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Home / Equine Research Bank / Equine Vet J / Adaptations in equine axial movement and muscle activity occ...
Equine veterinary journal2022; doi: 10.1111/evj.13906

Adaptations in equine axial movement and muscle activity occur during induced fore- and hindlimb lameness: A kinematic and electromyographic evaluation during in-hand trot.

Abstract: The inter-relationship between equine thoracolumbar motion and muscle activation during normal locomotion and lameness is poorly understood. Objective: To compare thoracolumbar and pelvic kinematics and longissimus dorsi (longissimus) activity of trotting horses between baseline and induced forelimb (iFL) and hindlimb (iHL) lameness. Methods: Controlled experimental cross-over study. Methods: Three-dimensional kinematic data from the thoracolumbar vertebrae and pelvis, and bilateral surface electromyography (sEMG) data from longissimus at T14 and L1, were collected synchronously from clinically nonlame horses (n = 8) trotting overground during a baseline evaluation, and during iFL and iHL conditions (2-3/5 AAEP), induced on separate days using a lameness model (modified horseshoe). Motion asymmetry parameters, maximal thoracolumbar flexion/extension and lateral bending angles, and pelvis range of motion (ROM) were calculated from kinematic data. Normalised average rectified value (ARV) and muscle activation onset, offset and activity duration were calculated from sEMG signals. Mixed model analysis and statistical parametric mapping compared discrete and continuous variables between conditions (α = 0.05). Results: Asymmetry parameters reflected the degree of iFL and iHL. Maximal thoracolumbar flexion and pelvis pitch ROM increased significantly following iFL and iHL. During iHL, peak lateral bending increased towards the nonlame side (NLS) and decreased towards the lame side (LS). Longissimus ARV significantly increased bilaterally at T14 and L1 for iHL, but only at LS L1 for iFL. Longissimus activation was significantly delayed on the NLS and precipitated on the LS during iHL, but these clear phasic shifts were not observed in iFL. Conclusions: Findings should be confirmed in clinical cases. Conclusions: Distinctive, significant adaptations in thoracolumbar and pelvic motion and underlying longissimus activity occur during iFL and iHL and are detectable using combined motion capture and sEMG. For iFL, these adaptations occur primarily in a cranio-caudal direction, whereas for iHL, lateral bending and axial rotation are also involved. Unassigned: O relacionamento entre a movimentação toracolombar e a ativação muscular durante a locomoção normal e quando há claudicação é pouco compreendido. Objective: Comparar a cinemática toracolombar e pélvica e a atividade do músculo longissimus dorsi (longissimus) em cavalos ao trote entre o momento inicial (baseline) e claudicação induzida no membro torácico (iFL) e pélvico (iHL). Unassigned: Estudo experimental controlado cruzado. Methods: Dados cinemáticos tridimensionais das vertebras toracolombar e pelve, e eletromiografia de superfície (sEMG) bilateral do longissimus na T14 e L1 foram coletados de forma síncrona de cavalos clinicamente não claudicantes (n = 8) trotando no momento inicial (baseline), e durante iFL e iHL (2-3/5 AAEP), induzidos separadamente em dias distintos utilizando um modelo de claudicação (ferradura modificada). Parâmetros de movimentação assimétrica, flexão/extensão máxima da toracolombar e ângulos de virada lateral, e amplitude de movimento da pelve (ROM) foram calculados a partir dos dados de cinemática. O valor médio normalizado retificado (ARV) e início da ativação muscular, e término e duração da atividade foram calculados utilizando sinais de sEMG. Análise de modelo misto e mapeamento paramétrico estatístico compararam variáveis discretas e contínuas entre condições (α=0.05). Results: Parâmetros de assimetria refletiram o nível de iFL e iHL. A flexão toracolombar máxima e a ROM da pelve aumentaram significativamente com iFL e iHL. Durante iHL, o pico de flexão lateral aumentou em direção ao lado não-claudicante (NSL) e diminuiu em direção ao lado claudicante (LS). Longissimus ARV aumentou significativamente para ambos os lados na T14 e L1 para iHL, mas apenas no LS para iFL. A ativação do longissimus foi significativamente retardado no NLS e precipitado no LS durante iHL, mas essa mudança de fase clara não foi observada no iFL. PRINCIPAIS LIMITAÇÕES: Esses achados precisam ser confirmados em casos clínicos. CONCLUSÕES: Adaptações significantes e distintas na movimentação toracolombar e pélvica e atividade do músculo longissimus ocorre durante iFL e iHL e são detectadas utilizando captura de movimento e sEMG. Para iFL, essas adaptações ocorrem primariamente na direção cranio-caudal, enquanto que em iHL, movimento lateral e rotação axial também estão envolvidos.
© 2022 The Authors. Equine Veterinary Journal published by John Wiley & Sons Ltd on behalf of EVJ Ltd.
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Publication Date: 2022-12-14 PubMed ID: 36516302DOI: 10.1111/evj.13906Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study investigates the adaptations in movement and muscle activity patterns in horses due to induced lameness in front (iFL) and hindlimbs (iHL). The researchers use a combination of three-dimensional motion capture and surface electromyography to document changes in the spinal motion and back muscle (longissimus dorsi) activity during trot, uncovering differences in motion adaptation between fore and hindlimb lameness.

