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Topic:Jockeys

The relationship between jockeys and horses is a dynamic and complex aspect of equine sports, involving both human and animal athletes. Jockeys are professional riders who guide horses in competitive racing events, requiring a deep understanding of equine behavior, physiology, and racing strategy. The interaction between jockeys and horses is critical for performance, as it involves communication, trust, and precise coordination. Various factors such as weight management, riding techniques, and safety protocols are integral to this partnership. This page compiles peer-reviewed research studies and scholarly articles that explore the biomechanics of jockey riding, the impact of jockey weight on horse performance, and the psychological and physiological interactions between jockeys and horses in the context of competitive racing.
Descriptive analysis of longitudinal endoscopy for exercise-induced pulmonary haemorrhage in Thoroughbred racehorses training and racing at the Hong Kong Jockey Club – letter.
Equine veterinary journal    January 19, 2015   Volume 47, Issue 3 374-375 doi: 10.1111/evj.12388
Preston S, Riggs CM.No abstract available
Caudal lumbar vertebral fractures in California Quarter Horse and Thoroughbred racehorses.
Equine veterinary journal    October 9, 2014   Volume 47, Issue 5 573-579 doi: 10.1111/evj.12334
Collar EM, Zavodovskaya R, Spriet M, Hitchens PL, Wisner T, Uzal FA, Stover SM.To gain insight into the pathophysiology of equine lumbar vertebral fractures in racehorses. Objective: To characterise equine lumbar vertebral fractures in California racehorses. Methods: Retrospective case series and prospective case-control study. Methods: Racehorse post mortem reports and jockey injury reports were retrospectively reviewed. Vertebral specimens from 6 racehorses affected with lumbar vertebral fractures and 4 control racehorses subjected to euthanasia for nonspinal fracture were assessed using visual, radiographic, computed tomography and histological examinations. Results: ...
A decision tree model for the implementation of a safety strategy in the horse-racing industry.
Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention    September 12, 2014   Volume 21, Issue 2 109-114 doi: 10.1136/injuryprev-2014-041223
Hitchens PL, Curry B, Blizzard CL, Palmer AJ.The profession of a horse-racing jockey is a dangerous one. We developed a decision tree model quantifying the effects of implementing different safety strategies on jockey fall and injury rates and their associated costs. Methods: Data on race-day falls were obtained from stewards' reports from August 2002 to July 2009. Insurance claim data were provided by Principal Racing Authorities and workers' compensation authorities in each jurisdiction. Fall and claim incidence data were used as baseline rates. The model considered (1) the status quo, in which policy was unchanged; and (2) compared it...
A reaction norm model approach to estimate the genetic effect of temperature on sportive performance of trotter horses.
Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie    September 10, 2014   Volume 132, Issue 3 256-267 doi: 10.1111/jbg.12118
Gómez MD, Menéndez-Buxadera A, Valera M, Molina A.The performance results of Spanish Trotter Horses were merged with the information from the nearest official weather stations, to estimate the effects of temperature (T) on speed during the day of the race. The resulting data set included: 104 125 individual results from 7653 races with 3772 participant horses and driven by 1402 jockeys. After a classical repeatability animal model in which the effects of T were assumed null, a total of five different random regression models (RRM) with the same fixed part were applied in a parsimonious nested process in which the (co)variance components for ...
Handedness of whip use by Australian Jockeys.
Australian veterinary journal    June 27, 2014   Volume 92, Issue 7 231-234 doi: 10.1111/avj.12196
Knight PK, Hamilton NA.To compare handedness of whip use by Australian jockeys in Melbourne (where racing is counterclockwise) and Sydney (where racing is clockwise). Methods: Photographs of finishes of Thoroughbred horse races in Melbourne and Sydney were examined. Where whip use was clearly visible, the venue, the hand in which the whip was held and the names of the jockey and the horse were determined. Comparisons of whip hand use between cities were made using the Chi-squared test. Results: A total of 771 identifications were made, 328 from Melbourne and 443 from Sydney, representing 78 jockeys and 506 horses. R...
