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Topic:Exercise
Exercise in horses encompasses the physical activities that horses engage in, either through natural behaviors or structured training programs. These activities impact a horse's musculoskeletal, cardiovascular, and respiratory systems, influencing overall health and performance. Exercise can vary in intensity, duration, and frequency, and its effects are studied to understand conditioning, endurance, and recovery processes in equines. Research in this field often focuses on the physiological adaptations to different types of exercise, the prevention of exercise-related injuries, and the optimization of training regimens for various equestrian disciplines. This page compiles peer-reviewed research studies and scholarly articles that explore the physiological, biomechanical, and health-related aspects of exercise in horses.
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...
Detecting and measuring respiratory events in horses during exercise with a microphone: deep learning vs. standard signal processing. Monitoring respiration parameters such as respiratory rate could be beneficial to understand the impact of training on equine health and performance and ultimately improve equine welfare. In this work, we compare deep learning-based methods to an adapted signal processing method to automatically detect cyclic respiratory events and extract the dynamic respiratory rate from microphone recordings during high-intensity exercise in Standardbred trotters. Results: Our deep learning models are able to detect exhalation sounds (median F1 score of 0.94) in noisy microphone signals and show promising r...
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...
The progression values of heart rate and biochemical plasma parameters during training of 3-years old warmblood stallions for breeding licensing. Physiological adaptation to training in young sport horses remains incompletely characterized, particularly during standardized preparation for breeding licensing. Objective: The aim of this study was to evaluate cardiovascular and plasma biochemical responses to acute exercise and long-term training in three-year-old Czech Warmblood stallions during standardized free jumping exercise. Methods: Thirteen Czech Warmblood stallions were monitored over a 112-day training period. Heart rate parameters (minimum, maximum, and mean) were recorded during standardized free jumping tests. Plasma biochemi...
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...
The effects of upper airway obstruction on oxygen consumption and ventilatory variables in Colombian criollo horses. While conditions associated with upper airway obstruction (UAO) are reported in Colombian Criollo horses, their effect on ventilation and performance is unknown. Objective: To investigate how oxygen consumption ($dot{rm V}$O2), ventilation,, and exercise-induced pulmonary hemorrhage (EIPH) are affected by UAO in horses performing at natural gaits. Methods: Twenty-three client-owned Colombian Criollo horses. Methods: A cross-sectional observational study assigned horses to a control (C), or UAO group after overground endoscopy. All horses performed a standardized submaximal exercise test while ...
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...
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...
Impact of collagen supplementation on the fecal microbiome of young horses in training. Intense training in athletic foals may alter fecal microbiota, highlighting the need for nutritional strategies such as hydrolyzed collagen supplementation. Objective: This study aimed to evaluate the effects of dietary hydrolyzed collagen on the fecal microbiome of weanlings in training. Methods: Twenty Mangalarga Marchador foals (206 ± 18 kg; 7 ± 1 mo age) were assigned to two groups: a supplemented group (50 g/day of hydrolyzed collagen for 180 days) and a control group. A completely randomized design with repeated measures over time was used. Foals were exercised five consecutive days pe...
Comparative cardiac histopathology and toxicology screens in horses succumbing to exercise-associated sudden cardiac death and control horses. Horse racing has faced increased scrutiny because of concerns about equine welfare and the safety of both equine and human participants. Sudden death (SD) in racehorses is relatively uncommon, and its causes are still unclear. Little information and considerable confusion exist regarding the clinical significance of microscopic lesions in the hearts of horses with SD. We examined the hearts of 29 horses that suffered exercise-associated sudden cardiac death (EASCD) and 29 clinically healthy control horses that were euthanized because of catastrophic musculoskeletal injuries. Acute cardiomyocyt...
Prevalence of cardiac arrhythmias in poorly performing horses. Electrocardiogram abnormalities are common in racehorses and can affect performance. Unassigned: This study aimed to analyze the results of electrocardiographic problems and measure the frequencies of various cardiac arrhythmias. Unassigned: This cross-sectional study was conducted between September 2023 and August 2024. Standard electrocardiographic recordings were obtained from all horses, and cardiac troponin levels were measured. Out of the 114 poorly performing adult horses, 10 cases without arrhythmia were considered the control group. Seventy-four horses (64.9%) had at least one type of...
Integrative Metabolomic and Echocardiographic Profiling Reveals Metabolic-Cardiac Structural Coupling in Yili Horses During Incremental Exercise. This study integrated echocardiography with widely targeted metabolomics to decipher how plasma metabolic dynamics couple with cardiac geometry in Yili horses during incremental treadmill exercise. Nine speed-type horses underwent a graded exercise test (6% incline; 0 to 9 m/s). Jugular venous blood samples collected at rest (0 m/s) and at 3, 5, 7, and 9 m/s were profiled by LC-MS, and Pearson correlation analysis was applied to relate differentially expressed metabolites (DEMs) to twenty echocardiographic structural indices. A core set of 314 shared DEMs (124 upregulated, 190 downregulated) w...
