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Topic:Sport Horses
Sport horses are a subset of the equine population specifically bred and trained for competitive disciplines such as dressage, show jumping, eventing, and racing. These horses are characterized by their athleticism, agility, and endurance. The management and training of sport horses require specialized knowledge to optimize their performance and maintain their health. Factors such as genetics, nutrition, exercise physiology, and veterinary care are integral to their development and success in various sports. This page compiles peer-reviewed research studies and scholarly articles that explore the breeding, training methodologies, performance evaluation, and health management of sport horses within the context of equine sports science.
Distal limb wraps produce gait- and material-dependent post-exercise changes in stride timing and limb kinematics in horses. Distal limb wraps are widely used during equine exercise, but their effects on post-exercise kinematics and movement symmetry remain poorly defined. Objective: To determine whether elastic and fleece distal limb wraps alter temporal stride variables, distal limb kinematics, and axial movement symmetry after standardised round-pen exercise. Methods: Six adult horses completed a prospective crossover study with three conditions: no wraps, elastic wraps, and fleece wraps. Wraps were applied bilaterally to all distal limbs at an initial pressure of 20 mmHg. After 20 minutes of free round-pen exerc...
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...
Veterinarian and breeder perspectives surrounding ovum pick-up and intracytoplasmic sperm injection in mares: A survey study. There is an ethical debate about the application of ovum pick-up (OPU) and intracytoplasmic sperm injection (ICSI) in mares. Objective: To survey the opinions of equine veterinarians and breeders of sport horses on the ethics of using OPU-ICSI in mares. Methods: Cross-sectional descriptive study. Methods: Three surveys were distributed. The first targeted breeders ('Breeder Survey') who were actively involved in sport horse breeding. The second targeted veterinarians performing OPU ('OPU-Reprovets Survey'). The third targeted general equine practitioners ('Practitioner Survey'). There were six...
An exploratory comparative analysis of kinematic characteristics in two elite Chinese show jumping riders. Three-dimensional rider kinematics across jumping phases and obstacle heights remain sparsely documented in elite Chinese show jumping. This exploratory case study examined angle-related kinematic characteristics in two elite Chinese riders under field-based jumping conditions. Unassigned: Three-dimensional video-based kinematic analysis was performed using the Simi Motion 3D system with direct linear transformation (DLT)-based camera calibration and three-dimensional reconstruction of selected anatomical landmarks. Two elite male riders rode the same experienced horse over the second vertical...
Genetic parameter estimation of novel international show-jumping indicators in horses. Genetic improvement of show-jumping competition results has a clear breeding goal which is to produce horses that can repeatedly clear technically demanding courses at maximum height, resulting in placement results. However, how to achieve this, and thus how to accurately choose breeding candidates, is far from straightforward due to the heterogeneity of competition outcomes. In this study, we analyzed Fédération Équestre Internationale (FEI) competition records from 19,232 horses together with pedigree data to evaluate novel phenotypes suitable for international genetic evaluations. Tradit...
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...
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...
Effects of IGF1 Knockdown and Overexpression on the Phenotype and Function of Equine Primary Skeletal Muscle Cells. Skeletal muscle serves as the direct executor of movement, and the proliferation and migration capacities of its constituent cells represent the key physiological foundation determining equine endurance and speed. Previous whole-transcriptome analysis has shown that Insulin-like Growth Factor 1 () is significantly upregulated in following racing and is involved in the PI3K-Akt signaling pathway; however, its specific regulatory mechanism in equine skeletal muscle cells remains unclear. This study utilized primary equine skeletal muscle cells as a model. By constructing an overexpression plas...
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...
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...
Surface electromyography and joint angle kinematics of horses at walk and trot on a treadmill. This study aimed to evaluate electromyographic and kinematic parameters of the thoracic and pelvic limbs of horses at a walk and trot on a treadmill. Eleven Brazilian Sport Horses trained for Eventing were assessed in a completely randomized design under two conditions: walk (1.8 m/s) and trot (3.6 m/s). Horses were evaluated on a high-speed treadmill using surface electromyography (sEMG) and kinematic analysis. sEMG was performed bilaterally on the mm. extensor carpi radialis and mm. flexor carpi ulnaris; bilateral muscles of the pelvic limb: mm. tensor fascia latae and mm. biceps femoris u...
Prevalence of insulin dysregulation in a sport horse population as determined by traditional and stall-side testing. The prevalence of insulin dysregulation (ID) has not been investigated in sport horses. Stall-side insulin assays offer convenience but need further validation. Objective: To determine the prevalence of and risk factors for ID in a sport horse population using an oral sugar test (OST) and assess agreement between stall-side and validated laboratory assays for insulin quantification. Methods: Prospective cross-sectional study. Methods: One hundred eighty sport horses presenting for orthopaedic evaluation at a university hospital (N = 140) or local farms (N = 40) were tested for ID using...
