Analyze Diet
Animals : an open access journal from MDPI2021; 11(4); 1105; doi: 10.3390/ani11041105

A Systematic Approach to Comparing Thermal Activity of the Thoracic Region and Saddle Pressure Distribution beneath the Saddle in a Group of Non-Lame Sports Horses.

Abstract: Thermography is a non-invasive method for measuring surface temperatures and may be a convenient way of identifying hypo/hyperthermic areas under a saddle that may be related to saddle pressures. A thermal camera quantified minimum/maximum/mean temperatures at specific locations (left/right) of the thoracic region at three-time points: (1) baseline; (2) post lunging; (3) post ridden exercise in eight non-lame sports horses ridden by the same rider. A Pliance (Novel) pressure mat determined the mean/peak saddle pressures (kPa) in the cranial and caudal regions. General linear mixed models with the horse as the random factor investigated the time point (fixed factor: baseline; lunge; ridden) and saddle fit (fixed factor: correct; wide; narrow) on thermal parameters with Bonferroni post hoc comparison. The saddle pressure data (grouped: saddle width) were assessed with an ANOVA and Tukey post hoc comparison ( ≤ 0.05). Differences between the saddle widths in the cranial/caudal mean ( = 0.05) and peak saddle pressures ( = 0.01) were found. The maximum temperatures increased post lunge ( ≤ 0.0001) and post ridden ( ≤ 0.0001) compared to the baseline. No difference between post lunge and post ridden exercise (all ≥ 0.51) was found. The thermal activity does not appear to be representative of increased saddle pressure values. The sole use of thermal imaging for saddle fitting should be applied with caution.
Publication Date: 2021-04-13 PubMed ID: 33924326PubMed Central: PMC8068952DOI: 10.3390/ani11041105Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

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.

The study investigates the connection between saddle fitting, skin temperature under the saddle, and pressure distribution in non-lame sports horses. The researchers found that while temperatures increase following exercise, they do not correlate with increased saddle pressure, suggesting that thermal imaging alone might not be sufficient for saddle fitting.

Research Methodology

  • The research team used thermography, a non-invasive technique for measuring surface temperatures, to identify hypo/hyperthermic areas underneath the saddle. A thermal camera provided minimum, maximum, and average temperature readings at various places (left and right) in the thoracic region at three different time points: before exercise (baseline), after lunging (light physical activity), and after riding exercises.
  • An instrument called a Pliance pressure mat was used for measuring saddle pressure in the forward (cranial) and rear (caudal) quadrants. The method calculated the mean and peak saddle pressures with the saddle fitted correctly, too wide or too narrow on the horse.
  • Horses were the random factor in the model, targeting the varying factors of time and saddle fit (narrow, correct, or wide) using general linear mixed models with a subsequent comparison through the Bonferroni post hoc method.
  • The saddle pressure data for different saddle widths were evaluated using ANOVA (Analysis of Variance) and a post hoc comparison using Tukey method to ascertain statistical significance levels.

Key Findings

  • There were significant differences in the mean and pressure peaks in the cranial/caudal areas depending on the saddle width used.
  • The maximum temperature rose substantially following lunging and riding compared to the baseline.
  • No significant difference was found in the temperature following lunging and the riding exercise.
  • Crucially, the thermal activity or temperature changes were not reflective of saddle pressure increments.

Conclusion

  • The study concluded that while thermal imaging can be beneficial in identifying temperature changes post-exercise, it doesn’t correlate with saddle pressure and thus may not be an effective standalone tool for saddle fitting. Therfore, the use of thermal imaging for saddle fitting needs to be applied with caution.
  • The findings underscore the need for a more comprehensive approach to saddle fitting that takes into consideration both thermal and pressure factors.

Cite This Article

APA
MacKechnie-Guire R, Fisher M, Mathie H, Kuczynska K, Fairfax V, Fisher D, Pfau T. (2021). A Systematic Approach to Comparing Thermal Activity of the Thoracic Region and Saddle Pressure Distribution beneath the Saddle in a Group of Non-Lame Sports Horses. Animals (Basel), 11(4), 1105. https://doi.org/10.3390/ani11041105

Publication

ISSN: 2076-2615
NlmUniqueID: 101635614
Country: Switzerland
Language: English
Volume: 11
Issue: 4
PII: 1105