Research Methodology

  • The study is a controlled experimental cross-over study involving eight non-lame horses. The horses were made to trot under baseline conditions, and also under conditions of induced fore and hindlimb lameness. Lameness was induced using a specially modified horseshoe.
  • Three-dimensional kinematic data was collected from the thoracolumbar vertebrae and pelvis of the horses. Furthermore, bilateral surface electromyography (sEMG) data were collected from the longissimus muscle at T14 and L1 spinal levels.
  • Movement asymmetry parameters, various motion angles and range, and muscle activation data were derived from the collected kinematic and sEMG data and compared between the different conditions using statistical models.

Key Findings

  • The degree of induced lameness was reflected in the obtained asymmetry parameters, indicating a systematic shift in the movement pattern due to the discomfort caused by lameness.
  • Notably, changes in thoracolumbar flexion and pelvis motion range were observed with both fore and hind limb lameness. However, such changes were more pronounced with hindlimb lameness.
  • Results also show that the longissimus muscle activation increased on both sides for hindlimb lameness (both at T14 and L1) but only on the lame side for forelimb lameness (at L1 level).
  • The onset of muscle activation was observed to be delayed on the non-lame side and early on the lame side during hindlimb lameness. Such clear phase shifts in muscle activation were not observed in forelimb lameness.

Conclusions and Considerations

  • The study concludes that significant adaptations in spinal, pelvic motion and associated muscle activity occur during fore and hindlimb lameness. These changes are more complex for hindlimb lameness with alterations in lateral bending and axial rotation as well.
  • While the study sheds light on the patterns of motion adaptation during lameness, the authors suggest that the findings need to be confirmed with clinical cases as well.
  • This research potentially opens up new possibilities for treating and managing lameness in horses, by providing detailed insights into the associated changes in locomotion and muscle activity.

Cite This Article

APA
Spoormakers TJP, St George L, Smit IH, Hobbs SJ, Brommer H, Clayton HM, Roy SH, Richards J, Serra Bragança FM. (2022). Adaptations in equine axial movement and muscle activity occur during induced fore- and hindlimb lameness: A kinematic and electromyographic evaluation during in-hand trot. Equine Vet J. https://doi.org/10.1111/evj.13906

Publication

Equine veterinary journal
ISSN: 2042-3306
NlmUniqueID: 0173320
Country: United States
Language: English