Untargeted Sweat Metabolomics and Targeted Plasma Amino Acid Profiling Reveal Dynamic Metabolic Remodeling During Conditioning in Yili Horses. Training induces sweat morphology changes in horses from muddy sweat (MS) to foamy sweat (FS) and clear sweat (CS), reflecting physiological adaptation. However, the metabolic mechanisms linking sweat phenotypes to systemic amino acid dynamics remain unclear. This study integrated sweat untargeted metabolomics and plasma amino acid targeted metabolomics to reveal coordinated metabolic remodeling. Six 2-year-old horse stallions underwent 10-week training. Plasma and sweat were sampled pre- and post-race at each stage. LC-MS/MS and UHPLC-MS/MS were used for sweat metabolome and plasma amino aci...
Effect of exercise-related nasopharyngeal disorders on upper airway function in racehorses. Exercise-related upper respiratory tract (URT) disorders are frequently diagnosed in racehorses. Treatment recommendations are routinely based on subjective assessment of clinical evaluation and exercising endoscopy findings. Objective: To objectively investigate how palatal instability (PI), intermittent dorsal displacement of the soft palate (iDDSP), alar fold collapse (AFC), and nasopharyngeal collapse (NPC) affect upper airway function during exercise in racehorses. Methods: Observational study with case-control comparisons. Methods: Inspiratory and expiratory tracheal pressures (cmHO) wer...
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...
Mitochondrial Adaptations to Exercise Training in Equine Skeletal Muscle: A Narrative Review. The horse represents one of the most physiologically specialized athletic mammals, capable of sustaining both high-intensity and prolonged exercise. Central to this remarkable performance capacity is the metabolic adaptability of skeletal muscle and its mitochondrial network. This narrative review synthesizes current evidence from equine, human, and rodent studies on exercise-induced mitochondrial remodeling in equine skeletal muscle. A comprehensive literature search was conducted across PubMed, Web of Science, and Scopus using terms related to equine exercise physiology, mitochondrial biolog...
Towards a Comprehensive Screening Approach for Detecting Gene Doping in Racehorses and Sport Horses by Targeting Common and Intrinsic Plasmid Sequences. The evolution of biotechnology and gene therapy has unfortunately facilitated the emergence of gene doping. Those misused applications are prohibited in equestrian sports (International Equestrian Federation (FEI)) and in horseracing (International Federation of Horseracing Authorities [IFHA]), reflecting major concerns regarding horse welfare and the integrity of competitions. Among the biotechnological tools that could be misused, eukaryotic expression plasmids represent a particular threat due to their ease of production, customisable design and ability to carry a wide range of performance ...
Aqua training promotes changes of skeletal muscle mass in show jumping horses. The correct prescription of aquatic treadmill training for equine athletes depends on understanding the muscular changes generated by working in the water. Objective: The aim of this study was to test the hypothesis that the inclusion of a water treadmill in a routine training protocol would alter muscle mass of show jumping horses. Methods: Six fit-to-compete horses were trained for 10 weeks with a water treadmill (twice a week, 20 minutes, water level at the carpus), in addition to regular physical exercise. Body composition, infrared thermography (IRT) of propulsive muscles (m. brachiocepha...
Evaluation of doppler indexes of the lateral palmar digital artery in lame sport horses. Although lateral palmar digital artery (LPDA) flow velocity does not differ between forelimbs, horses with lameness typically reduce loading of the affected limb during the weight-bearing phase. This study aimed to assess whether Pulsed-Wave (PW) Doppler indices of the (LPDA) blood flow differ between the two forelimbs in horses with unilateral forelimb lameness, and whether these differences correlate with lameness severity. Twenty-seven lame and 15 healthy horses were enrolled. All Doppler ultrasonographic examinations were performed by a single operator, blinded to both the presence or abse...
Conflict Behaviour Frequency During Show Jumping Competitions: A Practical Study. With society's ever-growing concern for animal welfare, the equestrian industry has focused on passing and enforcing new rules to protect the main athlete, the horse. In jumping, courses go by quickly, with judges using the occurrence of conflict behaviours to assess any welfare breach. This study aimed to evaluate the overall frequency of such behaviours in Brazilian Sport Horses during elite show jumping competitions in Brazil. Conflict behaviour displays were analyzed in 120 different horse-rider pairs in jumping competitions in Brazil. All videos were observed at a slowed-down speed, with ...
Paroxysmal atrial fibrillation-like bursts in racehorses: do they affect speed and performance? A case control study. Paroxysmal atrial fibrillation (pAF) occurs sporadically in horses and has been implicated in poor performance. Diagnosis in large numbers of horses has previously relied on post-exercise ECGs. Objective: Describe pAF-like bursts detected during exercise and determine their effect on speed, stride, and racing performance. Methods: Retrospective case control study, evaluating records of exercising ECG consultations referred to a specialist practice to identify horses with pAF-like bursts. Controls were selected from the same population as racehorses with normal exercising ECGs. Results: Eleven ...
