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Author |
Singer, E.R.; Barnes, J.; Saxby, F.; Murray, J.K. |
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Title |
Injuries in the event horse: Training versus competition |
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Journal Article |
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Year |
2007 |
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Abbreviated Journal |
Vet J |
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Two related studies on injuries sustained by event horses during competition and during training are reported. During the cross-country phase of competition, the most common injuries were lacerations and abrasions to the carpus and stifle. Superficial digital flexor tendonitis and exertional rhabdomyolysis were significantly more common during Cours Complete Internationale (CCI) competitions compared to one-day event (ODE) competitions. The difference in injury types at ODEs and CCI competitions probably relates to the increased athletic demands of the CCI and the closer veterinary observation at these competitions. The results of the training study indicate that 21% of horses intending to compete in a CCI did not start due to injury. Forty-three percent of these injuries involved soft tissue structures with injuries to the superficial digital flexor tendon and the suspensory ligament each accounting for 33%. The most important area for future research is investigation of the risk factors for these career-threatening soft tissue injuries. |
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Division of Equine Studies, University of Liverpool, Leahurst, Neston, South Wirral, CH64 7TE, UK |
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1090-0233 |
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PMID:17204438 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4025 |
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Author |
Murray, R.C.; Branch, M.V.; Dyson, S.J.; Parkin, T.D.H.; Goodship, A.E. |
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Title |
How does exercise intensity and type affect equine distal tarsal subchondral bone thickness? |
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Journal Article |
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Year |
2007 |
Publication |
Journal of Applied Physiology (Bethesda, Md. : 1985) |
Abbreviated Journal |
J Appl Physiol |
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Volume |
102 |
Issue |
6 |
Pages |
2194-2200 |
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Abstract |
Adaptation of osteochondral tissues is based on the strains experienced during exercise at each location within the joint. Different exercise intensities and types may induce particular site-specific strains, influencing osteochondral adaptation and potentially predisposing to injury. Our hypotheses were that patterns of equine distal tarsal subchondral bone (SCB) thickness relate to the type and intensity of exercise, and that high-intensity exercise leads to site-specific increases in thickness. SCB thickness was measured at defined dorsal and plantar locations on magnetic resonance images of cadaver tarsi collected from horses with a history of low [general purpose (n=20) and horse walker (n=6)] or high [elite competition (n=12), race training (n=15), and treadmill training (n=4)] exercise intensity. SCB thickness was compared between sites within each exercise group and between exercise groups. SCB thickness in elite competition and race training, but not treadmill training, was greater than low-intensity exercise. For general purpose horses, lateral SCB thickness was greater than medial throughout. Horse walker exercise led to relatively thicker lateral and medial SCB compared with the midline. Elite competition was associated with increased SCB thickness of the proximal small tarsal bones medially and the distal bones laterally. For race training and treadmill training, there were minimal differences between sites overall, although the lateral aspect was greater than medial, and medial greater than midline at a few sites for race training. In conclusion, different types of high-intensity exercise were associated with different patterns of SCB thickness across the joints from medial to lateral and proximal to distal, indicating that both exercise intensity and type of exercise affect the SCB response at any particular site within the equine distal tarsal joints. |
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Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU, United Kingdom. rachel.murray@aht.org.uk |
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8750-7587 |
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PMID:17332271 |
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Call Number |
Equine Behaviour @ team @ |
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4021 |
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Author |
Bell, R.J.W.; Kingston, J.K.; Mogg, T.D.; Perkins, N.R. |
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Title |
The prevalence of gastric ulceration in racehorses in New Zealand |
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Journal Article |
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Year |
2007 |
Publication |
New Zealand Veterinary Journal |
Abbreviated Journal |
N Z Vet J |
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Volume |
55 |
Issue |
1 |
Pages |
13-18 |
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Keywords |
Age Factors; *Animal Feed; Animal Husbandry/methods; Animals; Female; Horse Diseases/*epidemiology/pathology/prevention & control; Horses; Male; New Zealand/epidemiology; Physical Conditioning, Animal/*adverse effects/physiology; Poaceae; Prevalence; Risk Factors; Severity of Illness Index; Sex Factors; Stomach Ulcer/epidemiology/pathology/prevention & control/*veterinary; Time Factors |
