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Topic:Performance Horses
Performance horses are equines specifically trained and conditioned for activities that require a high level of athleticism, such as racing, dressage, show jumping, and eventing. These horses undergo specialized training regimens to enhance their physical capabilities, including speed, endurance, agility, and strength. The management of performance horses often involves tailored nutrition plans, regular veterinary care, and specific conditioning programs to optimize their performance and minimize the risk of injury. This topic covers peer-reviewed research studies and scholarly articles that explore the physiology, training methodologies, health management, and performance outcomes of these horses in various competitive disciplines.
Improving sport horse selection using machine learning: Early prediction of elite-level show jumping performance. Early identification of sport potential in show jumping horses remains challenging because competition outcomes vary widely, and elite-level performance develops after considerable time. In this study, we evaluated the applicability of machine learning approaches to competition records from horses identified through FEI participation, complemented by national-level records from Sweden, Belgium and France, with the aim of identifying horses likely to reach elite performance. Performance data from Fédération Équestre Internationale (FEI) competitions were analysed using an Extreme Gradient Bo...
Pilot Study on the Development and Assessment of a Novel Sensor for Measuring Rein Tension. Effective horse-rider communication is essential in equestrian sports, both for performance and animal welfare. Rein tension, which is often applied through negative reinforcement (i.e., the release of pressure to reward a desired response), plays a central role in this interaction. However, high or inconsistent tension can lead to discomfort or injury, particularly in the mouth cavity. While previous studies have analyzed rein tension in basic gaits such as walk, trot, and canter, limited research exists on more complex maneuvers like jumping or abrupt stops. This pilot study introduces a cus...
Race Performance Following Arthroscopic Surgery for Femoropatellar and Tarsocrural Osteochondrosis in Juvenile Thoroughbreds. The objective of this study is to evaluate racing performance of Thoroughbred yearlings following arthroscopic surgery for osteochondrosis (OC) of the femoropatellar (FP) and tarsocrural (TC) joints. Unassigned: This is a retrospective study of Thoroughbreds 0.05). In both groups, no significant performance differences were found between unilateral and bilateral cases ( > 0.05). Unassigned: Racing performance after FP or TC OC surgery was comparable to that of unaffected controls. Bilateral cases performed as successfully as unilateral.
Comparative genomics of Standardbred horses reveals candidate regions under selection for harness racing performance. Harness racing performance in horses is a complex polygenic trait influenced by genetic background, breeding history, training, and environment. Understanding genomic patterns shaped by long-term artificial selection provides insights into performance-related traits and breed-specific genomic variation. Objective: This study aimed to characterize genomic differentiation, population structure, and candidate genomic regions potentially influenced by historical selection in Standardbred horses using comparative whole-genome sequencing involving diverse horse breeds. Methods: Whole-genome sequenci...
Survey of rider and horse size proportions and associated rider perceptions. The influence of a rider's size on equine performance and welfare remains a topic of debate in the equestrian industry. Most previous research has examined the weight ratios of riders and horses in controlled experimental settings, and the existing perceptions of acceptable rider-horse unit proportions have not been investigated. Objective: The aim of this study was to investigate horse and rider size and skill proportions among Finnish horses and riders. The study also investigated riders' perceptions of the acceptability of these size proportions. Methods: Riders over 18 years of age were in...
Allele frequencies of 7 inherited disorders in performance and random cohorts of American Quarter Horses (2020-2024). To estimate allele frequencies for genetic diseases in the American Quarter Horse (QH), including hyperkalemic periodic paralysis (HYPP), type 1 polysaccharide storage myopathy (PSSM1), malignant hyperthermia (MH), myosin-heavy chain myopathy (MYHM), glycogen branching enzyme deficiency (GBED), hereditary equine regional dermal asthenia (HERDA), and equine juvenile spinocerebellar ataxia (EJSCA), and to compare these frequencies over time among elite performance subgroups and a random cohort of registered horses. Unassigned: In this prospective genetic survey, DNA was extracted from 300 elite ...
Validation of a handheld smartphone markerless method for quantifying thoracolumbar flexion-extension range of motion in horses at trot. Back pain and poor performance in horses are difficult to assess objectively and thoracolumbar flexion-extension range of motion (FE) is not reliably evaluated by subjective observation alone. A handheld, smartphone-based markerless computer vision system (RealHorse®; RH) may enable objective clinical and field-based FE assessment but requires validation against an established optical motion capture reference system (Qualisys®; QS). Objective: To compare the accuracy and precision of RH relative to QS for measuring FE in horses trotting on a straight line and on a circle. Methods: Cross-sect...
