion
  • Quantification of human performance

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