Validation of custom wearable sensors to measure angle kinematics: A technical report

The objective of this study was to determine the accuracy of custom designed wearable sensors when compared to a robotic device to measure i) peak angles in a single plane (flexion/extension) and ii) the extent of error associated with speed of movement. Two experimental procedures were undertaken;...

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Main Authors: Walmsley, C., Xu, Weiyang, Ortega-Sanchez, Cesar, Campbell, Amity, Imms, C., Elliott, Catherine
Format: Journal Article
Language:English
Published: Springer Berlin Heidelberg 2019
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/76476
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author Walmsley, C.
Xu, Weiyang
Ortega-Sanchez, Cesar
Campbell, Amity
Imms, C.
Elliott, Catherine
author_facet Walmsley, C.
Xu, Weiyang
Ortega-Sanchez, Cesar
Campbell, Amity
Imms, C.
Elliott, Catherine
author_sort Walmsley, C.
building Curtin Institutional Repository
collection Online Access
description The objective of this study was to determine the accuracy of custom designed wearable sensors when compared to a robotic device to measure i) peak angles in a single plane (flexion/extension) and ii) the extent of error associated with speed of movement. Two experimental procedures were undertaken; i) one wearable sensor was mounted on the arm of a step motor that simulated wrist flexion/extension at the speed of 90°/s with the other wearable sensor static (flat surface); and ii) two wearable sensors were each mounted on a step motor which was programmed to move at two movement speeds 30°/s and 90°/s. When compared to pre-determined angles of the robotic device, the wearable sensors detected peak angles with mean error ranging from -0.95° to 0.11° when one wearable sensor was static and the other dynamic. When two wearable sensors were moving, movement at the higher speed (90°/s) had a mean error range of -2.63° to 0.54, and movement at the slower speed (30°/s) had a mean error range of -0.92° to 2.90°. The custom wearable sensors demonstrated the ability to measure peak angles comparable to the robotic device and demonstrated acceptable to reasonable error when tested at two movement speeds. The results warrant future in vivo testing.
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spelling curtin-20.500.11937-764762019-10-11T04:11:44Z Validation of custom wearable sensors to measure angle kinematics: A technical report Walmsley, C. Xu, Weiyang Ortega-Sanchez, Cesar Campbell, Amity Imms, C. Elliott, Catherine 1004 - Medical Biotechnology 1006 - Computer Hardware Wearable sensors Inertial Movement Units The objective of this study was to determine the accuracy of custom designed wearable sensors when compared to a robotic device to measure i) peak angles in a single plane (flexion/extension) and ii) the extent of error associated with speed of movement. Two experimental procedures were undertaken; i) one wearable sensor was mounted on the arm of a step motor that simulated wrist flexion/extension at the speed of 90°/s with the other wearable sensor static (flat surface); and ii) two wearable sensors were each mounted on a step motor which was programmed to move at two movement speeds 30°/s and 90°/s. When compared to pre-determined angles of the robotic device, the wearable sensors detected peak angles with mean error ranging from -0.95° to 0.11° when one wearable sensor was static and the other dynamic. When two wearable sensors were moving, movement at the higher speed (90°/s) had a mean error range of -2.63° to 0.54, and movement at the slower speed (30°/s) had a mean error range of -0.92° to 2.90°. The custom wearable sensors demonstrated the ability to measure peak angles comparable to the robotic device and demonstrated acceptable to reasonable error when tested at two movement speeds. The results warrant future in vivo testing. 2019 Journal Article http://hdl.handle.net/20.500.11937/76476 10.1007/s12553-019-00360-1 English Springer Berlin Heidelberg restricted
spellingShingle 1004 - Medical Biotechnology
1006 - Computer Hardware
Wearable sensors
Inertial Movement Units
Walmsley, C.
Xu, Weiyang
Ortega-Sanchez, Cesar
Campbell, Amity
Imms, C.
Elliott, Catherine
Validation of custom wearable sensors to measure angle kinematics: A technical report
title Validation of custom wearable sensors to measure angle kinematics: A technical report
title_full Validation of custom wearable sensors to measure angle kinematics: A technical report
title_fullStr Validation of custom wearable sensors to measure angle kinematics: A technical report
title_full_unstemmed Validation of custom wearable sensors to measure angle kinematics: A technical report
title_short Validation of custom wearable sensors to measure angle kinematics: A technical report
title_sort validation of custom wearable sensors to measure angle kinematics: a technical report
topic 1004 - Medical Biotechnology
1006 - Computer Hardware
Wearable sensors
Inertial Movement Units
url http://hdl.handle.net/20.500.11937/76476