Serum Osteocalcin and CTX-I in Fit-to-Race Thoroughbred Racehorses: Reference Intervals and Associations with Demographic, Training, and Lameness-Related Factors. Musculoskeletal injury remains a major welfare and performance concern in Thoroughbred racing, and biomarkers for early risk stratification are of scientific interest. This multicentre observational cohort study characterised serum concentrations of two bone turnover markers, osteocalcin/BGLAP (OC) and C-terminal telopeptide of type I collagen (CTX-I), in 1359 fit-to-race Thoroughbred racehorses sampled across New South Wales, Victoria, and Western Australia. Biomarker distributions, population-wide percentile ranges, demographic and training-related associations, and short-term soundness outc...
The effect of intravenous fluids administered prior to competition: A randomized clinical. Administration of intravenous fluids prior to competition is common at major equestrian competitions, yet few studies have evaluated the benefits of this practice. Objective: The hypothesis was that pre-ride intravenous fluid therapy would be associated with a lower heart rate and improved laboratory hydration parameters during or after the ride. Methods: 14 client owned horses entered in a 45 km ride in extreme heat and terrain were randomly assigned to receive IV fluids (IVF) or no IV fluids (NIV) the day before the ride. Blood samples and physical examination findings were collected at 6 ti...
Longitudinal, Objective Fan-Beam Computed Tomographic Evaluation of the Distal Third Metacarpal Bone in 31 Non-Lame Showjumpers. Computed tomography (CT) is increasingly used in equine lameness diagnosis, but no objective CT findings have been documented in the fetlock of sport horses. The aim of this study was to describe the pattern and longitudinal changes of densification in the distal third metacarpal bone (McIII) in non-lame showjumpers using CT measurements. Fan-beam CT examination of both metacarpophalangeal regions was performed in 31 non-lame showjumpers in regular work, at four examinations (times 0-3) on 27, 21 and 10 horses, respectively, with a median interval of 10 months. Mean Hounsfield unit (HU) values...
Horses undergoing supramaximal fixed-speed treadmill exercise after administration of furosemide experience less severe acidosis and slower onset of fatigue. To document changes in acid-base and ion balance during exercise following furosemide administration and to relate them to performance. Unassigned: 6 fit Thoroughbred horses received 0.5 mg/kg IV furosemide (F) or a placebo (C) in randomized crossover order 4 hours before galloping to fatigue on a treadmill at the speed equated with an oxygen demand of 1.15 X maximum oxygen consumption (V˙o2max). Arterial and mixed venous blood was sampled before treatment, preexercise, after 2-minute warm-up, at fatigue, and 1 minute postexercise. The pH, temperature-corrected Pco2, total CO2, and sodium, po...
Species-specific effects of spinal stiffness on gait and actuation-cost proxy in simulated cheetah and horse galloping. Cursorial quadrupeds employ distinct mechanical strategies for high-speed locomotion, with felids relying more strongly on axial motion than equids. The biomechanical role of spinal stiffness, however, is difficult to isolate experimentally because it is coupled to limb mechanics, morphology, and coordination. Here, we used comparative three-dimensional trajectory optimization to test how spinal stiffness influences gait mechanics and actuation-demand proxies in simulated cheetah-like and horse-like galloping. Homologous cheetah and horse models were evaluated across spinal-stiffness values, p...
How obstacle approach shapes rider biomechanics: Changes in kinematics, rein tension and stirrup forces during canter. Show jumping performance depends on the rider's ability to regulate the horse-rider system while maintaining postural stability under dynamic constraints. Although rider biomechanics has been investigated in various equestrian contexts, integrated analyses combining 3D kinematics with rein and stirrup kinetics during jump-approach remain limited. This study aimed to analyse how approaching an obstacle changes a rider's control strategies by comparing sitting canter, two-point canter in straight line without obstacle and jump-approach canter (defined here as the five strides before obstacle) in...
Equine nuclear medicine: Current state of play. Equine nuclear medicine provides functional information on bone turnover, perfusion, inflammation and tracer biodistribution. Its role has evolved from planar scintigraphy toward SPECT, PET and quantitative imaging. This review synthesised the historical foundations and contemporary state of equine nuclear medicine, with emphasis on racehorse and performance-horse applications. Methods: A PRISMA-aligned systematic narrative review and evidence map were undertaken. MEDLINE via PubMed, Web of Science Core Collection and SciQuest were searched, supplemented by reference-list screening, forward ci...