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AIM: To establish the prevalence and factors influencing the prevalence and severity of gastric ulceration in racehorses in New Zealand. METHODS: Horses (n=171) in active training for racing by trainers (n=24) located throughout New Zealand were examined using gastroscopy during 2003 and 2004. Images of the examination were recorded and reviewed, and an ordinal grade based on the severity of gastric ulceration present was assigned, using the grading system proposed by the Equine Gastric Ulcer Council (EGUC). Information about the horses such as age, breed, sex, stabling, time at pasture, pasture quality, and presence of clinical signs consistent with equine gastric ulcer syndrome (EGUS) was recorded. RESULTS: Of the 171 horses in the study, 133 (78%) were Thoroughbreds and 38 (22%) were Standardbreds. Evidence of gastric ulceration was present in 151 (88.3%) of these. Prevalence of ulceration was higher at the lesser curvature (LC) and greater curvature (GC) of the stomach than at the saccus caecus (SC; p<0.01), and ulceration was more severe at the LC than at either the GC (p=0.02) or the SC (p<0.001). The prevalence of ulceration did not differ between the two breeds (p=0.51) or between horses of differing ages (p=0.56). Gastric ulceration was evident in 125/141 (89%) horses kept at pasture for at least 4 h/day, in all 13 (100%) horses kept at pasture full time, and in 16/17 (94%) horses stabled full time. Prevalence and severity of ulceration did not differ between horses stabled full time, kept at pasture for part of the day or kept at pasture full time (p=0.33 and 0.13, respectively), and for horses grazed on pasture severity of ulceration did not vary significantly with the quality of the pasture (p=0.12). Neither prevalence (p=0.26) nor severity (p=0.49) of gastric ulceration varied significantly with duration of training. CONCLUSIONS: The prevalence of gastric ulceration in racehorses in New Zealand is similar to that reported elsewhere for horses in active training for racing. Access to pasture for some or all of the day did not appear to be protective. |
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Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand. robinjw@gmail.com |
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0048-0169 |
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Notes |
PMID:17339911 |
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Call Number |
Equine Behaviour @ team @ |
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4020 |
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Author |
Boissevain, I. |
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Title |
[Animal and human rights in installments] |
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Year |
2007 |
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Tijdschrift Voor Diergeneeskunde |
Abbreviated Journal |
Tijdschr Diergeneeskd |
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Volume |
132 |
Issue |
4 |
Pages |
132 |
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Keywords |
Animals; Clinical Competence/*standards; Horse Diseases/*diagnosis; Horses; Humans; Netherlands; Time Factors; Veterinary Medicine/*methods/*standards |
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Dutch |
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Original Title |
Dierenrechten en mensenrechten in termijnen |
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0040-7453 |
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PMID:17366876 |
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Equine Behaviour @ team @ |
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4018 |
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Author |
Rutherford, D.J.; Bladon, B.; Rogers, C.W. |
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Outcome of lag-screw treatment of incomplete fractures of the frontal plane of the radial facet of the third carpal bone in horses |
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Journal Article |
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Year |
2007 |
Publication |
New Zealand Veterinary Journal |
Abbreviated Journal |
N Z Vet J |
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55 |
Issue |
2 |
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94-99 |
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Animals; Bone Screws/*veterinary; Carpus, Animal/radiography/*surgery; Case-Control Studies; Female; Fracture Healing; Horses/*injuries/surgery; Male; Physical Conditioning, Animal; Records/veterinary; Retrospective Studies; Treatment Outcome |
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AIM: To describe outcomes for horses diagnosed with incomplete, non-displaced fractures of the frontal plane of the radial facet (INFR) of the third carpal bone (C3) treated by placement of a lag screw across the fracture under arthroscopic guidance. METHODS: Horses (n=13) diagnosed with INFR and treated between December 1999 and January 2005 using a lag screw placed over the fracture were studied. For each case, five horses matched for sire, age and sex which were not known to have INFR were sought for comparison. Racing performance data were collected from a commercial online database. The racing performance of cases pre- and post-operatively, and of cases and matched horses in the post-operative period was compared. RESULTS: Sixteen INFR were found in the 13 horses. Radiographic evidence of healed fracture lines 2-4 months after surgery was seen in 11/16 (69%) fractures; 11/13 (85%) cases raced again after a median recovery period of 292 (range 149-681) days. Treatment was considered successful in 9/13 (69%) cases, which were still in training or had been retired for reasons other than lameness localised to the middle carpal joint at the end of the study period. Just 6/13 (46%) cases had raced prior to injury. The racing ability pre- and post-operatively of five cases was compared, three (60%) of which performed better post-operatively than they had before. There was no significant difference in racing longevity or ability post-operatively between patients and matched (control) horses. CONCLUSIONS: Post-operatively, there was little difference in the racing performance between horses diagnosed with INFR which had a lag screw placed across the fracture line and horses matched for sire, age and sex which were not known to have INFR. CLINICAL RELEVANCE: Horses which were diagnosed with INFR of C3 and had a lag screw placed across the fracture had a good prognosis for future racing performance. |