Weight-making strategies in professional jockeys: implications for physical and mental health and well-being.
Sports medicine (Auckland, N.Z.)    April 1, 2014   Volume 44, Issue 6 785-796 doi: 10.1007/s40279-014-0169-7
Wilson G, Drust B, Morton JP, Close GL.Professional jockeys are unique amongst weight-making athletes given that they face the requirement to make weight daily. Furthermore, unlike other weight-limited sports, jockeys who have engaged in rapid weight loss cannot fully rehydrate prior to competition because post-race weight must not be more than 1 kg different to their pre-race weight. As such, jockeys have reported a variety of acute and chronic methods to make weight that include sporadic eating, caloric restriction, diuretics, laxatives, vomiting and fluid restriction as well as regular use of sweat suits and saunas. Typical dai...
Applied load on the horse’s back under racing conditions.
Veterinary journal (London, England : 1997)    September 27, 2013   Volume 198 Suppl 1 e88-e92 doi: 10.1016/j.tvjl.2013.09.039
Geser-von Peinen K, Latif SN, Wiestner T, Bitschnau C, Renk B, Weishaupt MA.With the intention of limiting the weight on horses' backs and guaranteeing maximal freedom of movement, commonly used racing saddles are small and have minimal cushioning. Poor saddle cushioning may limit performance or even affect soundness of the back. The aim of this study was to measure the pressure under an average racing saddle ridden by a jockey at racing speed. Saddle pressure using a medium-sized racing saddle (length 37 cm, weight 450 g) was measured in five actively racing Thoroughbred horses. All horses were trained at the same facility and ridden by their usual professional jocke...
Rapid weight-loss impairs simulated riding performance and strength in jockeys: implications for making-weight.
Journal of sports sciences    September 9, 2013   Volume 32, Issue 4 383-391 doi: 10.1080/02640414.2013.825732
Wilson G, Hawken MB, Poole I, Sparks A, Bennett S, Drust B, Morton J, Close GL.Despite the performance concerns of dehydration in other sports, there are currently no data on the effects of rapid weight-loss on the physical and cognitive performance of jockeys in a sport-specific context. In a randomised crossover design, eight Great Britain (GB) male licensed jockeys were assessed for chest strength, leg strength, simulated riding performance (assessed by maximum pushing frequency on a mechanical riding simulator during the final two furlongs of a simulated 2 mile race) and simple reaction time after performing 45 min of exercise, during which euhydration was maintained...
Modelling biomechanical requirements of a rider for different horse-riding techniques at trot.
The Journal of experimental biology    June 21, 2013   Volume 216, Issue Pt 10 1850-1861 doi: 10.1242/jeb.070938
de Cocq P, Muller M, Clayton HM, van Leeuwen JL.The simplest model possible for bouncing systems consists of a point mass bouncing passively on a mass-less spring without viscous losses. This type of spring-mass model has been used to describe the stance period of symmetric running gaits. In this study, we investigated the interaction between horse and rider at trot using three models of force-driven spring (-damper)-mass systems. The first system consisted of a spring and a mass representing the horse that interact with another spring and mass representing the rider. In the second spring-damper-mass model, dampers, a free-fall and a forcin...
Bone health of apprentice jockeys using peripheral quantitative computed tomography.
International journal of sports medicine    January 31, 2013   Volume 34, Issue 8 688-694 doi: 10.1055/s-0032-1333213
Greene DA, Naughton GA, Jander CB, Cullen SJ.Our aim was to use Peripheral Quantitative Computed Tomography (pQCT) to assess the bone health of male and female apprentice jockeys and age- and sex-matched peers. 2 groups of 25 young adults (n=50) (age range 15-38 years) were comprised of male and female apprentice jockeys, and male and female controls. We used pQCT to measure the distal tibia and distal radius. After covarying for weight and limb length, apprentice jockeys displayed less tibial cortical area and lower strength strain index at 14% distal shaft, 38% mid shaft and 66% proximal sites measured distally than controls (p=0.001)....