Risk factors for horse falls in British jump racing (2010-2023). Horse falls are an important safety and welfare concern in jump racing, as they are associated with an increased risk of equine fatality and injury, as well as jockey injury. Objective: To identify risk factors for horse falls in British jump racing. Methods: Retrospective cohort. Methods: All jump race starts made on British racecourses between January 2010 and April 2023 were considered. Available horse, race, racecourse, trainer and jockey data were collated and combined with faller data recorded in official databases. Horses that were 'brought down' by another horse were not considered a f...
Environmental and genetic effects on measured hock bone proportions in young Polish Warmblood horses undergoing performance test training for breeding horses. The hock bone proportions in young Polish Warmblood horses (69) were studied based on x-ray image measurements done during official breeding horse performance testing. Six measurements were used to identify 4 width and length proportion indices. The radiological examinations were done before and after horse training, which consists of work with or without the rider at walk, trot and canter (40-50min) with some light class (< 100cm) jumping (<12 jumps) 6 days a week. The training effect was investigated using analysis of variance (procedure MIXED, Statistical Analysis System). The statist...
Phenotypic Definition Influences Genetic Inference and Predictive Ability for Reining Performance in Quarter Horses Using Random Regression Models. Reining performance is influenced by subjectivity and competition structure, challenging genetic evaluation. This study estimated genetic parameters for reining performance in Brazilian Quarter Horses using random regression models (RRM) and evaluated how alternative phenotypic definitions affect genetic inference and predictive ability. A dataset comprising 21,165 longitudinal records from 1603 horses was analyzed, comparing within-group rank (RANK) and Blom-transformed rank (BLOM). Model comparison indicated that cubic RRM provided the best fit for both phenotypes. Heritability estimates wer...
In-Hand Training of Piaffe and Passage with Leg Stimulation: A Literature-Based Biomechanical Argument for Why This Method Fails to Produce True Collection. In-hand training of piaffe and passage via tactile leg stimulation (Handarbeit mit Touchieren) is widely practised in dressage, yet consistently produces horses that elevate their legs without achieving collection - a pattern termed Schenkelgänger (leg-movers) in classical German equitation. Based on published kinetic, kinematic, and electromyographic literature, this review argues that tactile leg stimulation activates the spinal nociceptive withdrawal reflex, an unloading movement mechanistically opposed to the elastic tendon rebound and ventral muscular chain activation that define true co...
“At what line does poor horsemanship cross the line to abuse, for you?” Social media discourse around high-profile incidents in the performance horse world reveals polarised views on animal welfare. High profile equestrians set an example for equestrian culture as well as public perception of horse sports. The present instrumental case study considers two incidents shared across social media. One is a dressage session featuring an elite equestrian striking at a horse 24 times with a long whip during a two-minute video. The second scenario shows a high-profile rider whipping and spurring a horse for a jump refusal during an international showjumping competition. We collected (and anonymised) 416 social media responses from a performance horse welfare equestrian group, general horse welfare...
Improving concussion assessment in jockeys: normative benchmarks and web-based tool for ImPACT interpretation. Despite horse racing's exceptionally high concussion risk, there is no jockey-specific ImPACT study. This work aimed to develop demographically adjusted, jockey-specific ImPACT norms and to evaluate complementary approaches to clinical classification. Unassigned: Retrospective baseline data from 663 Irish jockeys (2021-2024) were analyzed. Two normative methods were applied: (i) a univariate regression-based approach estimating expected scores for each cognitive domain independently, adjusting for age, sex, and education, with percentile-based classification; and (ii) a multivariate regression...
Sensory-driven neck-limb coordination mechanisms for walk-trot-gallop gait transitions. Quadruped animals exhibit various gait patterns and switch from one to another depending on their speed. These gait patterns involve complex whole-body coordination and are mainly controlled by a distributed neural network consisting of central pattern generators (CPGs) and peripheral sensory feedback. However, how these neural networks generate various types of whole-body coordination remains unclear. Here, we focus on horse locomotion and present a neural network model that reproduces walk-trot-gallop transitions by changing only a single parameter related to speed. This model uses ground re...
Activity type, sex, season, and number of prior starts are associated with proximal sesamoid bone fractures in Thoroughbred racehorses in South Korea. To identify risk factors associated with proximal sesamoid bone fractures in Thoroughbreds in South Korea. Unassigned: A retrospective case-control design with multivariable logistic regression was used. This study included 138 Thoroughbreds diagnosed with proximal sesamoid bone fractures following racetrack activity between 2020 and 2025. Additionally, 580 healthy Thoroughbreds (635 observations) with at least 1 racetrack activity during the same period were included as controls. Unassigned: A total of 7 risk factors were identified. Races or trials had markedly higher fracture risk than race...