Researcher Affiliations

Spoormakers, Tijn J P
  • Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
St George, Lindsay
  • Research Centre for Applied Sport, Physical Activity and Performance, University of Central Lancashire, Preston, UK.
Smit, Ineke H
  • Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Hobbs, Sarah Jane
  • Research Centre for Applied Sport, Physical Activity and Performance, University of Central Lancashire, Preston, UK.
Brommer, Harold
  • Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Clayton, Hilary M
  • Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan, USA.
Roy, Serge H
  • Delsys/Altec Inc., Natick, Massachusetts, USA.
Richards, James
  • Allied Health Research Unit, University of Central Lancashire, Preston, UK.
Serra Bragança, Filipe Manuel
  • Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.

Grant Funding

  • BSAS 2018 / British Society of Animal Science (BSAS) 2018 Steve Bishop Early Career Award
  • D21EQ-406 / Morris Animal Foundation

References

This article includes 50 references
  1. Landman MAAM, De Blaauw JA, van Weeren PR, Hofland LJ. Field study of the prevalence of lameness in horses with back problems.. Vet Rec 2004;155:165-8.
  2. Nielsen TD, Dean RS, Robinson NJ, Massey A, Brennan ML. Survey of the UK veterinary profession: common species and conditions nominated by veterinarians in practice.. Vet Rec 2014;174:324.
  3. Haussler KK. Chiropractic evaluation and management of musculoskeletal disorders.. In: Ross MW, Dyson SJ, editors. Diagnosis and Management of Lameness in the horse. 2nd ed. St. Louis: Elsevier Inc.; 2011. p. 892-901.
  4. Jeffcott LB. Disorders of the thoracolumbar spine of the horse-a survey of 443 cases.. Equine Vet J 1980;12:197-210.
  5. Burns G, Dart A, Jeffcott LB. Clinical progress in the diagnosis of thoracolumbar problems in horses.. Equine Vet Educ 2018;30:477-85.
  6. Hardeman AM, Byström A, Roepstorff L, Swagemakers JH, van Weeren PR, Serra Bragança FM. Range of motion and between-measurement variation of spinal kinematics in sound horses at trot on the straight line and on the lunge.. PLoS One 2020;15(2):e0222822.
    doi: 10.1371/journal.pone.0222822google scholar: lookup
  7. Faber M, Schamhardt H, van Weeren PR, Johnston C, Roepstorff L, Barneveld A. Basic three-dimensional kinematics of the vertebral column of horses walking on a treadmill.. Am J Vet Res 2000;61:399-406.
  8. Faber M, Johnston C, Schamhardt H, van Weeren PR, Roepstorff L, Barneveld A. Basic three-dimensional kinematics of the vertebral column of horses trotting on a treadmill.. Am J Vet Res 2001;62:757-64.
  9. Faber M, Johnston C, Schamhardt H, van Weeren PR, Roepstorff L, Barneveld A. Three-dimensional kinematics of the equine spine during canter.. Equine Vet J 2001;33:145-9.
  10. Gómez-Álvarez CB, Wennerstrand J, Bobbert MF, Lamers L, Johnston C, Back W. The effect of induced forelimb lameness on thoracolumbar kinematics during treadmill locomotion.. Equine Vet J 2007;39:197-201.
  11. Gómez-Álvarez CB, Bobbert MF, Lamers L, Johnston C, Back W, van Weeren PR. The effect of induced hindlimb lameness on thoracolumbar kinematics during treadmill locomotion.. Equine Vet J 2008;40:147-52.
  12. Wennerstrand J, Gómez Álvarez CB, Meulenbelt R, Johnston C, van Weeren PR, Roethlisberger-Holm K. Spinal kinematics in horses with induced back pain.. Vet Comp Orthop Traumatol 2009;22:448-54.
  13. Buchner HHF, Savelberg HHCM, Schamhardt HC, Barneveld A. Head and trunk movement adaptations in horses with experimentally induced fore- or hindlimb lameness.. Equine Vet J 1996;28:71-6.
