Christa Lesté-Lasserre, MA

Passionate about horses and science from the time she was riding her first Shetland Pony in Texas, Christa Lesté-Lasserre writes about scientific research that contributes to a better understanding of all equids. After undergrad studies in science, journalism, and literature, she received a master’s degree in creative writing. Now based in France, she aims to present the most fascinating aspect of equine science: the story it creates. Follow Lesté-Lasserre on Twitter @christalestelas.

Articles by: Christa Lesté-Lasserre, MA

FEI NSAID Congress Convenes in Switzerland

The future of non-steroidal anti-inflammatory (NSAID) use in international equestrian competitions is currently under open debate in an unprecedented two-day congress hosted by the Fédération Equestre Internationale (FEI) in Lausanne, Switzerland. This “long-awaited” event on Aug. 16 and 17 provides a forum for an organized and scientifically informed debat

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Smaller Endoscopes Lead to Less Invasive Navicular Treatment

A novel twist to an existing surgical procedure is creating new opportunities for healing a long-recognized form of lameness, according to Italian researchers. Palmar foot pain (a modern term for navicular syndrome) cases are now being treated with e

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Study: Rein Tension Varies Between Riders, Affects Horses’ Gaits

You know what it means to apply light contact with the bit, but have you ever wondered if your interpretation is the same as other riders’? And how strong is “strong contact,” exactly? What kinds of effects do these different hand movements have on your horse–particularly his stride? These questions are what a couple of England-based equitation science researchers

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Spatial Reasoning and Laterality Affect Riding Horses’ Behavior

“Can’t go over it, can’t go under it, have to go around it.” No, your horse isn’t on a bear hunt; he’s on a bucket hunt, trying to reach his food around an experimental barrier. Italian equitation science researchers set up this obstacle game to see how horses respond to the next question: “Around it, yeah, but which way?” Whether horses go right

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New Foal Immunity Research Brings Hope for Improved Prevention Methods

A foal’s immune system is known to be weak and immature, but new cell-based research suggests that “immunodeficiency” might be too broad a term to define the disease-fighting capacity of the youngest horses. The research is overturning old theories about foal immunity, which could soon lead to improved disease prevention methods and more effective treatments for sick

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Once-Paralyzed Foal Now Walking Freely

Vitelle, the once-paralyzed filly, is finally walking, trotting, and cantering without a walker at the farm in Belgium she left more than a year ago. In June 2009, at 3 weeks old, the Boulonnais Draft horse foal developed sudden paralysis and urinary incontinence. Three days later she underwent a groundbreaking surgical laminectomy at a Belgian veterinary school to remove a cyst from her spinal co

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Equitation Science Symposium Emphasizes Horse Welfare and Human Safety

Rein tension, saddle and seat pressure, training rewards and reinforcement, and the evaluation of stress and emotions in riding horses were some of the main topics at this year’s International Equitation Science Symposium held July 31–Aug. 2 in Uppsala and Strömsholm, Sweden. With the theme “Horse welfare and human safety: importance of learning, training, and

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FEI Athletes Receive Anti-Doping Regulation Training

With the adoption of the new Equine Anti-Doping and Controlled Medication Regulations (EADCMR), effective since April 2010, the Fédération Equestre Internationale (FEI) has reinforced the concept of the Person Responsible in doping cases. The recent doping case of German rider Marco Kutscher, who was tri

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Morrissey Disqualified, Ground Jury Reprimanded in Excessive Whipping Incident

Alltech FEI World Equestrian Games (WEG) show jumping horse candidate Crelido, ridden by Michael Morrissey (USA), was abused during a WEG-qualifying event when he was “excessively whipped,” and Morrissey has hence been disqualified, according to the statement of the final decision of the Fédération Equestre Internationale (FEI) Tribunal.

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FEI Hypersensitivity Protocol Refined Following Sapphire Decisions

Less than a week after the resolution of the legal dispute concerning World Cup mount Sapphire, ridden by McLain Ward (USA), new international guidelines for the evaluation of hypersensitivity have been issued, according to the Fédération Equestre Internationale (FEI). “Following the Sapphire disqualification and the legal challenge, the FEI examined carefully t

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Equitarianism Brings Veterinary and Farrier Care to Dominican Republic Equids

Through literally hundreds of vaccinations and dewormings, 60 surgeries, nutrition training, and a nationwide farrier clinic, all from June 6-13, the Dominican Republic’s horses, donkeys, and mules are once again benefiting from a new concept known as “equitarianism.”

The equitarian effort, headed by Jay Merriam, DVM, MS, of the Massachusetts Equine Clinic in conjunc

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FEI: Kutscher ‘Person Responsible’ for Doping at 2008 Olympics

Two-time Olympian Marco Kutscher might not have known his horse Cornet Obolensky received injections of a prohibited substance during the 2008 Olympic Games in Beijing, but the German equestrian was still named the “primary person responsible” and, thus, negligent, according to the decision of the Tribunal of the Fédération Equestre Internationale (FEI).

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TEM Aids in Understanding Developing Horse

Using a modern TEM, which can magnify images up to 250,000 times with high quality resolution, researchers examined 14- and 16-day-old embryos (about a half an inch in diameter) to better understand the unique aspects of the developing horse.

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Anky: Salinero Won’t Compete in WEG Dressage, Still Mending

Two-time Olympic gold medalist dressage mount Salinero will not be competing at the 2010 Alltech World Equestrian Games due to ongoing complications from having injured his withers, according to his owner, trainer, and rider Anky van Grunsven of the Netherlands.

“As long as it hurts to have a saddle on him, he won’t be ridden,” van Grunsven said.

Swelling

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Studies Track Horses’ Movement Patterns

Where the wild horses roam free, daily hoof tracks can be followed for miles. Now thanks to new, lightweight GPS technology, Australian researchers are no longer following tracks but recording satellite signals from various wild horse herds as well as domestic horses. Their studies suggest that through domestication and stabling, horses have taken on movement patterns that might be negatively aff

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Posture of Rider and Rider Linked, Study Shows

By comparing certain riding positions of amateur equestrians and the neck positions of their mounts to the kind of back pain those horses experienced while in the stall, the researchers concluded that how you ride makes a big difference in equine welfare.

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