System identification of human ankle dynamics: intersubject variability and intrasubject reliability

R. E. Kearney, P. L. Weiss, R. Morier

Research output: Contribution to journalArticlepeer-review

Abstract

Intersubject variability and intrasubject reliability of quantitative measures of normal human ankle mechanics were examined in fifteen young adults. Each subject was examined on two occasions to characterize passive joint dynamics, in terms of the position-stiffness relation, and active joint dynamics, in terms of the torque-stiffness relation. Quantitative, objective measures of joint properties corresponding to those in clinical use were also made for comparison purposes. Results demonstrated that measures of passive and active joint dynamics generally had an intrasubject reliability which was as good as or better than most clinical measures. Intersubject variability was somewhat larger as is the case for the clinical measures.

Original languageEnglish
Pages (from-to)205-217
Number of pages13
JournalClinical Biomechanics
Volume5
Issue number4
DOIs
StatePublished - Nov 1990
Externally publishedYes

Bibliographical note

Funding Information:
Supported by the Medical Research Council of Canada and the Institut de recherche en Sante et en securite du travail du Quebec.

Keywords

  • System identification techniques
  • ankle joint mechanics
  • intersubject variability
  • reliability

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine

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