Synchronization dynamics between rider and saddle motion across gaits revealed by IMU analysis. Effective rider-horse coordination is essential for performance and welfare, yet objective, field-based quantification of rider-saddle synchronization across gaits remains limited. Objective: To quantify dynamic synchronization between rider motion and saddle motion (as a proxy for horse trunk oscillations) across walk, trot, and canter using a minimal inertial measurement unit (IMU) setup, and to determine whether synchronization differs between rider body segments. Methods: Two experienced riders (8-20 years riding experience) rode their own or familiar warmblood horses (n = 2; age 6-14 year...
A Comparison of the Performance of Horses from the International WBFSH Rankings in Dressage, Jumping and Eventing Based on Their Sex, Age, Proportion of Thoroughbred Genes and Affiliation to the Studbook. The aim of the research was to assess how the selected factors could influence the performance of the best horses in dressage, jumping and eventing competitions. The research was based on the Studbook Rankings published by the World Breeding Federation for Sport Horses from 2019 to 2024. Our analysis shows a statistically significant effect of each of the observed factors in at least one discipline. The leading factor in all disciplines was studbook affiliation. The Belgian warmblood, German Sport Horse, Hanoverian, Royal Dutch Sport Horse, Oldenburg and Westphalian studbooks are represented a...
Edema and Structural Remodeling in Equine Suspensory Ligament Injury: A Severity Gradient Associated with Microvascular Dysfunction. Suspensory ligament injury is a major cause of lameness in sport horses, yet its underlying mechanisms remain incompletely understood. The aim of this study was to characterize histopathological alterations of the equine suspensory ligament and to evaluate their association with imaging features. A comparative descriptive study was performed on sport horses with forelimb lameness, combining clinical evaluation, ultrasonography, magnetic resonance imaging, and histopathological analysis. Ligament samples were collected post-mortem from anatomically defined regions selected based on imaging find...
Influence of riders’ physical activity on improving seat balance in the context of horse welfare – A pilot study. This study aimed to investigate the impact of gym exercises for riders on their posture and the subsequent effect on reducing discomfort for their horses during training, using electronic pressure sensors. The study involved 20 warmblood horses aged 5-10 years, regularly ridden under saddle, and four riders of similar height and body weight. The study group was divided into a control group (10 horses) and an experimental group (10 horses). The horses were trained 5 days a week for 60 days in total. Riders trained three times a week for approximately 60 minutes. The exercises were designed to i...
Money, morality, and nationalism: the contested sponsorship of the Falsterbo horse show. In early 2025, the Falsterbo Horse Show entered a title sponsorship agreement with Al Shira'aa Stables in the United Arab Emirates, prompting extensive Swedish media coverage and strong public reactions. This controversy offers an opportunity to examine how sport sponsorship becomes a site for moral and geopolitical boundary-making. Drawing on a Foucauldian understanding of discourse as a meaning-making practice, the study analyses 210 Swedish newspaper articles published between February and April 2025 to explore how power/knowledge operates through language and how sponsorship is discursivel...
Haplotype GWAS in swedish warmblood horses for conformation and jumping traits. The aim of this study was to better understand the genomic architecture behind performance-related traits in sport horses. In this study, we conducted a haplotype-based genome-wide association study (GWAS) for 36 conformation and free jumping phenotypes recorded during routinely conducted young horse evaluation tests involving 380 Swedish Warmblood (SWB) horses. The horses were evaluated by expert judges using both traditional and linear evaluation systems. All samples were genotyped using the 670K Affymetrix® Axiom® Equine Genotyping Array, haplotypes were first phased, and haplotype blocks...
Pedigree Investigation of Polish Sport Horses in Show Jumping: Insights for Global Breeding. The aim of this study was to characterise the pedigree and genetic structure of Polish Sport Horses competing in Grand Prix show jumping events and to assess the implications for international sport horse breeding. Pedigrees of 513 horses were analysed, encompassing a total of 18,836 individuals over a maximum of 16 generations. The completeness and depth of the pedigrees allowed for a reliable estimation of inbreeding coefficients and genetic diversity. The mean inbreeding coefficient was low (0.645%), yet 82% of the horses exhibited some degree of inbreeding. The greatest loss of genetic var...
Physical vs. Behavioral Clinical Signs in Horses with Squamous and Glandular Gastric Ulcers. Equine Gastric Ulcer Syndrome is a highly prevalent condition, yet its clinical diagnosis remains challenging due to the nonspecific nature of many associated signs. The relationship between the anatomical location of gastric ulcers and clinical presentation is still poorly defined. This retrospective study aimed to evaluate the association between gastric ulcer location and the clinical signs observed in horses. Medical records of 52 horses diagnosed with gastric ulcers by gastroscopy were retrospectively reviewed. Clinical signs were classified as physical, behavioral, or mixed, and ulcer lo...