Researcher Affiliations

MacKechnie-Guire, Russell
  • Centaur Biomechanics, 25 Oaktree Close, Moreton Morrell, Warwickshire CV35 9BB, UK.
  • Department of Clinical Science and Services, The Royal Veterinary College, Hawkshead Lane, Brookman's Park, Hatfield AL9 7TA, UK.
Fisher, Mark
  • Woolcroft Saddlery, Mays Lane, Wisbech PE13 5BU, UK.
Mathie, Helen
  • Helen Mathie Physiotheraphy, Estate House, Matfen NE20 0RP, UK.
Kuczynska, Kat
  • Vet-IR, 83 Ducie Street, Manchester M1 2JQ, UK.
Fairfax, Vanessa
  • Fairfax Saddles, The Saddlery, Fryers Road, Bloxwich, Walsall, West Midlands WS3 2XJ, UK.
Fisher, Diana
  • Woolcroft Saddlery, Mays Lane, Wisbech PE13 5BU, UK.
Pfau, Thilo
  • Department of Clinical Science and Services, The Royal Veterinary College, Hawkshead Lane, Brookman's Park, Hatfield AL9 7TA, UK.

Conflict of Interest Statement

H.M. and K.K. work with Vet-IR—thermography consultancy. M.F., D.F. and V.F. are SMS qualified saddle fitters. T.P. is owner of EquiGait Ltd. providing gait analysis products and services. R.M.-G. is director of Centaur Biomechanics.

