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Animals : an open access journal from MDPI2022; 12(7); doi: 10.3390/ani12070836

Fluctuations of Physiological Variables during Conditioning of Lipizzan Fillies before Starting under Saddle.

Abstract: Scientific studies on the physiological responses of young horses to workloads are limited. Therefore, the aim of our study was to determine the basal values of some cardiovascular, thermoregulatory, hematological, and biochemical parameters in 10 purebred Lipizzan fillies aged 4 years in the initial phase of training, and their responses to a graded workload, i.e., by lunging for 15 min in four exercise tests at 2-week intervals. The basal values of the measured parameters were within a range for warm-blooded horses and mostly increased after exercise in all four exercise tests. Resting heart rates were above physiological values at the baseline but decreased as the study progressed. Bilateral symmetry of body surface temperatures (BSTs) was confirmed at rest and after exercise. The highest BSTs were measured at the cranial, followed by the caudal and distal body regions. A moderate increase in cortisol and a small increase in lactate concentration indicated a low intensity of workload. The results presented contribute to the knowledge of the complex physiological processes that occur in young horses during exercise and provide a basis for further research into the field of sports physiology and welfare, as well as the conservation and development of the Lipizzan breed.
Publication Date: 2022-03-25 PubMed ID: 35405826PubMed Central: PMC8997064DOI: 10.3390/ani12070836Google Scholar: Lookup
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  • Journal Article

Summary

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The research involved studying the physiological effects of load-bearing exercises on young Lipizzan horses in an attempt to understand how the horses respond to work and develop data that will contribute to improvements in equine sports physiology, welfare, and breed preservation.

Overview of the Study

  • The study aimed to address a gap in understanding of how young horses respond to load-bearing exercises.
  • The subjects of study were ten purebred Lipizzan fillies, all aged 4 years.
  • The comprehensive experiment involved monitoring various parameters such as cardiovascular activity, thermoregulation, and various hematological and biochemical factors.
  • The period of study entailed initial training phase, followed by a regime of workload increase carried out as four exercise tests at two-week intervals consisting of lunging exercises for 15 minutes.

Findings from the Study

  • The baseline values for all these parameters were found to be in the normal range for warm-blooded horses.
  • As was expected, these values mostly showed an increase in response to exercise in all the four exercise tests.
  • The resting heart rates for the horses were found to be above normal initially, which can be attributed to the initial stress or lack of conditioning. However, they reduced as the study progressed and training conditioned their bodies.
  • The study confirmed the bilateral symmetry of body surface temperatures (BST), both at rest and post exercise. The researchers found that the horses had the highest BST at the cranial region, followed by the caudal and distal body regions.
  • The increase in cortisol and lactate concentration post exercise indicated a relatively low intensity workload. Cortisol is a hormone released during stress and lactate is a product of anaerobic metabolism that is seen in muscle cells when the body is under exertion.

Conclusions

  • The study adds to the pool of knowledge about physiological responses in horses during exercises and will be useful in designing effective training and conditioning programs for young horses.
  • It also provides a scientific baseline that can support further research into equine sports physiology, welfare, and the conservation and development of the Lipizzan breed.

Cite This Article

APA
Čebulj-Kadunc N, Frangež R, Kruljc P. (2022). Fluctuations of Physiological Variables during Conditioning of Lipizzan Fillies before Starting under Saddle. Animals (Basel), 12(7). https://doi.org/10.3390/ani12070836

Publication

ISSN: 2076-2615
NlmUniqueID: 101635614
Country: Switzerland
Language: English
Volume: 12
Issue: 7

Researcher Affiliations

Čebulj-Kadunc, Nina
  • Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia.
Frangež, Robert
  • Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia.
Kruljc, Peter
  • Clinic for Breeding and Health Care of Horses, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia.

Grant Funding

  • 6000,00€ / Slovenian Research Agency (Program Group Number P4-0053) and Lipizza Stud Farm (Cooperation agreement 802-3/2016-09).

Conflict of Interest Statement

The authors declare no conflict of interest.

