Comparison of model-predicted and measured moment arms for the rotator cuff muscles

Christopher J Gatti, Clark R Dickerson, Edward K Chadwick, Amy G Mell, Richard E Hughes

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Background: The ability of mathematical models of the shoulder to accurately replicate physiological muscle moment arms is unknown. The purpose of this study was to compare model-predicted and experimentally measured moment arms for the rotator cuff muscles during arm elevation.

Methods: Moment arms obtained from six mathematical models and seven experimental studies were compared for the supraspinatus, infraspinatus, teres minor, and subscapularis for elevation in the scapular plane.

Results: All of the included models generated moment arms that generally fell within the range of experimentally measured data.

Interpretation: The quantitative agreement between model-predicted and experimentally measured moment arms supports the use of the included models for biomechanical shoulder analyses.
Original languageEnglish
Pages (from-to)639-644
Number of pages6
JournalClinical Biomechanics
Volume22
Issue number6
DOIs
Publication statusPublished - 2007

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