Journal
GAIT & POSTURE
Volume 27, Issue 3, Pages 368-375Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.gaitpost.2007.05.005
Keywords
outcome evaluation; accelerometers and gyroscopes; upper-limbs usage; ambulatory system
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A new method of evaluation for functional assessment of the shoulder during daily activity is presented. An ambulatory system using inertial sensors attached on the humerus was used to differentiate a dominant from a non-dominant shoulder. The method was tested on 31 healthy volunteers with no shoulder pathology while carrying the system during 8 h of their daily life. Shoulder mobility based on the angular velocities and the accelerations of the humerus were calculated and compared every 5 s for both sides. Our data showed that the dominant arm of the able bodied participants was more active than the non-dominant arm for standing (+20% for the right handed, + 15% for the left handed) and sitting (+24% for the right handed, +32% for the left handed) posture, while for the walking periods the use of the right and left side was almost identical. The proposed method could be used to objectively quantify upper-limb usage during activities of daily living in various shoulder disorders. (C) 2007 Elsevier B.V. All rights reserved.
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