Benefits of rising trot identified in research
The rise trot significantly reduces the charge exerted on a horses back, a Dutch researcher has found.
The query yesteryear veterinary Patricia de Cocq, a corking horsewoman, besides gathered closed to insights into the crouched too elevated riding order used yesteryear jockeys, revealing merely how hard that order is.
De Cocq explains that many ridden horses sense dorsum hurting that is hard to treat.
She wondered whether riders modify their technique to trim back the charge exerted on their horses’ backs.
Analysing the movements of riders on trotting horses, de Cocq discovered that the rise trot significantly reduced the charge exerted on horses’ backs.
She besides built a computational simulation of a Equus caballus too passenger that could help riders discovery improve ways of riding.
De Coq besides constitute inward her query that jockeys were able to ride fast because their centre of volume barely moved at all.
Her findings bring been published inward The Journal of Experimental Biology.
De Cocq, from Wageningen University inward the Netherlands, explains riders bring a selection of ii techniques when perched on a trotting horse: the easier rise trot – when the passenger bobs upwards too down, standing inward the stirrups when off the saddle – too the to a greater extent than technically challenging sitting trot, where the passenger remains firmly seated.
As the rise trot was idea to trim back the charge exerted on a trotting horse’s back, de Cocq travelled to Hilary Clayton’s laboratory at Michigan State University inward the U.S.A. to role Clayton’s state-of-the-art three-dimensional displace capture equipment to examination the theory.
By filming experienced dressage riders every bit they trotted using both techniques, too analysing the displace of each Equus caballus too rider, de Cocq could run across that the centre of volume of riders using the rise trot moved much less during the standing stage than the centre of volume of sitting trot riders, reducing the strength exerted on the horse’s dorsum too lessening the conduct chances of injury.
While de Cocq was analysing the data, she came across a newspaper inward the journal, Science (Pfau et al., Science, 325, 289) that explained how the technique used yesteryear modern jockeys – where they stand upwards inward their stirrups – had significantly improved times inward Equus caballus racing.
She noticed that the posture of jockeys was similar to the standing stage of the rise trot.
She wondered whether she could prepare a mathematical model of a Equus caballus too passenger that would simulate the motion of a rider’s centre of volume too order factors that could trim back the strength exerted yesteryear the passenger on a horse’s back.
Teaming amongst Mees Muller too Johan van Leeuwen, de Cocq built 3 increasingly sophisticated models, representing the Equus caballus too passenger every bit systems of springs, dampers too indicate masses.
Then, yesteryear varying the stiffness of the jump representing the passenger inward the simplest model, de Cocq successfully reproduced the displace of the rider’s centre of volume during the sitting trot too when using the jockey’s standing posture.
Then, when she repeated the calculations using the minute model where she added a damper too brief free-fall to the get-go model, the displace of the centre of volume of the sitting trot passenger too the jockey was fifty-fifty to a greater extent than life-like.
But neither model reproduced the displace of a rider’s centre of volume during rise trot until de Cocq too van Leeuwen added a minute jump – mimicking the rider’s leg during the standing share of the pace – to the faux passenger spring.
By alternating betwixt the ii springs – activating the leg jump during the standing share of the pace too the passenger jump during the seated share – de Cocq successfully faux the rise trot.
Her calculations besides showed how hard the jockey’s technique is. She could solely simulate the relatively smoothen displace of the jockey’s centre of volume using a narrow make of jump stiffnesses too damping; too solely i combination of jump stiffness too damping produced the optimal province of affairs where the jockey’s centre of volume followed an around apartment line.
De Cocq points out that the electrical flow technique used yesteryear jockeys allows horses to gallop faster than other techniques.
However, it requires a huge amount of strength too preparation too she says, “If jockeys desire to improve fifty-fifty more, they would involve to become inward a straightaway line, non displace upwards too down, too that would go a challenge.”
de Cocq, P., Muller, M., Clayton, H. M. too van Leeuwen, J. L. (2013). Modelling biomechanical requirements of a passenger for unlike horse-riding techniques at trot. J. Exp. Biol. 216, 1850-1861.
Reporting: Kathryn Knight
Report at mag website
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