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Author |
Schaer, B.L.D.; Ryan, C.T.; Boston, R.C.; Nunamaker, D.M. |
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Title |
The horse-racetrack interface: a preliminary study on the effect of shoeing on impact trauma using a novel wireless data acquisition system |
Type |
Journal Article |
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Year |
2006 |
Publication |
Equine Veterinary Journal |
Abbreviated Journal |
Equine Vet J |
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Volume |
38 |
Issue |
7 |
Pages |
664-670 |
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Keywords |
Animals; Equipment and Supplies/veterinary; Forelimb/injuries/physiology; Hindlimb/injuries/physiology; Hoof and Claw/*physiology; Horses/*injuries/*physiology; Locomotion/physiology; Muscle, Skeletal/injuries/*physiology; *Musculoskeletal Physiology; Musculoskeletal System/*injuries; Physical Conditioning, Animal/*physiology; Risk Factors; Running/physiology; Shoes |
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Abstract |
REASONS FOR PERFORMING STUDY: There is a need to determine accelerations acting on the equine hoof under field conditions in order to better assess the risks for orthopaedic health associated with shoeing practices and/or surface conditions. OBJECTIVES: To measure the acceleration profiles generated in Thoroughbred racehorses exercising at high speeds over dirt racetracks and specifically to evaluate the effect of a toe grab shoe compared to a flat racing plate, using a newly developed wireless data acquisition system (WDAS). METHODS: Four Thoroughbred racehorses in training and racing were used. Based on previous trials, each horse served as its own control for speed trials, with shoe type as variable. Horses were evaluated at speeds ranging from 12.0-17.3 m/sec. Impact accelerations, acceleration on break over and take-off, and temporal stride parameters were calculated. Impact injury scores were also determined, using peak accelerations and the time over which they occurred. RESULTS: Recorded accelerations for the resultant vector (all horses all speeds) calculated from triaxial accelerometers ranged 96.3-251.1 g, depending on the phase of the impact event. An association was observed between shoe type and change in acceleration in individual horses, with 2 horses having increased g on initial impact with toe grab shoes in place. In the final impact phase, one horse had an increase of 110 g while wearing toe grab shoes. Increased accelerations were also observed on break over in 2 horses while wearing toe grab shoes. CONCLUSIONS: Shoe type may change impact accelerations significantly in an individual horse and could represent increased risk for injury. Further work is needed to determine if trends exist across a population. POTENTIAL RELEVANCE: The WDAS could be used for performance evaluation in individual horses to evaluate any component of the horse-performance surface interface, with the goal of minimising risk and optimising performance. |
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Richard S. Reynolds Jr. Comparative Orthopedic Research Laboratory, New Bolton Center, University of Pennsylvania School of Veterinary Medicine, Kennett Square, Pennsylvania 19348, USA |
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0425-1644 |
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PMID:17228583 |
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no |
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Equine Behaviour @ team @ |
Serial |
4024 |
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Author |
Grandin, T. |
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Title |
Safe handling of large animals |
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Journal Article |
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Year |
1999 |
Publication |
Occupational Medicine (Philadelphia, Pa.) |
Abbreviated Journal |
Occup Med |
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Volume |
14 |
Issue |
2 |
Pages |
195-212 |
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Keywords |
Accidents, Occupational/*prevention & control/statistics & numerical data; Aggression/physiology/psychology; Animal Husbandry/*methods; Animals; *Behavior, Animal/physiology; Cattle; Conditioning, Operant/physiology; Crowding/psychology; Fear/physiology/psychology; Female; *Horses/physiology/psychology; Humans; Male; Movement/physiology; *Occupational Health; Risk Factors; *Ruminants/physiology/psychology |
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Abstract |
The major causes of accidents with cattle, horses, and other grazing animals are: panic due to fear, male dominance aggression, or the maternal aggression of a mother protecting her newborn. Danger is inherent when handling large animals. Understanding their behavior patterns improves safety, but working with animals will never be completely safe. Calm, quiet handling and non-slip flooring are beneficial. Rough handling and excessive use of electric prods increase chances of injury to both people and animals, because fearful animals may jump, kick, or rear. Training animals to voluntarily cooperate with veterinary procedures reduces stress and improves safety. Grazing animals have a herd instinct, and a lone, isolated animal can become agitated. Providing a companion animal helps keep an animal calm. |