References

This article includes 54 references
  1. Mackechnie-Guire R, Mackechnie-Guire E, Fisher M, Mathie H, Bush R, Pfau T, Weller R. Relationship Between Saddle and Rider Kinematics, Horse Locomotion, and Thoracolumbar Pressures in Sound Horses. J. Equine Vet. Sci. 2018;69:43–52.
  2. MacKechnie-Guire R, MacKechnie-Guire E, Fairfax V, Fisher D, Fisher M, Pfau T. The Effect of Tree Width on Thoracolumbar and Limb Kinematics, Saddle Pressure Distribution, and Thoracolumbar Dimensions in Sports Horses in Trot and Canter.. Animals (Basel) 2019 Oct 21;9(10).
    doi: 10.3390/ani9100842pmc: PMC6827167pubmed: 31640213google scholar: lookup
  3. Meschan EM, Peham C, Schobesberger H, Licka TF. The influence of the width of the saddle tree on the forces and the pressure distribution under the saddle.. Vet J 2007 May;173(3):578-84.
    doi: 10.1016/j.tvjl.2006.02.005pubmed: 16632390google scholar: lookup
  4. Clayton HM, Hampson A, Fraser P, White A, Egenvall A. Comparison of rider stability in a flapless saddle versus a conventional saddle.. PLoS One 2018;13(6):e0196960.
  5. Martin P, Cheze L, Pourcelot P, Desquilbet L, Duray L, Chateau H. Effects of Large Saddle Panels on the Biomechanics of the Equine Back During Rising Trot: Preliminary Results. J. Equine Vet. Sci. 2017;48:15–22.
  6. Murray R, Guire R, Fisher M, Fairfax V. Reducing Peak Pressures Under the Saddle Panel at the Level of the 10th to 13th Thoracic Vertebrae May Be Associated With Improved Gait Features, Even When Saddles Are Fitted to Published Guidelines. J. Equine Vet. Sci. 2017;54:60–69.
  7. Murray R, Mackechnie-Guire R, Fisher M, Fairfax V. Reducing peak pressures under the saddle at thoracic vertebrae 10–13 is associated with alteration in jump kinematics. Comp. Exerc. Physiol. 2018;14:239–247.
    doi: 10.3920/CEP180021google scholar: lookup
  8. Murray R, Mackechnie-Guire R, Fisher M, Fairfax V. Could Pressure Distribution Under Race-Exercise Saddles Affect Limb Kinematics and Lumbosacral Flexion in the Galloping Racehorse?. J Equine Vet Sci 2019 Oct;81:102795.
    doi: 10.1016/j.jevs.2019.102795pubmed: 31668303google scholar: lookup
  9. Belock B, Kaiser LJ, Lavagnino M, Clayton HM. Comparison of pressure distribution under a conventional saddle and a treeless saddle at sitting trot.. Vet J 2012 Jul;193(1):87-91.
    doi: 10.1016/j.tvjl.2011.11.017pubmed: 22178359google scholar: lookup
  10. Clayton HM, O'Connor KA, Kaiser LJ. Force and pressure distribution beneath a conventional dressage saddle and a treeless dressage saddle with panels.. Vet J 2014 Jan;199(1):44-8.
    doi: 10.1016/j.tvjl.2013.09.066pubmed: 24268681google scholar: lookup
  11. Latif SN, Von Peinen K, Wiestner T, Bitschnau C, Renk B, Weishaupt MA. Saddle pressure patterns of three different training saddles (normal tree, flexible tree, treeless) in Thoroughbred racehorses at trot and gallop.. Equine Vet J Suppl 2010 Nov;(38):630-6.
  12. Harman J. Tack and saddle fit.. Vet Clin North Am Equine Pract 1999 Apr;15(1):247-61, ix.
    doi: 10.1016/S0749-0739(17)30175-Xpubmed: 10218253google scholar: lookup
  13. Greve L, Dyson S, Pfau T. Alterations in thoracolumbosacral movement when pain causing lameness has been improved by diagnostic analgesia.. Vet J 2017 Jun;224:55-63.
    doi: 10.1016/j.tvjl.2017.03.009pubmed: 28697877google scholar: lookup
  14. Greve L, Dyson SJ. An investigation of the relationship between hindlimb lameness and saddle slip.. Equine Vet J 2013 Sep;45(5):570-7.
    doi: 10.1111/evj.12029pubmed: 23360352google scholar: lookup
  15. Byström A, Stalfelt A, Egenvall A, Von Peinen K, Morgan K, Roepstorff L. Influence of girth strap placement and panel flocking material on the saddle pressure pattern during riding of horses.. Equine Vet J Suppl 2010 Nov;(38):502-9.
  16. Peham C, Licka T, Schobesberger H, Meschan E. Influence of the rider on the variability of the equine gait.. Hum Mov Sci 2004 Nov;23(5):663-71.
    doi: 10.1016/j.humov.2004.10.006pubmed: 15589627google scholar: lookup
  17. Dyson S, Carson S, Fisher M. Saddle fitting, recognising an ill-fitting saddle and the consequences of an ill-fitting saddle to horse and rider. Equine Vet. Educ. 2015;27:533–543.
    doi: 10.1111/eve.12436google scholar: lookup
  18. de Cocq P, Clayton HM, Terada K, Muller M, van Leeuwen JL. Usability of normal force distribution measurements to evaluate asymmetrical loading of the back of the horse and different rider positions on a standing horse.. Vet J 2009 Sep;181(3):266-73.
