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A pilot study of the responsiveness of wireless motion analysis in facioscapulohumeral muscular dystrophy
Author(s) -
Statland Jeffrey M.,
Karanevich Alex,
Bruetsch Adam,
Huisinga Jessie
Publication year - 2019
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.26681
Subject(s) - facioscapulohumeral muscular dystrophy , physical medicine and rehabilitation , stride , trunk , range of motion , sagittal plane , medicine , duchenne muscular dystrophy , muscular dystrophy , motion analysis , physical therapy , computer science , biology , anatomy , ecology , computer vision
We determined whether instrumenting timed functional tasks with wireless inertial motion sensors were responsive to facioscapulohumeral muscular dystrophy (FSHD) progression and movement pattern changes. Methods Ten individuals who were clinically affected with genetically confirmed FSHD, mean age 54 years (range 42–65), performed an instrumented timed up and go (iTUG) trial at each visit, wearing six wireless inertial sensors. We determined the estimated average monthly slope of progression and 12‐month change for temporal and spatial motion variables using a linear mixed effects model. Results For an average of 20.6 months (range 6.1–34.5), the iTUG duration stayed constant, whereas stride length, stride velocity, and trunk sagittal range of motion changed, indicating poorer performance. Arm swing changed in a compensatory direction toward the normative mean. Discussion This study provides preliminary evidence that iTUG motion variables could be sensitive to progression in FSHD, but this requires validation in a larger study.