Document Detail


Assessment of repeatability of a wireless, inertial sensor-based lameness evaluation system for horses.
MedLine Citation:
PMID:  21879972     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective-To determine repeatability of a wireless, inertial sensor-based lameness evaluation system in horses. Animals-236 horses. Procedures-Horses were from 2 to 29 years of age and of various breeds and lameness disposition. All horses were instrumented with a wireless, inertial sensor-based motion analysis system on the head (accelerometer), pelvis (midline croup region [accelerometer]), and right forelimb (gyroscope) before evaluation in 2 consecutive trials, approximately 5 minutes apart, as the horse was trotted in a straight line. Signal-processing algorithms generated overall trial asymmetry measures for vertical head and pelvic movement and stride-by-stride differences in head and pelvic maximum and minimum positions between right and left sides of each stride. Repeatability was determined, and trial difference was determined for groups of horses with various numbers of strides for which data were collected per trial. Results-Inertial sensor-based measures of torso movement asymmetry were repeatable. Repeatability for measures of torso asymmetry for determination of hind limb lameness was slightly greater than that for forelimb lameness. Collecting large numbers of strides degraded stride-to-stride repeatability but did not degrade intertrial repeatability. Conclusions and Clinical Relevance-The inertial sensor system used to measure asymmetry of head and pelvic movement as an aid in the detection and evaluation of lameness in horses trotting in a straight line was sufficiently repeatable to investigate for clinical use.
Authors:
Kevin G Keegan; Joanne Kramer; Yoshiharu Yonezawa; Hiromitchi Maki; P Frank Pai; Eric V Dent; Thomas E Kellerman; David A Wilson; Shannon K Reed
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  72     ISSN:  1943-5681     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  2011 Sep 
Date Detail:
Created Date:  2011-09-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1156-63     Citation Subset:  IM    
Affiliation:
Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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