When genes meet money: Genotype-by-prize interaction in Quarter Horses. Barrel racing performance reflects a complex interplay among genetic merit, rider ability, training strategies, and competition-specific conditions. In practice, events differ substantially in their economic scale, and prize money can serve as a proxy for management intensity, rider expertise, and selection pressure. Objective: This study investigated whether economic stratification, represented by total prize money per event, is associated with changes in (co)variance components for barrel racing time in Brazilian Quarter Horses. Methods: A reaction-norm model was implemented using 349,262 ra...
Genetic Indicators of Performance Resilience in Barrel Racing Quarter Horses. Resilience, defined as the capacity to maintain consistent performance under variable conditions, has emerged as a relevant breeding objective in livestock systems, yet remains largely unexplored in equine populations. The objectives of this study were to (1) derive indicators of resilience from longitudinal barrel racing time (BRT) records in Brazilian Quarter Horses, (2) estimate genetic parameters for these indicators, and (3) quantify their genetic relationships with BRT and accumulated career earnings (ACE). The dataset comprised BRT records from barrel racing events held between 2010 and...
An Investigation of the Role of Ridden Exercise, Including Application of the Ridden Horse Pain Ethogram, in Pre-Purchase Examinations of Sports Horses. Many horses undergo a pre-purchase examination (PPE) prior to acquisition by a new owner; however, despite evidence that lameness and canter dysfunction may only be apparent during ridden exercise, ridden exercises assessing gait quality is not a routine part of PPEs. The objectives were to determine the influence of the results of ridden exercise on decision-making concerning risk assessment for purchase and to establish the long-term performance of horses. Twenty-five sports horses underwent PPEs including ridden exercises to assess gait quality and to apply the Ridden Horse Pain Ethogram (R...
Smartphone-Based Technologies in Equine Sports Medicine: Supporting Athlete Management-A Review. Equine sports medicine is increasingly oriented toward objective, field-based monitoring systems that support both performance optimization and welfare assessment. In this context, smartphone-based technologies have emerged as accessible tools capable of integrating data acquisition, processing, and interpretation within a single platform. This narrative review aims to examine the role of smartphones in equine sports medicine, focusing on their function as standalone sensing devices and as gateways for wearable and external sensor systems. The analysis is based on a structured synthesis of cur...
Advanced paternal age is associated with reduced reproductive success and offspring racing performance in Australian Thoroughbred racehorses. Reproductive ageing influences fertility and offspring fitness across mammals. In humans and model organisms, paternal age has been associated with changes in sperm quality and genomic integrity, including oxidative stress, DNA damage, and epigenetic alterations; however, these mechanisms have not been directly examined in large equine populations. Thoroughbred racehorses provide a system to investigate paternal age effects at scale using detailed breeding records. In this retrospective observational study, with data from 35 retired stallions and 33,546 progeny, we assessed associations betwee...
Does the Distance Between Ground Poles Affect Limb, Spinal and Pelvic Kinematics in Horses When Walking In-Hand? Polework exercise is commonly used in equine training and rehabilitation; however, the influence of pole spacing on locomotor kinematics remains unclear. This study investigated the effects of pole spacing on limb, thoracolumbar and pelvic kinematics in horses walking in-hand. Eleven warmblood horses were assessed during overground walking and over five ground poles set at 85%, 100% and 105% of forelimb step length. Pole spacing did not significantly alter maximum fore- or hindlimb retraction; however, protraction-retraction range of motion (ROM) was reduced at 85% spacing. Forelimb ROM was re...
Polygenic Prediction of Equestrian Sport Discipline Among Horses Bred for Jumping and Dressage. Horses bred for different equestrian sports vary in physical, physiological and behavioural requirements. Characterising genetic markers associated with discipline provides an opportunity to improve identification of horses best suited to either jumping or dressage. Using a composite selection signals test, genomic regions under positive selection in German warmblood horses divergent for discipline were identified that contained lead SNPs proximal to or within genes with functions relevant to the requirements for jumping and dressage. Dressage genes function in tortuosity of movement (GRM5) an...
Differences in Stride Characteristics Between Lead and Wheel Horses in Competitive Chuckwagon Racing. In Chuckwagon racing, teams of four Thoroughbreds with two lead horses in front and two wheel horses directly behind pull a 600 kg wagon around a racetrack. Our study focuses on stride parameters that have previously retrospectively predicted impending injuries. We hypothesize that in aid of the initiation of the tight figure-of-eight turn at the start of the race, the more agile lead horses gallop with higher stride frequency (SF) and reduced stride length (SL), and that differences are exacerbated in the initial accelerative race segments. Methods: Speed, SF, and SL were quantified with glob...
