@article{Shaheen:2011,
author = {Shaheen, AF and Alexander, CM and Bull, AM},
journal = {J Biomech.},
pages = {1410--1413},
title = {Effects of attachment position and shoulder orientation during calibration on the accuracy of the acromial tracker},
url = {http://hdl.handle.net/10044/1/9472},
volume = {44},
year = {2011}
}

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TY  - JOUR
AB  - The acromial tracker is used to measure scapular rotations during dynamic movements. The method has low accuracy in high elevations and is sensitive to its attachment location on the acromion. The aim of this study was to investigate the effect of the attachment position and shoulder orientation during calibration on the tracker accuracy. The tracker was attached to one of three positions: near the anterior edge of the acromion process, just above the acromial angle and the meeting point between the acromion and the scapular spine. The scapula locator was used to track the scapula during bilateral abduction simultaneously. The locator was used to calibrate the tracker at: no abduction, 30 degrees , 60 degrees , 90 degrees and 120 degrees humerothoracic abduction. ANOVA tests compared RMS errors for different attachment positions and calibration angles. The results showed that attaching the device at the meeting point between the acromion and the scapular spine gave the smallest errors and it was best to calibrate the device at 60 degrees for elevations </=90 degrees , at 120 degrees for elevations >90 degrees and at 90 degrees or 120 degrees for the full range of abduction. The accuracy of the tracker is significantly improved if attached appropriately and calibrated for the range of movement being measured
AU  - Shaheen,AF
AU  - Alexander,CM
AU  - Bull,AM
EP  - 1413
PY  - 2011///
SP  - 1410
TI  - Effects of attachment position and shoulder orientation during calibration on the accuracy of the acromial tracker
T2  - J Biomech.
UR  - http://hdl.handle.net/10044/1/9472
VL  - 44
ER  - 

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