    doi: 10.1016/j.tvjl.2008.03.002pubmed: 18502669google scholar: lookup
  19. de Cocq P, van Weeren PR, Back W. Saddle pressure measuring: validity, reliability and power to discriminate between different saddle-fits.. Vet J 2006 Sep;172(2):265-73.
    doi: 10.1016/j.tvjl.2005.05.009pubmed: 16014331google scholar: lookup
  20. Fruehwirth B, Peham C, Scheidl M, Schobesberger H. Evaluation of pressure distribution under an English saddle at walk, trot and canter.. Equine Vet J 2004 Dec;36(8):754-7.
    doi: 10.2746/0425164044848235pubmed: 15656510google scholar: lookup
  21. Kotschwar AB, Baltacis A, Peham C. The influence of different saddle pads on force and pressure changes beneath saddles with excessively wide trees.. Vet J 2010 Jun;184(3):322-5.
    doi: 10.1016/j.tvjl.2009.02.018pubmed: 19362030google scholar: lookup
  22. Kotschwar AB, Baltacis A, Peham C. The effects of different saddle pads on forces and pressure distribution beneath a fitting saddle.. Equine Vet J 2010 Mar;42(2):114-8.
    doi: 10.2746/042516409X475382pubmed: 20156245google scholar: lookup
  23. Gómez Alvarez CB, Wennerstrand J, Bobbert MF, Lamers L, Johnston C, Back W, van Weeren PR. The effect of induced forelimb lameness on thoracolumbar kinematics during treadmill locomotion.. Equine Vet J 2007 May;39(3):197-201.
    doi: 10.2746/042516407X173668pubmed: 17520968google scholar: lookup
  24. Buchner HH, Savelberg HH, Schamhardt HC, Barneveld A. Head and trunk movement adaptations in horses with experimentally induced fore- or hindlimb lameness.. Equine Vet J 1996 Jan;28(1):71-6.
  25. Gomez Alvarez 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 Mar;40(2):147-52.
    doi: 10.2746/042516408X250184pubmed: 18089465google scholar: lookup
  26. Greve L, Dyson SJ. The interrelationship of lameness, saddle slip and back shape in the general sports horse population.. Equine Vet J 2014 Nov;46(6):687-94.
    doi: 10.1111/evj.12222pubmed: 24372949google scholar: lookup
  27. Landman MA, de Blaauw JA, van Weeren PR, Hofland LJ. Field study of the prevalence of lameness in horses with back problems.. Vet Rec 2004 Aug 7;155(6):165-8.
    doi: 10.1136/vr.155.6.165pubmed: 15357376google scholar: lookup
  28. Keegan KG, Dent EV, Wilson DA, Janicek J, Kramer J, Lacarrubba A, Walsh DM, Cassells MW, Esther TM, Schiltz P, Frees KE, Wilhite CL, Clark JM, Pollitt CC, Shaw R, Norris T. Repeatability of subjective evaluation of lameness in horses.. Equine Vet J 2010 Mar;42(2):92-7.
    doi: 10.2746/042516409X479568pubmed: 20156242google scholar: lookup
  29. Keegan KG, Wilson DA, Wilson DJ, Smith B, Gaughan EM, Pleasant RS, Lillich JD, Kramer J, Howard RD, Bacon-Miller C, Davis EG, May KA, Cheramie HS, Valentino WL, van Harreveld PD. Evaluation of mild lameness in horses trotting on a treadmill by clinicians and interns or residents and correlation of their assessments with kinematic gait analysis.. Am J Vet Res 1998 Nov;59(11):1370-7.
    pubmed: 9829392
  30. Hewetson M, Christley RM, Hunt ID, Voute LC. Investigations of the reliability of observational gait analysis for the assessment of lameness in horses.. Vet Rec 2006 Jun 24;158(25):852-7.
    doi: 10.1136/vr.158.25.852pubmed: 16798953google scholar: lookup
  31. Parkes RS, Weller R, Groth AM, May S, Pfau T. Evidence of the development of 'domain-restricted' expertise in the recognition of asymmetric motion characteristics of hindlimb lameness in the horse.. Equine Vet J 2009 Feb;41(2):112-7.
    doi: 10.2746/042516408X343000pubmed: 19418737google scholar: lookup
  32. McCracken MJ, Kramer J, Keegan KG, Lopes M, Wilson DA, Reed SK, LaCarrubba A, Rasch M. Comparison of an inertial sensor system of lameness quantification with subjective lameness evaluation.. Equine Vet J 2012 Nov;44(6):652-6.
  33. Soroko M, Howell K. Infrared Thermography: Current Applications in Equine Medicine. J. Equine Vet. Sci. 2018;60:90–96.e2.
  34. Graf von Schweinitz D. Thermographic diagnostics in equine back pain.. Vet Clin North Am Equine Pract 1999 Apr;15(1):161-77, viii.
    doi: 10.1016/S0749-0739(17)30170-0pubmed: 10218248google scholar: lookup
  35. Arruda T.Z, Brass K.E, De La Corte F.D. Thermographic Assessment of Saddles Used on Jumping Horses. J. Equine Vet. Sci. 2011;31:625–629.
  36. Soroko M, Cwynar P, Howell K, Yarnell K, Dudek K, Zaborski D. Assessment of Saddle Fit in Racehorses Using Infrared Thermography. J. Equine Vet. Sci. 2018;63:30–34.