An alternative dietary strategy to make weight while improving mood, decreasing body fat, and not dehydrating: a case study of a professional jockey.
International journal of sport nutrition and exercise metabolism    June 14, 2012   Volume 22, Issue 3 225-231 doi: 10.1123/ijsnem.22.3.225
Wilson G, Chester N, Eubank M, Crighton B, Drust B, Morton JP, Close GL.Professional jockeys are unique among weight-making athletes, as they are often required to make weight daily and, in many cases, all year-round. Common methods employed by jockeys include dehydration, severe calorie restriction, and sporadic eating, all of which have adverse health effects. In contrast, this article outlines a structured diet and exercise plan, employed by a 22-yr-old professional National Hunt jockey in an attempt to reduce weight from 70.3 to 62.6 kg, that does not rely on any of the aforementioned techniques. Before the intervention, the client's typical daily energy intak...
An altered hormonal profile and elevated rate of bone loss are associated with low bone mass in professional horse-racing jockeys.
Journal of bone and mineral metabolism    April 11, 2012   Volume 30, Issue 5 534-542 doi: 10.1007/s00774-012-0354-4
Dolan E, McGoldrick A, Davenport C, Kelleher G, Byrne B, Tormey W, Smith D, Warrington GD.Horse-racing jockeys are a group of weight-restricted athletes, who have been suggested as undertaking rapid and extreme weight cycling practices in order to comply with stipulated body-mass standards. The aim of this study was to examine bone mass, turnover and endocrine function in jockeys and to compare this group with age, gender and body mass index matched controls. Twenty male professional jockeys and 20 healthy male controls participated. Dual energy X-ray absorptiometry scans and early morning fasting blood and urine samples were used to measure bone mass, turnover and a hormonal profi...
The association between jockey experience and race-day falls in flat racing in Australia.
Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention    April 5, 2012   Volume 18, Issue 6 385-391 doi: 10.1136/injuryprev-2011-040255
Hitchens PL, Blizzard CL, Jones G, Day LM, Fell J.Apprentice thoroughbred racing jockeys have a higher fall rate than their more experienced counterparts. The authors describe rates of occurrence and investigate risk factors for falls among less-experienced thoroughbred flat racing jockeys in Australia who commenced their race riding career between August 2002 and July 2009. Methods: Data on race-day falls were extracted from stewards' reports. Denominator data were provided by Racing Information Services Australia on races conducted in Australia. HRs were estimated using time-to-event (survival analysis) methods. Results: Factors found to be...
Whip use by jockeys in a sample of Australian Thoroughbred races–an observational study.
PloS one    March 19, 2012   Volume 7, Issue 3 e33398 doi: 10.1371/journal.pone.0033398
McGreevy PD, Corken RA, Salvin H, Black CM.The use of whips by jockeys is an issue. The current study viewed opportunistic high-speed footage of 15 race finishes frame-by-frame to examine the outcomes of arm and wrist actions (n = 350) on 40 horses viewed from the left of the field. Any actions fully or partially obscured by infrastructure or other horses were removed from the database, leaving a total of 104 non-contact sweeps and 134 strikes. For all instances of arm actions that resulted in fully visible whip strikes behind the saddle (n = 109), the outcomes noted were area struck, percentage of unpadded section making conta...
Risk factors for race-associated sudden death in Thoroughbred racehorses in the UK (2000-2007).
Equine veterinary journal    December 1, 2011   Volume 44, Issue 4 459-465 doi: 10.1111/j.2042-3306.2011.00496.x
Lyle CH, Blissitt KJ, Kennedy RN, Mc Gorum BC, Newton JR, Parkin TD, Stirk A, Boden LA.Sudden death adversely affects racehorse welfare, jockey safety and the public perception of horseracing. Objective: To describe the risk of racing-associated sudden death in Thoroughbred racehorses in the UK from 2000 to 2007, to identify whether there were risk factors uniquely associated with sudden death and to improve the understanding of the pathogenesis of racing-associated sudden death by identification of risk factors for such cases. Methods: A sudden death was defined as an acute collapse and death, in an apparently healthy Thoroughbred racehorse, during or immediately after racing, ...
