Reachable workspace reflects dynamometer-measured upper extremity strength in facioscapulohumeral muscular dystrophy

Jay J. Han, Evan De Bie, Alina Nicorici, Richard T. Abresch, Ruzena Bajcsy, Gregorij Kurillo

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Introduction: It is not known whether a reduction in reachable workspace closely reflects loss of upper extremity strength in facioscapulohumeral muscular dystrophy (FSHD). In this study we aimed to determine the relationship between reachable workspace and quantitative upper extremity strength measures. Methods: Maximal voluntary isometric contraction (MVIC) testing of bilateral elbow flexion and shoulder abduction by hand-held dynamometry was performed on 26 FSHD and 27 control subjects. In addition, Kinect sensor-based 3D reachable workspace relative surface areas (RSAs) were obtained. Loading (500-g weight) effects on reachable workspace were also evaluated. Results: Quantitative upper extremity strength (MVIC of elbow flexion and shoulder abduction) correlated with Kinect-acquired reachable workspace RSA (R=0.477 for FSHD, P=0.0003; R=0.675 for the combined study cohort, P

Original languageEnglish (US)
Pages (from-to)948-955
Number of pages8
JournalMuscle and Nerve
Volume52
Issue number6
DOIs
StatePublished - Dec 1 2015

Keywords

  • Dynamometry
  • FSHD
  • Kinect
  • Reachable workspace
  • Upper extremity

ASJC Scopus subject areas

  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)
  • Physiology

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