Effects of three equine-related training modalities on inhibitory control in children aged 7-8 years: an exploratory randomized controlled trial. Horseback riding training (HRT), horseback riding simulator training (HRST), and horse companion training (HCT) can improve physical fitness, cognitive abilities, and emotional well-being. However, their effects on inhibitory control (IC) are not well studied. Unassigned: This exploratory randomized controlled trial examined the effects of HRT, HRST, and HCT on IC in children aged 7-8 years and analyzed brain neural mechanisms using functional near-infrared spectroscopy (fNIRS). Twenty-four children aged 7-8 years from Maple Leaf International School-Xi'an were randomly divided into three grou...
Association Between Vaquejada Practice and Biomarkers of Oxidative Stress, Inflammation, and Muscle Damage in Quarter Horses. Vaquejada (VQ) is a traditional Brazilian sport demanding high performance from Quarter Horse (QH) athletes. This study aimed to identify modifications in hematological, biochemical, inflammatory, and oxidative stress biomarkers associated with VQ training, comparing conditioned and non-conditioned horses. Blood samples were collected at rest from 70 healthy QH horses: 60 athletes (VQ-conditioned athlete group-AG) and 10 sedentary controls (breeding horses-CG). Using Linear Mixed Models alongside comprehensive hematological and biochemical analyses, the study found that AG horses exhibited an ...
New Insights in Heart Rate Variability Through Non-Linear Methods for Conditioning Assessment in Horses. Chronic exercise induces significant adaptations across multiple physiological systems due to increased metabolic demand. Heart rate variability (HRV) has emerged as a prominent, non-invasive method for monitoring fitness, enabling inference of sympathovagal balance from time-series variations in electrocardiograms. Notably, nonlinear analyses have a strong capacity to detect and estimate complex mechanisms underlying cardiovascular modulation. In this context, HRV was evaluated in the time and frequency domains, as well as through nonlinear methods, in 12 young purebred Arabian horses undergo...
Management factors associated with abnormal behaviours in rural Chilean working horses. Working horses remain essential for rural livelihoods in Chile and across Latin America. However, housing and management conditions in these systems are poorly characterised, underscoring the need for standardised welfare assessments to generate evidence and guide targeted improvements. Objective: To estimate the prevalence of abnormal behaviours in rural working horses and to examine associations with management and housing related factors. Methods: Cross-sectional observational study. Methods: Seventy-seven working horses from a rural area of the Papudo commune (Valparaíso Region, Chile) we...
Cardiac Cost During Submaximal Exercise as a Practical Monitoring Tool in French Standardbred Trotters: Short-Term Reproducibility of Non-Invasive Field-Derived Indicators. Routine monitoring in racehorses requires indicators that are reproducible and practical under real training conditions. This observational study evaluated the short-term reproducibility of cardiovascular and speed indicators in French Standardbred trotters, with a particular focus on cardiac cost (CC), defined as the ratio of heart rate to speed (beats·m). The full dataset comprised 483 sessions from 60 trotters and was used to describe age-related patterns. For reproducibility analyses, consecutive monitored sessions within the same horse were grouped into follow-up blocks when the interval...
Electromyographic activity of equine abdominal muscles during single and double riding in hippotherapy. Background: Hippotherapy is a therapeutic intervention that uses the horse as a biomechanical and sensorimotor agent to promote rehabilitation in individuals with physical and neurological disabilities. Depending on patient needs, riding may be performed with a single rider or with double riding, in which a therapist accompanies the practitioner on the horse. However, the effects of these riding configurations on equine trunk muscle activity remain poorly understood, despite their relevance for both horse welfare and the quality of therapeutic stimuli delivered to the patient.Methods: Nine cli...
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 ...
Effects of an Equine-Assisted Riding Program on Motor Performance, Movement Quality, and Well-Being Among Young Inmates. Equine-assisted programs have been shown to promote psychosocial outcomes, but quantitative evidence of motor benefits in correctional settings is scarce. Objective: The present study examined the effects of a one-week equine-assisted riding program on riding performance, movement quality, and well-being among young inmates in an open German prison. Methods: Ten male participants (24.5 ± 0.71 years) completed a five-day program combining practical riding exercises, cooperative activities, and guided reflection. Riding performance was assessed using standardized expert video ratings based on t...
The effect of dynamic mobilization exercises and therapeutic trunk exercises on superficial epaxial and hypaxial muscle activity in horses. Equine back rehabilitation commonly integrates dynamic mobilization exercises (DME), including DME to the chest (DMEChest) and DME to the hip (DMEHip), and therapeutic trunk (TTE) exercises, including pelvic rounding (Rounding), and lateral tail pulls (LatTail). However, limited evidence supports their use for selectively activating trunk muscles. Objective: To quantify and compare superficial epaxial and hypaxial muscle activity during selected DMEs and TTEs using surface electromyography (sEMG). Increased muscle activity was hypothesized across exercises, specifically in external abdominal o...