The association of various speed indices to training responses in Thoroughbred flat racehorses measured with a global positioning and heart rate monitoring system.
Equine veterinary journal. Supplement    May 27, 2011   Issue 38 51-57 doi: 10.1111/j.2042-3306.2010.00272.x
Fonseca RG, Kenny DA, Hill EW, Katz LM.Fitness assessment can be challenging. The use of global positioning systems (GPS) with heart rate (HR) monitors has been promising; however, evaluation of speed parameters during training has not been reported. Objective: To evaluate speed indices during training in Thoroughbreds using a GPS-HR monitor. Methods: Thoroughbreds (n = 102) were assessed during training with data collected each work day (WD; sprinting). Speed indices evaluated included maximal velocity (V(max)), duration at V(max) (V(maxt)), acceleration rate (m/s(2)) from 800 m to V(max) (Acc800-V(max)), the distance (m) 6 (V(max...
Saddle pressure patterns of three different training saddles (normal tree, flexible tree, treeless) in Thoroughbred racehorses at trot and gallop.
Equine veterinary journal. Supplement    May 27, 2011   Issue 38 630-636 doi: 10.1111/j.2042-3306.2010.00237.x
Latif SN, Von Peinen K, Wiestner T, Bitschnau C, Renk B, Weishaupt MA.To a large extent the success of a racehorse depends on effective and health preserving training methods. An important issue is the prevention of back pain. The influence of different types of training saddles (normal tree: S(A), treeless: S(B), flexible tree: S(C)) on the saddle pressure patterns in racehorses have not previously been investigated. It is commonly assumed that S(A) limits the motion of the back especially in the lower thoracic region during gallop. Objective: S(A) produces higher pressures in the caudal part of the saddle at trot (rising trot), canter and gallop (both in a joc...
Nutritional, lifestyle, and weight control practices of professional jockeys.
Journal of sports sciences    April 21, 2011   Volume 29, Issue 8 791-799 doi: 10.1080/02640414.2011.560173
Dolan E, O'Connor H, McGoldrick A, O'Loughlin G, Lyons D, Warrington G.In this study, we describe diet and lifestyle practices of professional jockeys. Participants completed a 59-item nutrition, lifestyle, and health questionnaire (n = 21) and a 7-day estimated food diary (n = 18). Acute weight loss strategies included the use of saunas (86%), exercising to induce sweating (81%), and restricted energy intake (71%). Of the smokers (38%), 56% used smoking to control weight. Most (86%) jockeys reported attaining a 2-kg weight loss for racing (if required) 24-48 h before or on the designated race-day. Mean daily energy intake (1803 ± 564 kcal) was low and appeared ...
An investigation of racing performance and whip use by jockeys in thoroughbred races.
PloS one    January 27, 2011   Volume 6, Issue 1 e15622 doi: 10.1371/journal.pone.0015622
Evans D, McGreevy P.Concerns have been expressed concerning animal-welfare issues associated with whip use during Thoroughbred races. However, there have been no studies of relationships between performance and use of whips in Thoroughbred racing. Our aim was to describe whip use and the horses' performance during races, and to investigate associations between whip use and racing performance. Under the Australian Racing Board (ARB) rules, only horses that are in contention can be whipped, so we expected that whippings would be associated with superior performance, and those superior performances would be explaine...
Predictors of race-day jockey falls in jumps racing in Australia.
Accident; analysis and prevention    December 9, 2010   Volume 43, Issue 3 840-847 doi: 10.1016/j.aap.2010.11.003
Hitchens P, Blizzard L, Jones G, Day L, Fell J.Thoroughbred jumps racing jockeys have a fall rate greater than their flat racing counterparts. Previous studies have focused on factors that contribute to falls by horses but, to date, there has not been a study of risk factors for falls to jockeys in jumps races. Data on race-day falls were extracted from stipendiary stewards reports lodged with Principal Racing Authorities following each race meeting. Denominator data were provided by Racing Information Services Australia on races conducted from August 2002 until July 2009. Univariable and multivariable analyses, estimating incidence rate r...