  14. Basmajian JV, De Luca CJ. Description and analysis of the EMG signal.. Muscles alive: their functions revealed by electromyography 5th ed. Baltimore, MD: Williams & Wilkins; 1985. p. 65-100.
  15. Zaneb H, Kaufmann V, Stanek C, Peham C, Licka TF. Quantitative differences in activities of back and pelvic limb muscles during walking and trotting between chronically lame and nonlame horses.. Am J Vet Res 2009;70:1129-34.
  16. St. George LB, Spoormakers TJP, Smit IH, Hobbs SJ, Clayton HM, Roy SH. 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.
    doi: 10.3389/fvets.2022.989522google scholar: lookup
  17. Wakeling JM, Ritruechai P, Dalton S, Nankervis K. Segmental variation in the activity and function of the equine longissimus dorsi muscle during walk and trot.. Equine Comp Exerc Physiol 2007;4:95-103.
  18. Cram JR, Rommen D. Effects of skin preparation on data collected using an EMG muscle-scanning procedure.. Biofeedback Self Regul 1989;14:75-82.
  19. Clancy EA, Morin EL, Merletti R. Sampling, noise-reduction and amplitude estimation issues in surface electromyography.. J Electromyogr Kinesiol 2002;12:1-16.
    doi: 10.1016/s1050-6411(01)00033-5google scholar: lookup
  20. Merkens HW, Schamhardt HC. Evaluation of equine locomotion during different degrees of experimentally induced lameness I: lameness model and quantification.. Equine Vet J 1988;20(S6):99-106.
  21. Roepstorff C, Dittmann MT, Arpagaus S, Serra Bragança FM, Hardeman AM, Persson-Sjödin E. Reliable and clinically applicable gait event classification using upper body motion in walking and trotting horses.. J Biomech 2021;114:110146.
    doi: 10.1016/j.jbiomech.2020.110146google scholar: lookup
  22. Serra Bragança FM, Roepstorff C, Rhodin M, Pfau T, van Weeren PR, Roepstorff L. Quantitative lameness assessment in the horse based on upper body movement symmetry: the effect of different filtering techniques on the quantification of motion symmetry.. Biomed Signal Process Control 2020;57:57.
    doi: 10.1016/j.bspc.2019.101674google scholar: lookup
  23. Rhodin M, Persson-Sjodin E, Egenvall A, Serra Bragança FM, Pfau T, Roepstorff L. Vertical movement symmetry of the withers in horses with induced forelimb and hindlimb lameness at trot.. Equine Vet J 2018;50:818-24.
  24. 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;51:831-9.
  25. St. George L, Hobbs SJ, Richards J, Sinclair J, Holt D, Roy SH. The effect of cut-off frequency when high-pass filtering equine sEMG signals during locomotion.. J Electromyogr Kinesiol 2018;43:28-40.
  26. St. George L, Roy SH, Richards J, Sinclair J, Hobbs SJ. Surface EMG signal normalisation and filtering improves sensitivity of equine gait analysis.. Comp Exerc Physiol 2019;15:173-85.
  27. St. George L, Clayton HM, Sinclair J, Richards J, Roy SH, Hobbs SJ. Muscle function and kinematics during submaximal equine jumping: what can objective outcomes tell us about athletic performance indicators?. Animals 2021;11:414.
    doi: 10.3390/ani11020414google scholar: lookup
  28. Smit IH, Hernlund E, Brommer H, van Weeren PR, Rhodin M, Serra Bragança FM. Continuous versus discrete data analysis for gait evaluation of horses with induced bilateral hindlimb lameness.. Equine Vet J 2022;54:626-33.
  29. Pataky TC, Robinson MA, Vanrenterghem J. Vector field statistical analysis of kinematic and force trajectories.. J Biomech 2013;46:2394-401.
  30. Hobbs SJ, Robinson MA, Clayton HM. A simple method of equine limb force vector analysis and its potential applications.. PeerJ 2018;6:e4399.
    doi: 10.7717/peerj.4399google scholar: lookup
  31. Buchner HHF, Savelberg HHCM, Schamhardt HC, Merkens HW, Barneveld A. Kinematics of treadmill versus overground locomotion in horses.. Vet Q 1994;16:87-90.