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Massey Equine, Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand. d.j.rutherford@massey.ac.nz |
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0048-0169 |
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PMID:17410217 |
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Equine Behaviour @ team @ |
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4001 |
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Author |
Allen, D.; Tanner, K. |
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Putting the horse back in front of the cart: using visions and decisions about high-quality learning experiences to drive course design |
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Journal Article |
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2007 |
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CBE Life Sciences Education |
Abbreviated Journal |
CBE Life Sci Educ |
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6 |
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2 |
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85-89 |
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Curriculum/*standards; *Decision Making; *Learning; Models, Educational; Schools; Teaching/*methods/*standards |
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Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA. deallen@udel.edu |
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1931-7913 |
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PMID:17548870 |
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Equine Behaviour @ team @ |
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3999 |
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Dubois, C.; Ricard, A. |
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Title |
Efficiency of past selection of the French Sport Horse: Selle Francais breed and suggestions for the future |
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Journal Article |
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2007 |
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Livestock Science |
Abbreviated Journal |
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112 |
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1-2 |
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161-171 |
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Keywords |
Horse; Genetic trend; Selection; Jumping |
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Parameters of genetic trend of Selle Francais (SF) horse breed were studied from 1974 to 2002 and detailed since 1991 because historical BLUP animal model genetic evaluation for jumping competition was available since 1989. During this period, annual births varied from 6000 to 10,000. The annual genetic trend for show jumping was 0.055 of genetic standard deviation between 1985 and 1995 and 0.096 since 1995 without unfavourable trend for dressage (ΔG = + 0.002) and eventing (ΔG = + 0.011). The three parameters of genetic trend: the selection intensity (i = 1.95 for males, 0.48 for females), the accuracy (r = 0.66 for males, 0.60 for females), and the generation interval (L = 12.0 years for males, 11.5 for females) explained this result. Particularities were: a higher number of progeny for best sires which induced true selection intensity equal to 2.21, a new and important selection on progeny (46% births form sires tested on progeny between 2000 and 2002), a high rate of own performance test in competition for mares (45%) which induced high accuracy of mare pathway. However, demographic possibilities were not reached, the possible selection rate for male (1.5%) and females (49%) should increase genetic gain + 14% and + 11% respectively. The generation interval was too long: a better selection at first stage for males, with equal rapid test on progeny and a shorter period of reproduction, i.e. a higher number of foals per sire, should decrease the relative importance of progeny test and should decrease generation interval. The drop of mares aged more than 10 at first progeny should decrease 1.2 year generation interval without loss on accuracy. If breeders keep the same structure (test of stallion and majority of mares on their own performance), they could add new criteria (conformation, gaits...) in the breeding value estimation for SF and maintain the high genetic trend on jumping. |
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refbase @ user @ |
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3946 |
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Ducro, B.J.; Koenen, E.P.C.; van Tartwijk, J.M.F.M.; van Arendonk, J.A.M. |
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Title |
Genetic relations of First Stallion Inspection traits with dressage and show-jumping performance in competition of Dutch Warmblood horses |
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Journal Article |
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Year |
2007 |
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Livestock Science |
Abbreviated Journal |
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107 |
Issue |
1 |
Pages |
81-85 |
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Keywords |
Riding horse; Heritability; Stallion inspection; Dressage; Show-jumping |
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Abstract |