Borna disease virus antibody and RNA from peripheral blood mononuclear cells of race horses and jockeys in Korea.
Psychiatry investigation    November 27, 2010   Volume 8, Issue 1 58-60 doi: 10.4306/pi.2011.8.1.58
Song JW, Na KS, Tae SH, Kim YK.During the last two decades, Borna disease virus (BDV) has received much attention as a possible zoonotic agent, particularly as a cause of psychiatric disease. Although several studies have shown that BDV is present in Asia, BDV has not been detected in Korea. This study was designed to further investigate the presence of BDV infection in Korea. Methods: Blood samples were taken from 39 race horses and 48 jockeys. Antibody to BDV was detected by indirect immunofluorescence antibody test and RNA of BDV by real time reverse transcriptase PCR (rRT-PCR). Results: No evidence of BDV was detected i...
Nutrition assessment of horse-racing athletes.
Journal of community health    August 31, 2010   Volume 36, Issue 2 261-264 doi: 10.1007/s10900-010-9306-x
Cotugna N, Snider OS, Windish J.Athletes involved in horse racing face weight restrictions like wrestlers and dancers; however, the literature is sparse pertaining to nutritional habits of jockeys. The practice of "making weight" causes these athletes to engage in potentially unhealthy practices. A gap in nutritionally sound practices and methods used by jockeys was identified and a desire for nutrition education was expressed to Cooperative Extension of Delaware by representatives of the riders at Delaware Park Race Track. Nutrition assessment was done using the Nutrition Care Process. Twenty jockeys were interviewed using ...
Finite element modelling of equestrian helmet impacts exposes the need to address rotational kinematics in future helmet designs.
Computer methods in biomechanics and biomedical engineering    July 29, 2010   Volume 14, Issue 12 1021-1031 doi: 10.1080/10255842.2010.504922
Forero Rueda MA, Cui L, Gilchrist MD.Jockey head injuries, especially concussions, are common in horse racing. Current helmets do help to reduce the severity and incidences of head injury, but the high concussion incidence rates suggest that there may be scope to improve the performance of equestrian helmets. Finite element simulations in ABAQUS/Explicit were used to model a realistic helmet model during standard helmeted rigid headform impacts and helmeted head model University College Dublin Brain Trauma Model (UCDBTM) impacts. Current helmet standards for impact determine helmet performance based solely on linear acceleration....
Predictors of race-day jockey falls in flat racing in Australia.
Occupational and environmental medicine    June 23, 2010   Volume 67, Issue 10 693-698 doi: 10.1136/oem.2009.050567
Hitchens PL, Blizzard CL, Jones G, Day L, Fell J.Riding thoroughbred racehorses is a hazardous occupation. In this study, we investigated risk factors associated with falls by licensed thoroughbred racing jockeys participating in flat races conducted in Australia. Methods: Data on race-day falls were extracted from stewards' reports. Denominator data were provided by Racing Information Services Australia on races conducted in Australia from August 2002 until July 2006. Incidence rate ratios (IRRs) were estimated using Poisson regression. Analyses were stratified by race grade (maiden, class, open/restricted). Results: In multivariable analys...
Modern riding style improves horse racing times.
Science (New York, N.Y.)    July 18, 2009   Volume 325, Issue 5938 289 doi: 10.1126/science.1174605
Pfau T, Spence A, Starke S, Ferrari M, Wilson A.When animals carry loads, there is a proportionate increase in metabolic cost, and in humans this increase in cost is reduced when the load is elastically coupled to the load bearer. Major horse race times and records improved by 5 to 7% around 1900 when jockeys adopted a crouched posture. We show that jockeys move to isolate themselves from the movement of their mount. This would be difficult or impossible with a seated or upright, straight-legged posture. This isolation means that the horse supports the jockey's body weight but does not have to move the jockey through each cyclical stride pa...
