Scientific article
Open access

Assessment of an electronic goniometer designed to measure equinus contracture

Published inJournal of rehabilitation research and development, vol. 40, no. 3, p. 235-239
Publication date2003

To achieve more objective and repeatable measurements of equinus contracture, we developed the equinometer, a device that allows the measurement of ankle range of motion under controlled torque conditions. This study assessed its accuracy across different subjects and examiners. Two examiners used the equinometer to measure the angle of ankle dorsiflexion at 15 N x m torque on five subjects. Accounting for variation in measurements because of subjects, examiners, and placement of device, we used linear mixed-effects models. Accounting for the variation because of subject, different placements of the equinometer within each subject and the adjustment for the effects of examiner and trial sequence, the standard deviation was 0.94 degrees, 95% confidence interval (0.79 degrees, 1.13 degrees). An upper standard deviation of 1.36 degrees is felt to be acceptable for clinical investigation.

  • Ankle Joint
  • Cohort Studies
  • Confidence Intervals
  • Equinus Deformity/diagnosis
  • Equipment Design
  • Female
  • Humans
  • Male
  • Orthopedic Equipment
  • Probability
  • Range of Motion, Articular/physiology
  • Reference Values
  • Sensitivity and Specificity
Citation (ISO format)
ASSAL, Mathieu et al. Assessment of an electronic goniometer designed to measure equinus contracture. In: Journal of rehabilitation research and development, 2003, vol. 40, n° 3, p. 235–239.
Main files (1)
Article (Published version)
ISSN of the journal0748-7711

Technical informations

Creation11/26/2014 12:38:00 PM
First validation11/26/2014 12:38:00 PM
Update time03/14/2023 10:31:16 PM
Status update03/14/2023 10:31:16 PM
Last indexation01/16/2024 3:24:16 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack