Objective determination of pelvic movement during hind limb lameness by use of a signal decomposition method and pelvic height differences.
Abstract: To evaluate pelvic movement over a large number of strides in sound horses and in horses with induced hind limb lameness by applying methods to the pelvis that have been described for evaluating vertical head movement in horses with induced forelimb lameness. Methods: 17 adult horses. Methods: Horses were filmed while trotting on a treadmill before and after induction of transient mild and moderate hind limb lamenesses. Vertical pelvic movement was measured by a signal decomposition method. The vertical pelvic signal was decomposed into a periodic component (A1) that occurred at half the stride frequency (representing vertical pelvic movement caused by lameness) and another periodic component (A2) that occurred at stride frequency (representing normal vertical pelvic movement of a trotting horse). Vertical pelvic and foot positions were correlated for each stride to compare the difference between the minimum and maximum heights of the pelvis during and after stance of the right hind limb to the minimum and maximum heights of the pelvis during and after stance of the left hind limb. Results: Maximum pelvic height difference and lameness amplitude (A1) differed significantly between sound and mild or moderate hind limb lameness conditions. Mean A1 value for vertical pelvic movement in sound horses was less than that previously reported for vertical head movement. Conclusions: Pelvic height differences and signal decomposition of pelvic movement can be used to objectively evaluate hind limb lameness in horses over a large number of strides in clinical and research settings.
Publication Date: 2004-06-17 PubMed ID: 15198212DOI: 10.2460/ajvr.2004.65.741Google Scholar: Lookup
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- Comparative Study
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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This study investigated how well pelvic height differences and signal decomposition methods can reveal signs of hind limb lameness in horses. In the research, 17 adult horses were made to trot before and after induced mild and moderate hind limb lameness, while their pelvic movements were recorded and analysed.
Methodology
- The researchers used a group of 17 adult horses for the study.
- Each horse was filmed while trotting on a treadmill under normal conditions and after transient hind limb lameness had been induced.
- Vertial pelvic movement was measured using a signal decomposition method, splitting the movement into two component signals: A1 which occurred at half stride frequency, indicating lameness; and A2 which was concurrent with stride frequency, indicating normal trotting movement.
- The researchers also compared the pelvic height at the highest and lowest points during the right and left hind limb stances to find any discrepancies.
Results
- The findings showed that maximum pelvic height difference and lameness amplitude or A1 greatly varied under normal conditions and conditions of induced hind limb lameness.
- The mean A1 value for vertical pelvic movement in sound horses was found to be less than the previously reported values for vertical head movement.
Conclusions
- The study concluded that pelvic height differences and signal decomposition of pelvic movement can be utilized to objectively evaluate hind limb lameness in horses across a large number of strides.
- This method is viable for use in both clinical and research settings, providing an efficient and reliable way to diagnose and study the lameness in horses.
Cite This Article
APA
Kramer J, Keegan KG, Kelmer G, Wilson DA.
(2004).
Objective determination of pelvic movement during hind limb lameness by use of a signal decomposition method and pelvic height differences.
Am J Vet Res, 65(6), 741-747.
https://doi.org/10.2460/ajvr.2004.65.741 Publication
Researcher Affiliations
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA.
MeSH Terms
- Animals
- Biomechanical Phenomena
- Gait / physiology
- Hindlimb / physiopathology
- Horse Diseases / physiopathology
- Horses
- Lameness, Animal / physiopathology
- Pelvic Bones / physiology
- Pelvic Bones / physiopathology
- Signal Processing, Computer-Assisted
- Time Factors
- Video Recording
Citations
This article has been cited 14 times.- Darbandi H, Munsters C, Parmentier J, Havinga P. Detecting fatigue of sport horses with biomechanical gait features using inertial sensors.. PLoS One 2023;18(4):e0284554.
- Zetterberg E, Leclercq A, Persson-Sjodin E, Lundblad J, Haubro Andersen P, Hernlund E, Rhodin M. Prevalence of vertical movement asymmetries at trot in Standardbred and Swedish Warmblood foals.. PLoS One 2023;18(4):e0284105.
- Macaire C, Hanne-Poujade S, De Azevedo E, Denoix JM, Coudry V, Jacquet S, Bertoni L, Tallaj A, Audigié F, Hatrisse C, Hébert C, Martin P, Marin F, Chateau H. Investigation of Thresholds for Asymmetry Indices to Represent the Visual Assessment of Single Limb Lameness by Expert Veterinarians on Horses Trotting in a Straight Line.. Animals (Basel) 2022 Dec 11;12(24).
- St George LB, Spoormakers TJP, Smit IH, Hobbs SJ, Clayton HM, Roy SH, van Weeren PR, Richards J, Serra Bragança FM. Adaptations in equine appendicular muscle activity and movement occur during induced fore- and hindlimb lameness: An electromyographic and kinematic evaluation.. Front Vet Sci 2022;9:989522.
- Panos KE, Morgan K, Gately R, Wilkinson J, Uden A, Reed SA. Short Communication: changes in gait after 12 wk of shoeing in previously barefoot horses.. J Anim Sci 2023 Jan 3;101.
- Feuser AK, Gesell-May S, Müller T, May A. Artificial Intelligence for Lameness Detection in Horses-A Preliminary Study.. Animals (Basel) 2022 Oct 17;12(20).
- Marunova E, Dod L, Witte S, Pfau T. Smartphone-Based Pelvic Movement Asymmetry Measures for Clinical Decision Making in Equine Lameness Assessment.. Animals (Basel) 2021 Jun 3;11(6).
- Persson-Sjodin E, Hernlund E, Pfau T, Haubro Andersen P, Holm Forsström K, Rhodin M. Effect of meloxicam treatment on movement asymmetry in riding horses in training.. PLoS One 2019;14(8):e0221117.
- Hardeman AM, Serra Bragança FM, Swagemakers JH, van Weeren PR, Roepstorff L. Variation in gait parameters used for objective lameness assessment in sound horses at the trot on the straight line and the lunge.. Equine Vet J 2019 Nov;51(6):831-839.
- Byström A, Roepstorff L, Rhodin M, Serra Bragança F, Engell MT, Hernlund E, Persson-Sjödin E, van Weeren R, Weishaupt MA, Egenvall A. Lateral movement of the saddle relative to the equine spine in rising and sitting trot on a treadmill.. PLoS One 2018;13(7):e0200534.
- Vertz J, Deblanc D, Rhodin M, Pfau T. Effect of a unilateral hind limb orthotic lift on upper body movement symmetry in the trotting horse.. PLoS One 2018;13(6):e0199447.
- Rhodin M, Persson-Sjodin E, Egenvall A, Serra Bragança FM, Pfau T, Roepstorff L, Weishaupt MA, Thomsen MH, van Weeren PR, Hernlund E. Vertical movement symmetry of the withers in horses with induced forelimb and hindlimb lameness at trot.. Equine Vet J 2018 Nov;50(6):818-824.
- Pfau T, Noordwijk K, Sepulveda Caviedes MF, Persson-Sjodin E, Barstow A, Forbes B, Rhodin M. Head, withers and pelvic movement asymmetry and their relative timing in trot in racing Thoroughbreds in training.. Equine Vet J 2018 Jan;50(1):117-124.
- Rhodin M, Roepstorff L, French A, Keegan KG, Pfau T, Egenvall A. Head and pelvic movement asymmetry during lungeing in horses with symmetrical movement on the straight.. Equine Vet J 2016 May;48(3):315-20.
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