Transcriptomic and Proteomic Analysis of the Skeletal Muscle Revealed the Effects and Mechanism of Mulberry Leaf Flavonoids on Alleviating Exercise-Induced Muscle Damage in Mongolian Horses. The scientific evidence regarding the use of plant-derived extracts to alleviate exercise-induced muscle damage in horses remains limited. Mulberry leaf flavonoids (MLFs) are the primary bioactive constituents of a traditional medicinal plant and are potent antioxidants. The aim of this study was to investigate the protective effects of MLFs against exercise-induced muscle damage. In this study, twelve Mongolian horses were used in a 3 × 3 Latin square design to investigate the protective effects of MLFs. Our results showed that high-intensity exercise negatively impacted the immune status, m...
Race and Final-600 m Speed Response to Distance and Track Condition in Thoroughbred Flat Racing. The temporal and spatial distribution of speed varies with race distance and track condition, influencing where mechanical demand peaks within a race. This study aimed to describe variation in race-day speed with race distance and track condition. Race-day data from 18 flat racing seasons on turf and synthetic surfaces (2007/8-2024/25, = 200,601 starts in 3389 races) were used to examine initial speed (from barriers until the final 600 m), final-600 m speed, race distance (m), turf track condition score (TCS, 1-10), horse rating and carried weight (kg) using a general linear model. The patter...
Physical Therapy Intervention With Hippotherapy (HPOT) Affects Balance Control in the Elderly: A Randomized Controlled Trial. Aging is characterized by a decline in functional abilities, strength, balance, flexibility, agility, and coordination due to neurological and muscular changes. Hippotherapy (HPOT) has been recognized for its physical and psychological benefits for older adults. Hence, this study aimed to investigate the effects of hippotherapy on balance in elderly individuals. The novelty lies in using the Biodex Balance System SD for dynamic balance assessment in healthy elderly without neurological disorders. Unassigned: We recruited elderly men aged 60 to 70 who had independent mobility and medical cleara...
Clodronate disodium reduced TRAP5b independent of affecting other systemic biomarkers of bone resorption or formation in yearling, exercising Quarter Horses. Clodronate disodium (CD), a bisphosphonate, modulates bone metabolism. Though extra-label use in juvenile horses is anecdotally reported, impacts on skeletal development are unknown. The objective was to determine the effects of CD on systemic markers of bone turnover in yearling horses undergoing exercise, hypothesizing that biomarkers of bone resorption would decrease while biomarkers of bone formation would not change, and that repeat CD treatments would have greater effect. To test this, 32 yearling Quarter Horses were used in a 168-d trial. Horses were stratified by age (500 ± 13 d),...
Comparison Between Inertial Sensor and Video-Based Detection of Spatiotemporal Limb Movement Parameters During Equine Swimming. Equine swimming is increasingly used for injury prevention and rehabilitation, but objective analysis of movement during swimming remains limited compared to land-based locomotion. Spatiotemporal parameters are essential for evaluating therapeutic outcomes, yet capturing these parameters is technically challenging due to difficulties in observing limb motion in water. Inertial sensors, already widely applied in equine science, offer a promising solution for measuring swimming kinematics objectively. The objective of this study was to evaluate the reliability of inertial sensors placed on equin...
Effects of shoeing on forelimb biomechanics in walking horses. Hoof trimming and shoeing techniques are used to manage and prevent equine limb injuries. However, quantitative studies comparing the effects of different shoeing techniques on equine joint biomechanics over the full gait cycle are lacking. Objective: To measure and compare joint motion and net torques at the distal forelimb joints when horses walk overground unshod, with a standard flat shoe, and with a rocker shoe. Methods: In vivo study. Methods: Gait data were recorded from 12 sound horses during walking. Three shoeing conditions were tested: unshod, flat shoe, and rocker shoe. Data were r...
Riding toward better math: executive functions mediate the link between horseback activities and children’s mathematical achievement. Research directly examining the cognitive and academic correlates of horseback-riding in childhood remains limited. This study examined the relationships among monthly horseback-riding hours, executive function (EF), and mathematics achievement in children aged 7–9 years. A sample of 262 participants from Saudi Arabia was assessed using parent interviews and official educational records, with data collected from sports clubs and horse stables. EF was modeled as a latent construct—including organization and planning, working memory, emotion regulation, self-control, and motivation—`using ...
Exercising electrocardiograms from Thoroughbred racehorses with exercise associated sudden death. Exercise associated sudden death (EASD), defined as a fatal collapse in a closely monitored and previously presumed clinically healthy horse that occurs during exercise or within approximately 1 h after exercise, is disproportionately more common in equine than in human athletes. Objective: To describe ECGs from EASD cases in Thoroughbred racehorses. Methods: Retrospective case series. Methods: An international call for potential cases was made through direct contact with relevant racing authorities requesting that trainers of horses which had experienced EASD consent to researchers gaining ac...
Post exercise hydration responses to an electrolyte, glycerol, and creatine supplement in horses: a preliminary study. Electrolyte supplementation is utilized to support hydration in horses. However, limited data are available on formulations that include osmotically active compounds such as glycerol and creatine. These additional ingredients may enhance fluid retention, yet their physiologic effects in equine athletes have not been evaluated. This preliminary study assessed hematologic responses, body mass recovery, and voluntary water intake following moderate exercise with and without supplementation using a commercially available hydration supplement containing electrolytes, creatine, and glycerol. Six hea...
