Assessment of shoulder range of motion using a wireless inertial motion capture device - a validation study

Rigoni, Michael, Gill, Stephen, Babazadeh, Sina, Elsewaisy, Osama, Gillies, Hugh, Nguyen, Nhan, Pathirana, Pubudu and Page, Richard 2019, Assessment of shoulder range of motion using a wireless inertial motion capture device - a validation study, Sensors, vol. 19, no. 8, doi: 10.3390/s19081781.

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Title Assessment of shoulder range of motion using a wireless inertial motion capture device - a validation study
Author(s) Rigoni, Michael
Gill, StephenORCID iD for Gill, Stephen
Babazadeh, Sina
Elsewaisy, Osama
Gillies, Hugh
Nguyen, Nhan
Pathirana, PubuduORCID iD for Pathirana, Pubudu
Page, RichardORCID iD for Page, Richard
Journal name Sensors
Volume number 19
Issue number 8
Article ID 1781
Total pages 8
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2019-04-13
ISSN 1424-8220
Keyword(s) IMU
inertial measurement unit
joint range of motion
Summary (1) Background: Measuring joint range of motion has traditionally occurred with a universal goniometer or expensive laboratory based kinematic analysis systems. Technological advances in wearable inertial measurement units (IMU) enables limb motion to be measured with a small portable electronic device. This paper aims to validate an IMU, the 'Biokin', for measuring shoulder range of motion in healthy adults; (2) Methods: Thirty participants completed four shoulder movements (forward flexion, abduction, and internal and external rotation) on each shoulder. Each movement was assessed with a goniometer and the IMU by two testers independently. The extent of agreement between each tester's goniometer and IMU measurements was assessed with intra-class correlation coefficients (ICC) and Bland-Altman 95% limits of agreement (LOA). Secondary analysis compared agreement between tester's goniometer or IMU measurements (inter-rater reliability) using ICC's and LOA; (3) Results: Goniometer and IMU measurements for all movements showed high levels of agreement when taken by the same tester; ICCs > 0.90 and LOAs < ±5 degrees. Inter-rater reliability was lower; ICCs ranged between 0.71 to 0.89 and LOAs were outside a prior defined acceptable LOAs (i.e., > ±5 degrees); (4) Conclusions: The current study provides preliminary evidence of the concurrent validity of the Biokin IMU for assessing shoulder movements, but only when a single tester took measurements. Further testing of the Biokin's psychometric properties is required before it can be confidently used in routine clinical practice and research settings.
Language eng
DOI 10.3390/s19081781
Field of Research 0301 Analytical Chemistry
0906 Electrical and Electronic Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, The Authors
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Document type: Journal Article
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School of Medicine
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