  32. Gómez Álvarez CB, Rhodin M, Byström A, Back W, van Weeren PR. Back kinematics of healthy trotting horses during treadmill versus over ground locomotion.. Equine Vet J 2009;41:297-300.
  33. Pourcelot P, Audigié F, Degueurce C, Denoix JM, Geiger D. Kinematics of the equine back: a method to study the thoracolumbar flexion-extension movements at the trot.. Vet Res 1998;29:519-25.
  34. Byström A, Hardeman AM, Serra Bragança FM, Roepstorff L, Swagemakers JH, van Weeren PR. Differences in equine spinal kinematics between straight line and circle in trot.. Sci Rep 2021;11:12832.
    doi: 10.1038/341598-021-92272-2google scholar: lookup
  35. Robert C, Audigié F, Valette JP, Pourcelot P, Denoix JM. Effects of treadmill speed on the mechanics of the back in the trotting saddlehorse.. Equine Vet J 2001;33(S33):154-9.
  36. Robert C, Valette JP, Denoix JM. The effects of treadmill inclination and speed on the activity of two hindlimb muscles in trotting horse.. Equine Vet J 2000;32:312-7.
  37. Robert C, Valette JP, Pourcelot P, Audigié F, Denoix JM. Effects of trotting speed on muscle activity and kinematics in saddlehorses.. Equine Vet J 2002;34(S34):295-301.
  38. Licka T, Peham C, Frey A. Electromyographic activity of the longissimus dorsi muscles in horses during trotting on a treadmill.. Am J Vet Res 2004;65:155-8.
  39. Kienapfel K, Preuschoft H, Wulf A, Wagner H. The biomechanical construction of the horse's body and activity patterns of three important muscles of the trunk in the walk, trot and canter.. J Anim Physiol Anim Nutr 2018;102:e818-27.
    doi: 10.1111/jpn.12840google scholar: lookup
  40. Robert C, Valette JP, Denoix JM. The effects of treadmill inclination and speed on the activity of three trunk muscles in the trotting horse.. Equine Vet J 2001;33:466-72.
  41. Ritter DA, Nassar PN, Fife M, Carrier DR. Epaxial muscle function in trotting dogs.. J Exp Biol 2001;204:3053-64.
  42. Schilling N, Carrier DR. Function of the epaxial muscles during trotting.. J Exp Biol 2009;212:1053-63.
  43. Vögele AM, Zsoldos RR, Krüger B, Licka T. Novel methods for surface emg analysis and exploration based on multi-modal Gaussian mixture models.. PLoS One 2016;11(6):e0157239.
    doi: 10.1371/journal.pone.0157239google scholar: lookup
  44. Von Scheven C. The anatomy and function of the equine thoracolumbar Longissimus dorsi muscle [thesis]. 2010.
    doi: 10.5282/edoc.12178google scholar: lookup
  45. Crevier-Denoix N, Ravary-Plumioën B, Vergari C, Camus M, Holden-Douilly L, Falala S. Comparison of superficial digital flexor tendon loading on asphalt and sand in horses at the walk and trot.. Vet J 2013;198:e130-6.
    doi: 10.1016/j.tvjl.2013.09.047google scholar: lookup
  46. Fischer S, Nolte I, Schilling N. Adaptations in muscle activity to induced, short-term hindlimb lameness in trotting dogs.. PLoS One 2013;8(11):e80987.
    doi: 10.1371/journal.pone.0080987google scholar: lookup
  47. Buchner HHF, Savelberg HHCM, Schamhardt HC, Barneveld A. Limb movement adaptations in horses with experimentally induced fore-or hindlimb lameness.. Equine Vet J 1996;28:63-70.
  48. Buchner HHF, Obermuller S, Scheidl M. Body centre of mass movement in the lame horse.. Equine Vet J 2001;33:122-7.
  49. Weishaupt MA, Wiestner T, Hogg HP, Jordan P, Auer JA. Compensatory load redistribution of horses with induced weight-bearing forelimb lameness trotting on a treadmill.. Vet J 2006;171:135-46.
  50. Hof AL, Elzinga H, Grimmius W, Halbertsma JPK. Speed dependence of averaged EMG profiles in walking.. Gait Posture 2002;16:78-86.

