Reachable workspace in facioscapulohumeral muscular dystrophy (FSHD) by Kinect.
BACKGROUND
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.
University of California at Davis School of Medicine, Department of Physical Medicine and Rehabilitation, 4860 Y Street, Suite 3850, Sacramento, California, 95817, USA.
Jay J
JJ
Han
Gregorij
G
Kurillo
Richard T
RT
Abresch
Evan
E
de Bie
Alina
A
Nicorici
Ruzena
R
Bajcsy
D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D015331:Cohort Studies; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000502:physiology*; D018482:Muscle, Skeletal / Q000503:physiopathology; D020391:Muscular Dystrophy, Facioscapulohumeral / Q000503:physiopathology* / Q000534:rehabilitation*; D016059:Range of Motion, Articular / Q000502:physiology*; D058998:Remote Sensing Technology / Q000295:instrumentation* / Q000379:methods; D034941:Upper Extremity / Q000503:physiopathology*
FSHD; function; kinect reachable workspace; upper extremity