Fall and injury incidence rates of jockeys while racing in Ireland, France and Britain.
Injury    June 13, 2009   Volume 41, Issue 5 533-539 doi: 10.1016/j.injury.2009.05.009
Rueda MA, Halley WL, Gilchrist MD.This article presents and analyses injury incidence rates for amateur and professional racing jockeys in Ireland, France and Britain by means of a retrospective study and review of published data. Amateur jump racing was seen to have the highest fall risk in these three countries (between 115 and 140 falls/1000 rides). Jump racing also had the highest rates of injury/ride amongst both amateur and professional jockeys. Flat racing, however, had the highest rates of injuries/fall (34-44%). Of all the injuries in both jump and flat racing populations of amateur and professional jockeys, 15% were ...
Body mass index and serum gamma-glutamyltransferase level as risk factors for injuries related to professional horse racing: a prospective study.
Journal of occupational health    June 1, 2009   Volume 51, Issue 4 323-331 doi: 10.1539/joh.l8158
Tobari H, Yamagishi K, Noda H, Tanigawa T, Iso H.Prevention of horse-related injuries is considered difficult because horse behavior is unpredictable. Therefore, risk factors for injuries related to professional horse racing need to be investigated. We conducted a study to determine whether body mass index (BMI) and gamma-glutamyltransferase (GGT) levels are associated with professional horse racing-related injuries. Methods: A baseline healthy survey of 546 male grooms and exercise riders aged 40-70 yr working at Miho Training Center, the largest racing-horse training facility in Japan, was performed in May 2003. A total of 93 occupational ...
The incidence of race-day jockey falls in Australia, 2002-2006.
The Medical journal of Australia    February 25, 2009   Volume 190, Issue 2 83-86 doi: 10.5694/j.1326-5377.2009.tb02284.x
Hitchens PL, Blizzard CL, Jones G, Day LM, Fell J.To describe rates of occurrence of falls, injuries and fatalities to horse-racing jockeys in Australia. Methods: Retrospective analysis of data on race-day falls from stewards' reports provided by the Principal Racing Authority of each state and territory of Australia, August 2002 - July 2006. Methods: Fall, injury and fatality incidence rates; comparison with overseas rates. Results: There were 3360 jockey falls from 748 367 rides. Falls occurred at a rate of 0.42 per 100 rides in flat races and 5.26 per 100 rides in jumps races. In flat racing, 54.6% (1694/3101) of falls occurred before the ...
Psychological effects of rapid weight loss and attitudes towards eating among professional jockeys.
Journal of sports sciences    June 24, 2008   Volume 26, Issue 9 877-883 doi: 10.1080/02640410701837349
Caulfield MJ, Karageorghis CI.We examined the psychological effects of rapid weight loss among a sample of 41 professional jockeys (mean age 30.9 years, s = 7.0). Participants completed the Brunel Mood Scale (BRUMS) and the Eating Attitudes Test-26 (EAT-26) to establish the relationships between rapid weight loss, mood, and attitudes towards eating. These instruments were administered on three occasions: at the jockeys' minimal weight (achieved through rapid weight loss), their optimal riding weight (when they were not excessively restricting their weight and felt healthy), and their relaxed weight (when there were no fort...
Payments to injured professional jockeys in British horse racing (1996-2006).
British journal of sports medicine    April 1, 2008   Volume 42, Issue 9 763-766 doi: 10.1136/bjsm.2007.040337
Turner M, Balendra G, McCrory P.To determine the direct and indirect cost of injuries in professional jockeys as a result of race riding. Methods: Cohort study. Methods: Professional horse racing. Methods: Professional jockeys in the UK registered with the Jockey Club. Methods: Payouts under the Professional Riders Insurance Scheme (PRIS) for injuries sustained by professional jockeys, which were recorded by the Jockey Club injury database between 1996 and 2006 inclusive. Results: In the 11-year period of the study, there were 1328 injuries that resulted in jockeys missing a total of 71,509 days of racing, and as a result PR...