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Department of Animal Science, Colorado State University, Fort Collins 80526, USA |
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0885-114X |
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PMID:10329901 |
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no |
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Equine Behaviour @ team @ |
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3793 |
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Author |
Kraft, C.N.; Urban, N.; Ilg, A.; Wallny, T.; Scharfstadt, A.; Jager, M.; Pennekamp, P.H. |
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Title |
[Influence of the riding discipline and riding intensity on the incidence of back pain in competitive horseback riders] |
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Journal Article |
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Year |
2007 |
Publication |
Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin |
Abbreviated Journal |
Sportverletz Sportschaden |
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Volume |
21 |
Issue |
1 |
Pages |
29-33 |
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Keywords |
Adolescent; Adult; Aged; Animals; Child; Female; Horses; Humans; Incidence; Low Back Pain/diagnosis/*epidemiology/etiology; Male; Middle Aged; Pain Measurement; Questionnaires; Risk Factors; *Sports/physiology |
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Abstract |
INTRODUCTION: The connection between morphologic changes of the spine and the intensity of training has been assessed for a number of sport activities. The influence of horseback riding on the spine has only rarely been evaluated. The aim of our study was to evaluate to what degree horseback riders suffer from back pain and whether there is an association between this parameter and the category i. e. the intensity of horseback riding. Furthermore we wanted to judge whether riding may have a positive effect on pre-existent back pain. METHODS: 508 horseback riders (63.2 % females; 36.8 % males) competing in either dressage, showjumping or vaulting were interviewed using a questionnaire. Apart from biometric data, the intensity with which riding was performed and the localisation and intensity (VAS) of back pain was assessed. Furthermore, in the case of existing back pain, riders were asked whether different riding disciplines and paces changed the intensity of pain. RESULTS: 300 dressage riders (59.1 %), 188 showjumpers (37.0 %) and 20 vaulters (3.9 %) with an average age of 33.5 Jahre (12 – 77 years) were questioned. The incidence of back pain was 72.5 %. A significant correlation between back pain and riding discipline respectively gender or riding level could not be found. Discrepancies in VAS-score for dressage riders (3.95 +/- 0.13), show jumpers (4.10 +/- 0.16) and vaulters (3.76 +/- 0.5) were marginal and not significant (p > 0.05). Overall 58.7 % resp. 15.2 % reported to have pain in the lumbar i.e cervical spine. Despite the fact that a large fraction of dressage riders claimed to have problems in these spine areas with 57.7 % resp. 68.8 %, this finding was not significant compared to the other riding disciplines. While 61.6 % of dressage riders reported an improvement of their back pain when riding, this was only the case in 40.9 % of show jumpers. CONCLUSION: Compared to the general population, a high incidence of back pain is found among riders. A significant correlation between the intensity of riding or the riding discipline and frequency or severity of back pain could not be found. For riders with pre-existent back pain the pace “walk” seems to have a positive influence on pain intensity. |
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Klinik und Poliklinik fur Orthopadie, Heinrich-Heine-Universitat, Dusseldorf. clayton.kraft@med.uni-duesseldorf.de |
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German |
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Original Title |
Einfluss der Reitdisziplin und -intensitat auf die Inzidenz von Ruckenschmerzen bei Reitsportlern |
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0932-0555 |
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PMID:17385102 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3706 |
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Author |
Bentley, T.; Macky, K.; Edwards, J. |
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Title |
Injuries to New Zealanders participating in adventure tourism and adventure sports: an analysis of Accident Compensation Corporation (ACC) claims |
Type |
Journal Article |
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Year |
2006 |
Publication |
The New Zealand Medical Journal |
Abbreviated Journal |
N Z Med J |
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Volume |
119 |
Issue |
1247 |
Pages |
U2359 |
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Keywords |
Adolescent; Adult; Aged; Athletic Injuries/*economics/*epidemiology; Back Injuries/epidemiology; Bicycling/economics/injuries; Female; Humans; Insurance Claim Reporting/*statistics & numerical data; Insurance, Liability/*utilization; Male; Middle Aged; Mountaineering/economics/injuries; New Zealand/epidemiology; *Risk-Taking; Skiing/economics/injuries; Sprains and Strains/epidemiology |
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Abstract |
AIMS: The aim of this study was to examine the involvement of adventure tourism and adventure sports activity in injury claims made to the Accident Compensation Corporation (ACC). METHODS: Epidemiological analysis of ACC claims for the period, July 2004 to June 2005, where adventure activities were involved in the injury. RESULTS: 18,697 adventure tourism and adventure sports injury claims were identified from the data, representing 28 activity sectors. Injuries were most common during the summer months, and were most frequently located in the major population centres. The majority of injuries were incurred by claimants in the 20-50 years age groups, although claimants over 50 years of age had highest claims costs. Males incurred 60% of all claims. Four activities (horse riding, mountain biking, tramping/hiking, and surfing) were responsible for approximately 60% of all adventure tourism and adventure sports-related injuries. Slips, trips, and falls were the most common injury initiating events, and injuries were most often to the back/spine, shoulder, and knee. CONCLUSIONS: These findings suggest the need to investigate whether regulatory intervention in the form of codes of practice for high injury count activities such as horse riding and mountain biking may be necessary. Health promotion messages and education programs should focus on these and other high-injury risk areas. Improved risk management practices are required for commercial adventure tourism and adventure sports operators in New Zealand if safety is to be improved across this sector. |
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Department of Management and International Business Massey University, Auckland. T.A.Bentley@massey.ac.nz |
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1175-8716 |
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PMID:17195852 |
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no |
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1843 |
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Author |
Palleroni, A.; Hauser, M.; Marler, P. |
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Title |
Do responses of galliform birds vary adaptively with predator size? |
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Journal Article |
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Year |
2005 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
8 |
Issue |
3 |
Pages |
200-210 |
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Keywords |
Adaptation, Psychological; Animals; *Avoidance Learning; *Behavior, Animal; Body Size; Chickens; Female; Food Chain; Male; *Pattern Recognition, Visual; *Predatory Behavior; *Recognition (Psychology); Risk Assessment |
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Abstract |
Past studies of galliform anti-predator behavior show that they discriminate between aerial and ground predators, producing distinctive, functionally referential vocalizations to each class. Within the category of aerial predators, however, studies using overhead models, video images and observations of natural encounters with birds of prey report little evidence that galliforms discriminate between different raptor species. This pattern suggests that the aerial alarm response may be triggered by general features of objects moving in the air. To test whether these birds are also sensitive to more detailed differences between raptor species, adult chickens with young were presented with variously sized trained raptors (small, intermediate, large) under controlled conditions. In response to the small hawk, there was a decline in anti-predator aggression and in aerial alarm calling as the young grew older and less vulnerable to attack by a hawk of this size. During the same developmental period, responses to the largest hawk, which posed the smallest threat to the young at all stages, did not change; there were intermediate changes at this time in response to the middle-sized hawk. Thus the anti-predator behavior of the adult birds varied in an adaptive fashion, changing as a function of both chick age and risk. We discuss these results in light of current issues concerning the cognitive mechanisms underlying alarm calling behavior in animals. |
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Primate Cognitive Neuroscience Laboratory, Department of Psychology, Harvard University, 33 Kirkland St., Cambridge, MA, 02138, USA. aliparti@wjh.harvard.edu |
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1435-9448 |
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PMID:15660209 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2496 |
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Permanent link to this record |
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Author |
Jackson, R.R.; Pollard, S.D.; Li, D.; Fijn, N. |
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Title |
Interpopulation variation in the risk-related decisions of Portia labiata, an araneophagic jumping spider (Araneae, Salticidae), during predatory sequences with spitting spiders |
Type |
Journal Article |
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Year |
2002 |
Publication |
Animal Cognition |
Abbreviated Journal |
Anim. Cogn. |
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Volume |
5 |
Issue |
4 |
Pages |
215-223 |
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Keywords |
Animals; Female; Male; Mental Processes; *Predatory Behavior; Risk Factors; *Spiders |
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Abstract |
The extent to which decision-making processes are constrained in animals with small brains is poorly understood. Arthropods have brains much smaller and simpler than those of birds and mammals. This raises questions concerning limitations on how intricate the decision-making processes might be in arthropods. At Los Banos in the Philippines, Scytodes pallidus is a spitting spider that specialises in preying on jumping spiders, and Portia labiata is a jumping spider that preys on S. pallidus. Scytodid spit comes from the mouth, and egg-carrying females are less dangerous than eggless scytodids because the female uses her chelicerae to hold her eggs. Held eggs block her mouth, and she has to release them before she can spit. The Los Banos P. labiata sometimes adjusts its tactics depending on whether the scytodid encountered is carrying eggs or not. When pursuing eggless scytodids, the Los Banos P. labiata usually takes detour routes that enable it to close in from behind (away from the scytodid's line of fire). However, when pursuing egg-carrying scytodids, the Los Banos P. labiata sometimes takes faster direct routes to reach these safer prey. The Los Banos P. labiata apparently makes risk-related adjustments specific to whether scytodids are carrying eggs, but P. labiata from Sagada in the Philippines (allopatric to Scytodes) fails to make comparable risk-related adjustments. |
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Department of Zoology, University of Canterbury, Private Bag 4800, Christchurch, New Zealand |
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1435-9448 |
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PMID:12461599 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2591 |
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Author |
Pelé, M.; Sueur, C. |
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Title |
Decision-making theories: linking the disparate research areas of individual and collective cognition |
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Journal Article |
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Year |
2013 |
Publication |
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Abbreviated Journal |
Animal Cognition |
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16 |
Issue |
4 |
Pages |
543-556 |
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Optimality; Primates; Insects; Diffusion Model; Delay; Risk; Speed-accuracy; Trade-off |
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Abstract |
In order to maximize their fitness, animals have to deal with different environmental and social factors that affect their everyday life. Although the way an animal behaves might enhance its fitness or survival in regard to one factor, it could compromise them regarding another. In the domain of decision sciences, research concerning decision making focuses on performances at the individual level but also at the collective one. However, between individual and collective decision making, different terms are used resulting in little or no connection between both research areas. In this paper, we reviewed how different branches of decision sciences study the same concept, mainly called speed-accuracy trade-off, and how the different results are on the same track in terms of showing the optimality of decisions. Whatever the level, individual or collective, each decision might be defined with three parameters: time or delay to decide, risk and accuracy. We strongly believe that more progress would be possible in this domain of research if these different branches were better linked, with an exchange of their results and theories. A growing amount of literature describes economics in humans and eco-ethology in birds making compromises between starvation, predation and reproduction. Numerous studies have been carried out on social cognition in primates but also birds and carnivores, and other publications describe market or reciprocal exchanges of commodities. We therefore hope that this paper will lead these different areas to a common decision science. |
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Springer-Verlag |
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English |
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1435-9448 |
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Equine Behaviour @ team @ |
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5692 |
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Permanent link to this record |
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Author |
Proudman, C.; Pinchbeck, G.; Clegg, P.; French, N. |
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Title |
Equine welfare: risk of horses falling in the Grand National |
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Journal Article |
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Year |
2004 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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428 |
Issue |
6981 |
Pages |
385-386 |
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Accidental Falls/prevention & control/*statistics & numerical data; Animal Welfare; Animals; Great Britain; Horse Diseases/prevention & control; Horses/*physiology; Odds Ratio; Risk Assessment; *Sports |
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As in other competitive sports, the famous Grand National steeplechase, which is held at Aintree in the United Kingdom and is watched by 600 million people worldwide, sometimes results in injury. By analysing data from the past 15 Grand National races (consisting of 560 starts by horses), we are able to identify several factors that are significantly associated with failure to complete the race: no previous experience of the course and its unique obstacles, unfavourable ground conditions (too soft or too hard), a large number of runners, and the length of the odds ('starting price'). We also find that there is an increased risk of falling at the first fence and at the jump known as Becher's Brook, which has a ditch on the landing side. Our findings indicate ways in which the Grand National could be made safer for horses and illustrate how epidemiological analysis might contribute to preventing injury in competitive sport. |
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Epidemiology Group, Faculty of Veterinary Science, University of Liverpool, Leahurst, Neston, Wirral CH64 7TE, UK. c.j.proudman@liverpool.ac.uk |
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1476-4687 |
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PMID:15042079 |
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no |
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Call Number |
refbase @ user @ |
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535 |
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Author |
Wolf, M.; van Doorn, G.S.; Leimar, O.; Weissing, F.J. |
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Title |
Life-history trade-offs favour the evolution of animal personalities |
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Journal Article |
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Year |
2007 |
Publication |
Nature |
Abbreviated Journal |
Nature |
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Volume |
447 |
Issue |
7144 |
Pages |
581-584 |
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Keywords |
Aggression/physiology/psychology; Animals; Behavior, Animal/*physiology; *Evolution; Exploratory Behavior/physiology; Models, Biological; Personality/*physiology; Predatory Behavior/physiology; Reproduction/physiology; Risk-Taking; Selection (Genetics) |
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In recent years evidence has been accumulating that personalities are not only found in humans but also in a wide range of other animal species. Individuals differ consistently in their behavioural tendencies and the behaviour in one context is correlated with the behaviour in multiple other contexts. From an adaptive perspective, the evolution of animal personalities is still a mystery, because a more flexible structure of behaviour should provide a selective advantage. Accordingly, many researchers view personalities as resulting from constraints imposed by the architecture of behaviour (but see ref. 12). In contrast, we show here that animal personalities can be given an adaptive explanation. Our argument is based on the insight that the trade-off between current and future reproduction often results in polymorphic populations in which some individuals put more emphasis on future fitness returns than others. Life-history theory predicts that such differences in fitness expectations should result in systematic differences in risk-taking behaviour. Individuals with high future expectations (who have much to lose) should be more risk-averse than individuals with low expectations. This applies to all kinds of risky situations, so individuals should consistently differ in their behaviour. By means of an evolutionary model we demonstrate that this basic principle results in the evolution of animal personalities. It simultaneously explains the coexistence of behavioural types, the consistency of behaviour through time and the structure of behavioural correlations across contexts. Moreover, it explains the common finding that explorative behaviour and risk-related traits like boldness and aggressiveness are common characteristics of animal personalities. |
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Theoretical Biology Group, Centre for Ecological and Evolutionary Studies, University of Groningen, Kerklaan 30, 9751 NN Haren, The Netherlands |
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1476-4687 |
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PMID:17538618 |
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no |
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Equine Behaviour @ team @ |
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4098 |
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Permanent link to this record |
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Author |
Bell, A.M. |
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Title |
Evolutionary biology: animal personalities |
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2007 |
Publication |
Nature |
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Nature |
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447 |
Issue |
7144 |
Pages |
539-540 |
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Aggression/physiology/psychology; Animals; Behavior, Animal/*physiology; *Evolution; Humans; *Models, Biological; Personality/genetics/*physiology; Reproduction/genetics/physiology; Risk-Taking; Selection (Genetics) |
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ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
PMID:17538607 |
Approved |
no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4099 |
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Permanent link to this record |