References

This article includes 50 references
  1. Alexander SL, Irvine CHG. The effect of social stress on adrenal axis activity in horses: The importance of monitoring corticosteroid-binding globulin capacity.. J. Endocrinol. 1998;157:425–432.
    doi: 10.1677/joe.0.1570425pubmed: 9691975google scholar: lookup
  2. Marc M, Parvizi N, Ellendorff F, Kallweit E, Elsaesser F. Plasma cortisol and ACTH concentrations in the warmblood horse in response to a standardized treadmill exercise test as physiological markers for evaluation of training status.. J. Anim. Sci. 2000;78:1936–1946.
    doi: 10.2527/2000.7871936xpubmed: 10907837google scholar: lookup
  3. Rivera E, Benjamin S, Nielsen B, Shelle J, Zanella AJ. Behavioral and physiological responses of horses to initial training: The comparison between pastured versus stalled horses.. Appl. Anim. Behav. Sci. 2002;78:235–252.
  4. Cayado P, Munoz-Escassi B, Dominguez C, Manley W, Olabarri B, Sanchez de la Muela M, Castejon F, Maranon G, Vara E. Hormone response to training and competition in athletic horses.. Equine Vet. J. Suppl. 2006;36:274–278.
  5. Berghold P, Möstl E, Aurich C. Effects of reproductive status and management on cortisol secretion and fertility of oestrous horse mares.. Anim. Reprod. Sci. 2007;102:276–285.
  6. Schmidt A, Jörg A, Möstl E, Müller J, Aurich C. Changes in cortisol release and heart rate and heart rate variability during the initial training of 3-year-old sport horses.. Horm. Behav. 2010;58:628–636.
    doi: 10.1016/j.yhbeh.2010.06.011pubmed: 20600048google scholar: lookup
  7. Erber R, Wulf M, Aurich J, Rose-Meierhöfer S, Hoffmann G, von Lewinski M, Möstl E, Aurich C. Stress Response of Three-year-old Horse Mares to Changes in Husbandry System During Initial Equestrian Training.. J. Equine Vet. Sci. 2013;33:1088–1094.
  8. Heleski CR, Shelle AC, Nielsen BD, Zanella AJ. Influence of Housing on Behavior in Weanling Horses. Proceedings of the 16th Equine Nutrition Physiology Symposium Raleigh, NC, USA. 2–5 June 1999; pp. 249–250.
  9. Warren-Smith AK, McGreevy PD. Equestrian Coaches’ Understanding and Application of Learning Theory in Horse Training.. Anthrozöos 2008;21:153–162.
    doi: 10.2752/175303708X305800google scholar: lookup
  10. McLean A, McGreevy P. Reducing Wastage in the Trained Horse: Training Principles that Arise from Learning Theory. Proceedings of the Second International Equitation Science Symposium Milano, Italy. 19–20 September 2006; p. 22.
  11. Visser EK, VanDierendonck M, Ellis AD, Rijksen C, Van Reenen CG. A comparison of sympathetic and conventional training methods on responses to initial horse training.. Vet. J. 2009;181:48–52.
    doi: 10.1016/j.tvjl.2009.03.009pubmed: 19375363google scholar: lookup
  12. Harris P, Marlin DJ, Davidson H, Rodgerson J, Gregory A, Harrison D. Practical assessment of heart rate response to exercise under field conditions.. Equine Comp. Exerc. Physiol. 2007;1:15–21.
    doi: 10.1017/S1478061507736459google scholar: lookup
  13. Munsters CC, Van De Broek J, Van Weeren R, Van Oldruitenborgh-Oosterbaan MMS. A prospective study on fitness, workload and reasons for premature training ends and temporary training breaks in two groups of riding horses.. Prev. Vet. Med. 2013;108:199–208.
  14. Munsters CCBM, van Iwaarden A, van Weeren R, van Oldruitenborgh-Oosterbaan MMS. Exercise testing in Warmblood sport horses under field conditions.. Vet. J. 2014;202:11–19.
    doi: 10.1016/j.tvjl.2014.07.019pubmed: 25172838google scholar: lookup
  15. Soroko M, Śpitalniak-Bajerska K, Zaborski D, Poźniak B, Dudek K, Janczarek I. Exercise-induced changes in skin temperature and blood parameters in horses.. Arch. Anim. Breed. 2019;62:205–213.
    doi: 10.5194/aab-62-205-2019pmc: PMC6852865pubmed: 31807631google scholar: lookup
  16. Hinchcliff KW, Geor RJ, Kaneps AJ. Equine Exercise Physiology.. 1st ed. Elsevier Saunders; Philadelphia, PA, USA: 2008.
  17. Kȩdzierski W, Pluta M, Kędzierski W. The Welfare of Young Polish Konik Horses Subjected to Agricultural Workload.. J. Appl. Anim. Welf. Sci. 2003;16:35–46.
    doi: 10.1080/10888705.2013.740997pubmed: 23282292google scholar: lookup
  18. De Bruijn CM, Houterman W, Ploeg M, Ducro B, Boshuizen B, Goethals K, Verdegaal E-L, Delesalle C. Monitoring training response in young Friesian dressage horses using two different standardised exercise tests (SETs). BMC Vet. Res. 2017;13:49.
    doi: 10.1186/s12917-017-0969-8pmc: PMC5309987pubmed: 28196500google scholar: lookup
  19. Čebulj-Kadunc N, Frangež R, Žgajnar J, Kruljc P. Cardiac, respiratory and thermoregulation parameters following graded exercises in Lipizzaner horses.. Vet. Arh. 2019;89:11–23.
    doi: 10.24099/vet.arhiv.0338google scholar: lookup
  20. Dovc P, Kavar T, Sölkner H, Achmann R. Development of the Lipizzan Horse Breed.. Reprod. Domest. Anim. 2006;41:280–285.
  21. Lipica. [(accessed on 24 February 2021)]. Available online: https://www.lipica.org/en/stable/stud-farm/breeding-programme.
  22. Hodgson DR, McKeever KH, McGowan CM. The Athletic Horse: Principles and Practice of Equine Sports Medicine.. 2nd ed. Saunders Elsevier; St. Louis, MO, USA: 2014.
  23. Mukai K, Takahashi T, Eto D, Ohmura H, Tsubone H, Hiraga A. Heart Rates and Blood Lactate Response in Thoroughbred Horses during a Race.. J. Equine Sci. 2007;18:153–160.
    doi: 10.1294/jes.18.153google scholar: lookup
  24. Aerts J-M, Gebruers F, Van Camp E, Berckmans D. Controlling horse heart rate as a basis for training improvement.. Comput. Electron. Agric. 2008;64:78–84.
  25. Jodkowska E, Dudek K, Przewozny M. The maximum temperatures (Tmax) distribution on the body surface of sport horses.. J. Life Sci. 2011;5:291–297.
  26. Padalino B, Zaccagnino P, Celi P. The Effect of Different Types of Physical Exercise on the Behavioural and Physiological Parameters of Standardbred Horses Housed in Single Stalls.. Vet. Med. Int. 2014;2014:875051.
    doi: 10.1155/2014/875051pmc: PMC3920612pubmed: 24587940google scholar: lookup
  27. Redaelli V, Bergero D, Zucca E, Ferrucci F, Costa LN, Crosta L, Luzi F. Use of Thermography Techniques in Equines: Principles and Applications.. J. Equine Vet. Sci. 2014;34:345–350.
  28. Wallsten H, Olsson K, Dahlborn K. Temperature regulation in horses during exercise and recovery in a cool environment.. Acta Vet. Scand. 2012;54:42.
    doi: 10.1186/1751-0147-54-42pmc: PMC3427134pubmed: 22805591google scholar: lookup
  29. Hargreaves BJ, Kronfeld DS, Naylor JRJ. Ambient temperature and relative humidity influenced packed cell volume, total plasma protein and other variables in horses during an incremental submaximal field exercise test.. Equine Vet. J. 1999;31:314–318.
  30. Allen KJ, Young LE, Franklin SH. Evaluation of heart rate and rhythm during exercise.. Equine Vet. Educ. 2016;28:99–112.
    doi: 10.1111/eve.12405google scholar: lookup
  31. Serrano MG, Evans DL, Hodgson JL. Heart rate and blood lactate responses during exercise in preparation for eventing competition.. Equine Vet. J. 2002;34:135–139.
  32. Vincent TL, Newton JR, Deaton CM, Franklin SH, Biddick T, McKeever KH, McDonough P, Young LE, Hodgson DR, Marlin DJ. Retrospective study of predictive variables for maximal heart rate (HRmax) in horses undergoing strenuous treadmill exercise.. Equine Vet. J. 2006;36:146–152.
  33. Simon EL, Gaughan EM, Epp T, Spire M. Influence of exercise on the thermographically determined surface temperatures of thoracic and pelvic limbs in horses.. J. Am. Vet. Med. Assoc. 2006;299:1940–1944.
    doi: 10.2460/javma.229.12.1940pubmed: 17173534google scholar: lookup
  34. Wilk I, Wnuk-Pawlak E, Janczarek I, Kaczmarek B, Dybczyńska M, Przetacznik M. Distribution of Superficial Body Temperature in Horses Ridden by Two Riders with Varied Body Weights.. Animals 2020;10:340.
    doi: 10.3390/ani10020340pmc: PMC7071094pubmed: 32098105google scholar: lookup
  35. Autio E, Neste R, Airaksinen S, Heiskanen M-L. Measuring the Heat Loss in Horses in Different Seasons by Infrared Thermography.. J. Appl. Anim. Welf. Sci. 2006;9:211–221.
    doi: 10.1207/s15327604jaws0903_3pubmed: 17112332google scholar: lookup
  36. Morgan K. Thermoneutral zone and critical temperatures of horses.. J. Therm. Biol. 1998;23:59–61.
  37. Jodkowska E, Dudek K. Study on symmetry of body surface temperature of race horses.. Przegl. Nauk Literat. Zootech. 2000;50:307–319.
  38. Jodkowska E. Body surface temperature as a criterion of the horse predisposition to effort.. Zesz. Nauk Akad. Rolniczej Wrocl. 2005;511:7–114.
  39. Hovey MR, Davis A, Chen S, Godwin P, Porr CS. Evaluating Stress in Riding Horses: Part One—Behavior Assessment and Serum Cortisol.. J. Equine Vet. Sci. 2021;96:103297.
    doi: 10.1016/j.jevs.2020.103297pubmed: 33349400google scholar: lookup
  40. Ono A, Matsuura A, Yamazaki Y, Sakai W, Watanabe K, Nakanowatari T, Kobayashi H, Irimajiri M, Hodate K. Influence of riders’ skill on plasma cortisol levels of horses walking on forest and field trekking courses.. Anim. Sci. J. 2017;88:1629–1635.
    doi: 10.1111/asj.12801pubmed: 28402026google scholar: lookup
  41. Cravana C, Medica P, Prestopino M, Fazio E, Ferlazzo A. Effects of competitive and noncompetitive showjumping on total and free iodothyronines, b-endorphin, ACTH and cortisol levels of horses.. Equine Vet. J. 2010;42:179–184.
  42. Kang OD, Lee WS. Changes in Salivary Cortisol Concentration in Horses during Different Types of Exercise.. Asian-Australas. J. Anim. Sci. 2016;29:747–752.
    doi: 10.5713/ajas.16.0009pmc: PMC4852239pubmed: 26954193google scholar: lookup
  43. Franklin RP, Peloso JG. Review of the clinical use of lactate.. Am. Assoc. Equine Pract. Proc. 2006;52:305–309.
  44. Henderson ISF. Diagnostic and prognostic use of L-lactate measurement in equine practice.. Equine Vet. Educ. 2013;25:468–475.
    doi: 10.1111/eve.12033google scholar: lookup
  45. Lindner A, Mosen H, Kissenbeck S, Fuhrmann H, Sallmann HP. Effect of blood lactate-guided conditioning of horses with exercises of differing durations and intensities on heart rate and biochemical blood variables.. J. Anim. Sci. 2009;87:3211–3217.
    doi: 10.2527/jas.2009-2001pubmed: 19542497google scholar: lookup
  46. Kang OD, Park YS. Effect of age on heart rate, blood lactate concentration, packed cell volume and hemoglobin to exercise in Jeju crossbreed horses.. J. Anim. Sci. Technol. 2017;59:2.
    doi: 10.1186/s40781-017-0126-8pmc: PMC5267427pubmed: 28138395google scholar: lookup
  47. Jain NC. Essentials of Veterinary Hematology.. Lea & Febiger; Philadelphia, PA, USA: 1993.
  48. Cebulj-Kadunc N, Bozic M, Kosec M, Cestnik V. The Influence of Age and Gender on Haematological Parameters in Lipizzan Horses.. J. Vet. Med. Ser. A. 2002;49:217–221.
  49. Cebulj-Kadunc N, Kosec M, Cestnik V. The Variations of White Blood Cell Count in Lipizzan Horses.. J. Vet. Med. Ser. A. 2003;50:251–253.
  50. Satué K, Hernández A, Muñoz A. Physiological factors in the Interpretation of Equine Hematological Profile.. Hematology: Science and Practice In: Lawrie C., editor. InTech; Rijeka, Croatia: 2012. pp. 573–596.

Citations

This article has been cited 2 times.
  1. Čebulj-Kadunc N, Frangež R, Kruljc P. Long-Term Changes of Physiological Reactions in Young Lipizzan Stallions During Exercise Testing. Animals (Basel) 2025 Aug 23;15(17).
    doi: 10.3390/ani15172479pubmed: 40941274google scholar: lookup
  2. Kastelic M, Gregurić Gračner G, Tomažič I, Kvapil P, Harej M, Dovč A. Comparison of Cortisol Concentrations in Different Matrices in Alpine Ibex (Capra ibex) at the Zoo. Animals (Basel) 2023 Aug 2;13(15).
    doi: 10.3390/ani13152491pubmed: 37570299google scholar: lookup