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Continuous versus discrete data analysis for gait evaluation of horses with induced bilateral hindlimb lameness

Smit, Ineke H. and Hernlund, Elin and Brommer, Harold and van Weeren, Paul Rene and Rhodin, Marie and Serra Braganca, Filipe M. (2022). Continuous versus discrete data analysis for gait evaluation of horses with induced bilateral hindlimb lameness. Equine Veterinary Journal. 54 :3 , 626-633
[Research article]

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Abstract

Background Gait kinematics measured during equine gait analysis are typically evaluated by analysing (asymmetry-based) discrete variables (eg, peak values) obtained from continuous kinematic signals (eg, timeseries of datapoints). However, when used for the assessment of complex cases of lameness, such as bilateral lameness, discrete variable analysis might overlook relevant functional adaptations. Objectives The overall aim of this paper is to compare continuous and discrete data analysis techniques to evaluate kinematic gait adaptations to lameness. Study design Method comparison. Methods Sixteen healthy Shetland ponies, enrolled in a research programme in which osteochondral defects were created on the medial trochlear ridges of both femurs, were used in this study. Kinematic data were collected at trot on a treadmill before and at 3 and 6 months after surgical intervention. Statistical parametric mapping and linear mixed models were used to compare kinematic variables between and within timepoints. Results Both continuous and discrete data analyses identified changes in pelvis and forelimb kinematics. Discrete data analyses showed significant changes in hindlimb and back kinematics, where such differences were not found to be significant by continuous data analysis. In contrast, continuous data analysis provided additional information on the timing and duration of the differences found. Main limitations A limited number of ponies were included. Conclusions The use of continuous data provides additional information regarding gait adaptations to bilateral lameness that is complementary to the analysis of discrete variables. The main advantage lies in the additional information regarding time dependence and duration of adaptations, which offers the opportunity to identify functional adaptations during all phases of the stride cycle, not just the events related to peak values.

Authors/Creators:Smit, Ineke H. and Hernlund, Elin and Brommer, Harold and van Weeren, Paul Rene and Rhodin, Marie and Serra Braganca, Filipe M.
Title:Continuous versus discrete data analysis for gait evaluation of horses with induced bilateral hindlimb lameness
Series Name/Journal:Equine Veterinary Journal
Year of publishing :2022
Volume:54
Number:3
Page range:626-633
Number of Pages:8
Publisher:WILEY
ISSN:0425-1644
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 403 Veterinary Science > Medical Bioscience
Keywords:clinical, data analysis, gait analysis, horse, kinematics
URN:NBN:urn:nbn:se:slu:epsilon-p-112756
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112756
Additional ID:
Type of IDID
DOI10.1111/evj.13451
Web of Science (WoS)000664451500001
ID Code:27623
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Anatomy, Physiology and Biochemistry
Deposited By: SLUpub Connector
Deposited On:26 Apr 2022 09:25
Metadata Last Modified:26 Apr 2022 09:31

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