Reachable workspace in facioscapulohumeral muscular dystrophy (FSHD) by kinect

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

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Introduction: A depth-ranging sensor (Kinect) based upper extremity motion analysis system was applied to determine the spectrum of reachable workspace encountered in facioscapulohumeral muscular dystrophy (FSHD). Methods: Reachable workspaces were obtained from 22 individuals with FSHD and 24 age- and height-matched healthy controls. To allow comparison, total and quadrant reachable workspace relative surface areas (RSAs) were obtained by normalizing the acquired reachable workspace by each individual's arm length. Results: Significantly contracted reachable workspace and reduced RSAs were noted for the FSHD cohort compared with controls (0.473±0.188 vs. 0.747±0.082; P<0.0001). With worsening upper extremity function as categorized by the FSHD evaluation subscale II+III, the upper quadrant RSAs decreased progressively, while the lower quadrant RSAs were relatively preserved. There were no side-to-side differences in reachable workspace based on hand-dominance. Conclusions: This study demonstrates the feasibility and potential of using an innovative Kinect-based reachable workspace outcome measure in FSHD.

Original languageEnglish (US)
Pages (from-to)168-175
Number of pages8
JournalMuscle and Nerve
Issue number2
StatePublished - Feb 1 2015


  • FSHD
  • Function
  • Kinect reachable workspace
  • Upper extremity

ASJC Scopus subject areas

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


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