  37. Soroko M, Zaborski D, Dudek K, Yarnell K, Górniak W, Vardasca R. Evaluation of thermal pattern distributions in racehorse saddles using infrared thermography.. PLoS One 2019;14(8):e0221622.
  38. Turner T.A, Waldsmith J.K, Wilson J.H. How to assess saddle fit in horses. Proc. Am. Assoc. Equine Pract. 2004;50:196–201.
  39. Masko M, Krajewska A, Zdrojkowski L, Domino M, Gajewski Z. An application of temperature mapping of horse's back for leisure horse-rider-matching.. Anim Sci J 2019 Oct;90(10):1396-1406.
    doi: 10.1111/asj.13282pubmed: 31461205google scholar: lookup
  40. Soroko M, Jodkowska E, Zabłocka M. The Use of Thermography to Evaluate Back Musculoskeletal Responses of Young Racehorses to Training. Thermol. Intern. 2012;22:114.
  41. Witkowska-Piłaszewicz O, Maśko M, Domino M, Winnicka A. Infrared Thermography Correlates with Lactate Concentration in Blood during Race Training in Horses.. Animals (Basel) 2020 Nov 9;10(11).
    doi: 10.3390/ani10112072pmc: PMC7695344pubmed: 33182281google scholar: lookup
  42. Pfau T, Witte TH, Wilson AM. A method for deriving displacement data during cyclical movement using an inertial sensor.. J Exp Biol 2005 Jul;208(Pt 13):2503-14.
    doi: 10.1242/jeb.01658pubmed: 15961737google scholar: lookup
  43. Guire R, Weller R, Fisher M, Beavis J. Investigation Looking at the Repeatability of 20 Society of Master Saddlers Qualified Saddle Fitters’ Observations During Static Saddle Fit. J. Equine Vet. Sci. 2017;56:1–5.
  44. . Certificate in Saddle Fitting, in Association with the Society of Master Saddlers. City and Guilds, NPTC; London, UK [(accessed on 30 September 2020)].
  45. Westermann S, Buchner HH, Schramel JP, Tichy A, Stanek C. Effects of infrared camera angle and distance on measurement and reproducibility of thermographically determined temperatures of the distolateral aspects of the forelimbs in horses.. J Am Vet Med Assoc 2013 Feb 1;242(3):388-95.
    doi: 10.2460/javma.242.3.388pubmed: 23327183google scholar: lookup
  46. von Peinen K, Wiestner T, von Rechenberg B, Weishaupt MA. Relationship between saddle pressure measurements and clinical signs of saddle soreness at the withers.. Equine Vet J Suppl 2010 Nov;(38):650-3.
  47. Dantas F, Duarte M, Marins J, Fonseca B. Thermographic assessment of saddles used in Mangalarga Marchador horses. Arq. Bras. de Med. Vet. e Zootec. 2019;71:1165–1170.
    doi: 10.1590/1678-4162-10367google scholar: lookup
  48. Mara C.A, Cribbie R.A. Paired-Samples Tests of Equivalence. Commun. Stat.-Simul. Comput. 2012;41:1928–1943.
  49. Nyikos S, Von Rechenberg B, Werner D, Müller J.A, Buess C, Keel R, Kalpen A, Vontobel H.-D., Von Plocki K.A., Auer J.A. Measurements of saddle pressure in conjunction with back problems in horses. Pferdeheilkunde Equine Med. 2005;21:187–198.
    doi: 10.21836/PEM20050301google scholar: lookup
  50. Le KM, Madsen BL, Barth PW, Ksander GA, Angell JB, Vistnes LM. An in-depth look at pressure sores using monolithic silicon pressure sensors.. Plast Reconstr Surg 1984 Dec;74(6):745-56.
  51. Chang WL, Seireg AA. Prediction of ulcer formation on the skin.. Med Hypotheses 1999 Aug;53(2):141-4.
    doi: 10.1054/mehy.1998.0733pubmed: 10532709google scholar: lookup
  52. MacKechnie-Guire R, Fisher M, Pfau T. Effect of a Half Pad on Pressure Distribution in Sitting Trot and Canter Beneath a Saddle Fitted to Industry Guidelines.. J Equine Vet Sci 2021 Jan;96:103307.
    doi: 10.1016/j.jevs.2020.103307pubmed: 33349411google scholar: lookup
  53. Mackechnie-Guire R, Mackechnie-Guire E, Bush R, Fisher D, Fisher M, Weller R. Local Back Pressure Caused by a Training Roller During Lunging With and Without a Pessoa Training Aid. J. Equine Vet. Sci. 2018;67:112–117.
  54. Murray R, Guire R, Fisher M, Fairfax V. A Bridle Designed to Avoid Peak Pressure Locations under the Headpiece and Noseband Is Associated with More Uniform Pressure and Increased Carpal and Tarsal Flexion, Compared with the Horse’s Usual Bridle. J. Equine Vet. Sci. 2015;35:947–955.

Citations

This article has been cited 1 times.
  1. Domino M, Borowska M, Trojakowska A, Kozłowska N, Zdrojkowski Ł, Jasiński T, Smyth G, Maśko M. The Effect of Rider:Horse Bodyweight Ratio on the Superficial Body Temperature of Horse's Thoracolumbar Region Evaluated by Advanced Thermal Image Processing. Animals (Basel) 2022 Jan 13;12(2).
    doi: 10.3390/ani12020195pubmed: 35049815google scholar: lookup