Citations

This article has been cited 9 times.
  1. St George L, Spoormakers TJP, Roy SH, Hobbs SJ, Clayton HM, Richards J, Serra Bragança FM. Reliability of surface electromyographic (sEMG) measures of equine axial and appendicular muscles during overground trot. PLoS One 2023;18(7):e0288664.
    doi: 10.1371/journal.pone.0288664pubmed: 37450555google scholar: lookup
  2. St George L, Nankervis K, Walker V, Maddock C, Robinson A, Sinclair J, Hobbs SJ. A Feasibility Study to Determine Whether Neuromuscular Adaptations to Equine Water Treadmill Exercise Can Be Detected Using Synchronous Surface Electromyography and Kinematic Data. Animals (Basel) 2025 Nov 1;15(21).
    doi: 10.3390/ani15213189pubmed: 41227519google scholar: lookup
  3. Pfau T, Forbes B, Sepulveda-Caviedes F, Chan Z, Weller R. Exploring Monthly Variation of Gait Asymmetry During In-Hand Trot in Thoroughbred Racehorses in Race Training. Animals (Basel) 2025 Aug 20;15(16).
    doi: 10.3390/ani15162449pubmed: 40867777google scholar: lookup
  4. Domino M, Borowska M, Stefanik E, Domańska-Kruppa N, Skibniewski M, Turek B. The Effect of Filtering on Signal Features of Equine sEMG Collected During Overground Locomotion in Basic Gaits. Sensors (Basel) 2025 May 8;25(10).
    doi: 10.3390/s25102962pubmed: 40431757google scholar: lookup
  5. Schwartz JA, Carrera-Justiz S, Repac JA. Surface electromyography of the vastus lateralis and gluteus medius muscles in post-operative T3-L3 hemilaminectomy dogs: a prospective controlled observational study. Front Vet Sci 2024;11:1431843.
    doi: 10.3389/fvets.2024.1431843pubmed: 39149150google scholar: lookup
  6. St George LB, Spoormakers TJP, Hobbs SJ, Clayton HM, Roy SH, Richards J, Serra Bragança FM. Classification performance of sEMG and kinematic parameters for distinguishing between non-lame and induced lameness conditions in horses. Front Vet Sci 2024;11:1358986.
    doi: 10.3389/fvets.2024.1358986pubmed: 38628939google scholar: lookup
  7. Byström A, Hardeman AM, Engell MT, Swagemakers JH, Koene MHW, Serra-Bragança FM, Rhodin M, Hernlund E. Normal variation in pelvic roll motion pattern during straight-line trot in hand in warmblood horses. Sci Rep 2023 Oct 10;13(1):17117.
    doi: 10.1038/s41598-023-44223-2pubmed: 37816848google scholar: lookup
  8. Egenvall A, Engström H, Byström A. Back motion in unridden horses in walk, trot and canter on a circle. Vet Res Commun 2023 Dec;47(4):1831-1843.
    doi: 10.1007/s11259-023-10132-ypubmed: 37127806google scholar: lookup
  9. 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.
    doi: 10.3389/fvets.2022.989522pubmed: 36425119google scholar: lookup
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