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Author |
Vermeulen, A.D.; Evans, D.L. |
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Title |
Measurements of fitness in thoroughbred racehorses using field studies of heart rate and velocity with a global positioning system |
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Journal Article |
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Year |
2006 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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Volume  |
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36 |
Pages |
113-117 |
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Keywords |
Animals; Female; Geographic Information Systems; Heart Rate/*physiology; Horses/*physiology; Male; Physical Conditioning, Animal/*physiology; Physical Fitness/*physiology; Running/physiology |
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REASONS FOR PERFORMING STUDY: Field based studies of changes in fitness are difficult to conduct in galloping Thoroughbreds. Measurements of heart rate (HR) and real time velocity with a global positioning system (GPS) could provide a method for routine field studies of fitness. OBJECTIVE: To investigate measurements of fitness in the field without using multiple, standardised steps of increasing velocity in the exercise test. METHODS: Twelve healthy 3- to 5-year-old Thoroughbreds were used in the study of reliability, and twelve 2-year-old Thoroughbreds in the investigation of the effect of training. Five second averages of velocity and HR were recorded during a typical fast exercise training session, using a GPS and Polar HR monitor. A standardised exercise test protocol was not used. Regression analyses using trot and gallop data were used to calculate velocities at HR of 200 beats/min (V200), and at maximal HR (VHRmax). Data were collected on consecutive 'fast' day training sessions to assess the reliability of measurements. The effect of training was investigated with fitness tests in weeks 2 and 6 of 'fast' training. Absolute and relative differences were calculated to evaluate reliability, and paired t tests were used to detect an effect of training. RESULTS: VHRmax, V200 and HRmax were reliable measurements of fitness, with mean differences of 2% or less. Reliability of VHRmax was not dependent on VHRmax. VHRmax and V200 both increased significantly with training (P<0.01), but there was no effect of training on HRmax. There were no significant changes in the slope or intercept of the regression equations after training. CONCLUSIONS: Velocity and HR measurements during field gallop exercise provided reliable measures of fitness which enabled a measurement of the response to training. POTENTIAL RELEVANCE: This approach offers a simple, noninvasive method for monitoring adaptations to training in the field. |
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Faculty of Veterinary Science, The University of Sydney, New South Wales 2006, Australia |
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PMID:17402404 |
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Equine Behaviour @ team @ |
Serial |
4013 |
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Author |
Kingston, J.K.; Soppet, G.M.; Rogers, C.W.; Firth, E.C. |
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Title |
Use of a global positioning and heart rate monitoring system to assess training load in a group of thoroughbred racehorses |
Type |
Journal Article |
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Year |
2006 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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Volume |
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36 |
Pages |
106-109 |
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Keywords |
Analysis of Variance; Animals; Female; *Geographic Information Systems; Heart Rate/*physiology; Horses/*physiology; Male; Monitoring, Physiologic/veterinary; Physical Conditioning, Animal/*physiology; Satellite Communications; Telemetry/methods/*veterinary |
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REASONS FOR PERFORMING STUDY: Training is an important variable for determining athletic success. Nonetheless, there has been minimal scientific evaluation of racehorse training programmes. Training of racehorses focuses on running the horses at certain speeds using a combination of a stopwatch and rider's 'feel' for a horse's work intensity. Consequently, actual work intensity for individual horses is not clearly defined. OBJECTIVES: To 1) utilise a combined global positioning system (GPS) and heart rate monitor system to quantify training intensity and physiological responses of a group of racehorses undergoing training and racing; and 2) compare the workload measured by the GPS to that timed and recorded daily by a racehorse trainer. METHODS: Nineteen racehorses age 3 years were followed through a traditional training and racing programme over a 4 month period. Daily GPS and heart rate data together with the trainer's timing and distance data were collected while the horses were trained. Data were analysed using an ANOVA for repeated measures. RESULTS: The combined GPS/heart rate monitoring system detected different heart rate responses in individual horses subjected to the same training workouts. The average speeds detected with the GPS system were in agreement with average speeds timed by the trainer. However, peak speeds reached during training were significantly greater (P<0.05) than those estimated with stopwatch timing. The horses average training speeds increased significantly over the duration of the training period. CONCLUSIONS AND POTENTIAL RELEVANCE: The results from this study show that a GPS/heart rate monitor system provides a reliable measure of daily workload in horses during training. This technology provides a detailed picture of horses' training sessions and has the potential to provide a greater insight into the types of training that may predispose horses to injury. |
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Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand |
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PMID:17402402 |
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Equine Behaviour @ team @ |
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4014 |
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Author |
Leleu, C.; Cotrel, C. |
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Title |
Body composition in young standardbreds in training: relationships to body condition score, physiological and locomotor variables during exercise |
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Journal Article |
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Year |
2006 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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36 |
Pages |
98-101 |
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Keywords |
Adipose Tissue/metabolism; Animals; Body Composition/*physiology; Body Constitution/*physiology; Body Weight/physiology; Exercise Test/veterinary; Female; Gait/physiology; