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Mouldable, thermoplastic, glue-on frog-supportive shoes change hoof kinetics in normal and obese Shetland ponies

(2018) EQUINE VETERINARY JOURNAL. 50(5). p.684-689
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Abstract
Background: Obesity and hyperinsulinaemia are frequently encountered in the equine population and risk factors for the development of laminitis. There are many options for hoof support that claim a beneficial effect, but often the scientific evidence is scarce. Objectives: To quantify the effect of frog-supportive shoes on hoof kinetics in normal and obese ponies. Study design: Controlled invivo trial. Methods: Ten Shetland mares (n=10) with a normal (n=5) or obese (n=5) body condition were led over a dynamically calibrated pressure plate before (T0), immediately after (T1) and 72h (T2) after application of the shoes. The following locomotor variables were measured: stance duration (StDur), vertical impulse (VI), peak vertical force (PVF), time to PVF and time from PVF to lift off. The hoof print was divided into a toe and heel region and the StDur toe-heel index was calculated. The toe-heel hoof balance curves of the vertical force were plotted throughout the stance phase. Results: The VI and PVF increased significantly 72h after application of the shoes, when compared with T0 and T1. The StDur toe-heel index and toe-heel balance curves were significantly different between the normal and obese ponies. These variables became more comparable between the groups after application of the frog-supportive shoes. Main limitations: It would have been interesting to measure the effect of the shoe in patients with acute laminitis. However, this would have had major welfare implications. Conclusions: The obese ponies moved more carefully than the normal group, demonstrated by a decreased loading of the toe area. The data illustrate that the ponies became more comfortable 72h after application of the shoes, with a pronounced effect in the obese group. Thus, these results suggest that frog-supportive shoes could be beneficial, especially for obese ponies.
Keywords
PRESSURE-PLATE, TOE-HEEL, ENDOCRINOPATHIC LAMINITIS, HORSES, WALK, PREVALENCE, TROT, BALANCE, horse, ponies, hoof kinetics, force and pressure plate, body condition, score, subclinical laminitis, shoe

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Citation

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MLA
Sleutjens, J, FM Serra Bragança, MW van Empelen, et al. “Mouldable, Thermoplastic, Glue-on Frog-supportive Shoes Change Hoof Kinetics in Normal and Obese Shetland Ponies.” EQUINE VETERINARY JOURNAL 50.5 (2018): 684–689. Print.
APA
Sleutjens, J., Serra Bragança, F., van Empelen, M., ten Have, R., de Zwaan, J., Roelfsema, E., Oosterlinck, M., et al. (2018). Mouldable, thermoplastic, glue-on frog-supportive shoes change hoof kinetics in normal and obese Shetland ponies. EQUINE VETERINARY JOURNAL, 50(5), 684–689.
Chicago author-date
Sleutjens, J, FM Serra Bragança, MW van Empelen, RE ten Have, J de Zwaan, E Roelfsema, Maarten Oosterlinck, and Willem Back. 2018. “Mouldable, Thermoplastic, Glue-on Frog-supportive Shoes Change Hoof Kinetics in Normal and Obese Shetland Ponies.” Equine Veterinary Journal 50 (5): 684–689.
Chicago author-date (all authors)
Sleutjens, J, FM Serra Bragança, MW van Empelen, RE ten Have, J de Zwaan, E Roelfsema, Maarten Oosterlinck, and Willem Back. 2018. “Mouldable, Thermoplastic, Glue-on Frog-supportive Shoes Change Hoof Kinetics in Normal and Obese Shetland Ponies.” Equine Veterinary Journal 50 (5): 684–689.
Vancouver
1.
Sleutjens J, Serra Bragança F, van Empelen M, ten Have R, de Zwaan J, Roelfsema E, et al. Mouldable, thermoplastic, glue-on frog-supportive shoes change hoof kinetics in normal and obese Shetland ponies. EQUINE VETERINARY JOURNAL. 2018;50(5):684–9.
IEEE
[1]
J. Sleutjens et al., “Mouldable, thermoplastic, glue-on frog-supportive shoes change hoof kinetics in normal and obese Shetland ponies,” EQUINE VETERINARY JOURNAL, vol. 50, no. 5, pp. 684–689, 2018.
@article{8572137,
  abstract     = {Background: Obesity and hyperinsulinaemia are frequently encountered in the equine population and risk factors for the development of laminitis. There are many options for hoof support that claim a beneficial effect, but often the scientific evidence is scarce. 
Objectives: To quantify the effect of frog-supportive shoes on hoof kinetics in normal and obese ponies. 
Study design: Controlled invivo trial. 
Methods: Ten Shetland mares (n=10) with a normal (n=5) or obese (n=5) body condition were led over a dynamically calibrated pressure plate before (T0), immediately after (T1) and 72h (T2) after application of the shoes. The following locomotor variables were measured: stance duration (StDur), vertical impulse (VI), peak vertical force (PVF), time to PVF and time from PVF to lift off. The hoof print was divided into a toe and heel region and the StDur toe-heel index was calculated. The toe-heel hoof balance curves of the vertical force were plotted throughout the stance phase. 
Results: The VI and PVF increased significantly 72h after application of the shoes, when compared with T0 and T1. The StDur toe-heel index and toe-heel balance curves were significantly different between the normal and obese ponies. These variables became more comparable between the groups after application of the frog-supportive shoes. 
Main limitations: It would have been interesting to measure the effect of the shoe in patients with acute laminitis. However, this would have had major welfare implications. 
Conclusions: The obese ponies moved more carefully than the normal group, demonstrated by a decreased loading of the toe area. The data illustrate that the ponies became more comfortable 72h after application of the shoes, with a pronounced effect in the obese group. Thus, these results suggest that frog-supportive shoes could be beneficial, especially for obese ponies.},
  author       = {Sleutjens, J and Serra Bragança, FM and van Empelen, MW and ten Have, RE and de Zwaan, J and Roelfsema, E and Oosterlinck, Maarten and Back, Willem},
  issn         = {0425-1644},
  journal      = {EQUINE VETERINARY JOURNAL},
  keywords     = {PRESSURE-PLATE,TOE-HEEL,ENDOCRINOPATHIC LAMINITIS,HORSES,WALK,PREVALENCE,TROT,BALANCE,horse,ponies,hoof kinetics,force and pressure plate,body condition,score,subclinical laminitis,shoe},
  language     = {eng},
  number       = {5},
  pages        = {684--689},
  title        = {Mouldable, thermoplastic, glue-on frog-supportive shoes change hoof kinetics in normal and obese Shetland ponies},
  url          = {http://dx.doi.org/10.1111/evj.12814},
  volume       = {50},
  year         = {2018},
}

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