Genetic parameters for traits evaluated at the First Stallion Inspection (FSI) and genetic correlations with dressage and show-jumping performance in competition were estimated. Data comprised 2361 stallions with FSI-observations from 1994 through 1999. Genetic analyses were performed using univariate and bivariate animal models. Heritability estimates of the FSI-traits ranged from 0.25 to 0.61. FSI-traits related to gaits showed strong genetic correlations (above 0.70) and FSI-traits related to free jumping had correlations close to unity. Competition results of 23,897 horses with performance in dressage and 22,811 horses with performance in show-jumping were linked to the FSI data to estimate the genetic relationship with performance in competition. Heritability estimates for dressage and show-jumping were 0.14. Genetic correlation between FSI-gaits and dressage in competition were positive, ranging from 0.37 to 0.72. Genetic correlation between FSI-jumping traits and show-jumping were all above 0.80. FSI-jumping traits showed negative correlations with dressage (about – 0.48). FSI-gait traits showed negative correlations with show-jumping, except for canter. It is concluded that selection at First Stallion Inspection comprises an important component of the stallion selection program, because FSI-traits have good genetic relationships with performance in competition and, due to the number of animals involved, relative high selection intensities can be achieved. |
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refbase @ user @ |
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3948 |
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Ducro, B.J.; Koenen, E.P.C.; van Tartwijk, J.M.F.M.; Bovenhuis, H. |
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Title |
Genetic relations of movement and free-jumping traits with dressage and show-jumping performance in competition of Dutch Warmblood horses |
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Journal Article |
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2007 |
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Livestock Science |
Abbreviated Journal |
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107 |
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2-3 |
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227-234 |
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Horse; Heritability; Movement; Free-jumping; Dressage |
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Genetic parameters for traits evaluated at the studbook entry inspection and genetic correlations with dressage and show-jumping performance in competition were estimated. Data comprised 36,649 Warmblood horses that entered the studbook between 1992 and 2002. The genetic analyses were performed using univariate and bivariate animal models. Heritabilities of the studbook entry traits were estimated in the range 0.15-0.40. The movement traits showed moderate to strong mutual genetic correlations, whereas the genetic correlations of movement traits with free-jumping traits were weak to moderate. The free-jumping traits showed strong to very strong mutual genetic correlations. Competition results of 33,459 horses with performance in dressage and 30,474 horse with performance in show-jumping were linked to the studbook entry data to estimate the genetic relationship with performance in competition. Heritability estimates for dressage and show jumping were 0.14. Genetic correlations of the movement traits with dressage were moderate to strong, and with show-jumping weak to moderate. Genetic correlations of the free-jumping traits with dressage were weak to moderate and unfavourable. The free-jumping traits were genetically strong to very strong correlated to show-jumping. It was concluded that a selection of the traits evaluated at the studbook entry inspection will favourably contribute to estimation of breeding values for sport performance. |
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refbase @ user @ |
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3947 |
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Balendra, G.; Turner, M.; McCrory, P.; Halley, W. |
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Title |
Injuries in amateur horse racing (point to point racing) in Great Britain and Ireland during 1993-2006 |
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Journal Article |
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Year |
2007 |
Publication |
British Journal of Sports Medicine |
Abbreviated Journal |
Br J Sports Med |
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41 |
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3 |
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162-166 |
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OBJECTIVES: To provide a breakdown of injury incidence from amateur jump racing (also known as point to point racing) in Great Britain and Ireland during 1993-2006 and to compare the injury epidemiology with professional horse racing in Great Britain, Ireland and France. DESIGN: Retrospective review. SETTING: Great Britain and Ireland. PARTICIPANTS: Amateur jockeys. MAIN OUTCOME MEASURES: Injury rates. RESULTS: Injury data suggest that point to point racing is more dangerous from an injury point of view than professional jump racing, which has previously been shown to be more dangerous than flat racing. Amateur jockeys have more falls than their professional counterparts, and this in turn puts them at greater risk of sustaining more serious injuries. CONCLUSIONS: Amateur (point to point) jockeys represent a sporting population that previously has been little studied. They represent a group at high risk of injury, and hence formal injury surveillance tracking and counter measures for injury prevention are recommended. |
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University of Melbourne, Melbourne, Victoria, Australia |
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1473-0480 |
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PMID:17138629 |
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refbase @ user @ |
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3821 |
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