Shannon Wood, a graduate student in the mechanical engineering program at the University of Kentucky, has published a thesis entitled “Safety Concepts for Every Ride: A Statistical Ensemble Simulation to Mitigate Rotational Falls in Eventing Cross-Country.”
Wood was part of the team that worked with Dr. Suzanne Weaver Smith, University of Kentucky Professor of Mechanical Engineering, on the USEA Frangible Fence Study from 2016-2018. The study was funded by donations raised by the USEA Foundation and the initial findings were released in 2019. Information from this study is also included in Wood’s thesis.
Wood’s thesis abstract states, “Rotational falls are the leading cause of death and serious injury in the equestrian sport of eventing. Previous studies to develop safety devices used physical models representing one or at most several physical situations leading to different designs and no common understanding. In this thesis, a statistical ensemble model is developed and applied to generate and evaluate 10,000 different situations that might potentially lead to rotational falls. For accurate statistical representation of the horse and rider inertia distributions, measurements of over 400 training or competing horses and riders were recorded and incorporated. Video was recorded of 218 total competitors approaching 10 different jumps on cross-country courses in competitions ranging from Preliminary to CCI5*, yielding jump configuration angles for different fence types. Combining information for these, among 26 total variables, a statistical ensemble simulation using impulse momentum physics identifies conditions for rotation and defines design criteria for future general and situation-specific jumps and safety devices. A Jump Safety Quality Index is also devised to represent the benefit of an activating fence design for mitigating rotational falls versus the detriment and competition penalties of false activation.”
Wood also shared the following highlights:
“Results of this study include probability of rotation for a fixed fence scenario, the mitigative potential for preventing rotational falls, and contacts that cause a fence to activate but would not result in a rotational fall,” Wood said. “This information is incorporated into a Jump Safety Quality Index. It also includes force-time contact information for rotational and no-rotational fall contacts on the critical foreleg region. Illustrations of varieties of rotational falls are included—one-contact, two-contact (rotation on landing), and torsional falls and an additional contributor to rotation: hind feet pushing while in contact with the fence. Recommendations for impulse limit and contact angle are included to minimize unnecessary (false) activations.”
Wood’s thesis can be viewed in full here.
Read past updates on the USEA Frangible Fence Study:
The Fair Hill Organizing Committee (FHOC), an affiliate of the Sport and Entertainment Corporation of Maryland (The Sport Corp.), today announced athletes and horses in the inaugural Maryland 5 Star at Fair Hill (CCI5*-L) will be competing for $300,000 in prize money. Additionally, the US Equestrian Federation (USEF) Eventing National Championship (CCI3*-L), running in conjunction with the 5 Star, will award $25,000 in prize money. Both events, as well as the United States Eventing Association (USEA) Young Event Horse East Coast Championships, will take place this October 14-17 at the new Fair Hill Special Event Zone in Cecil County, Maryland.
You’ve seen a horse you like. You’ve ridden it; you love it. The money’s right; you’ve agreed to buy it. What happens next?
Pre-purchase veterinary examinations are one of those topics that a roomful of horsey people could discuss - and argue amongst themselves about - for hours. For the amateur rider, that can be confusing and slightly alarming.
So, let’s simplify it. What is a pre-purchase examination, why are they done, and what should you expect?
The USEA Intercollegiate Eventing Championships will take place later this month at the Virginia Horse Trials (VHT) in Lexington, Va. across May 27-30. Following the USEF COVID-19 Action Plan, the USEA is working with VHT organizer Andy Bowles to ensure the Championships are still a destination competition for all Intercollegiate event riders, packed full with an opening ceremony, the traditional “college town” area, the prestigious spirit award, and an abundance of prizes.
The FEI passed rule changes impacting Minimum Eligibility Requirements in November 2020 that go into effect on July 1, 2021. The changes will impact athletes who are uncategorized, “D” and “C” athletes competing at the CCI4*-S, CCI3*-L, CCI4*-L, and CCI5*-L levels. Please see below for the highlighted changes. The USEF requirements to compete at these levels remain unchanged, but please remember that the USEF requirements must be achieved within 12 months of the competition. These changes will be adopted into the USEF Eventing Rulebook by July 1. See Appendix 3 for qualification requirements.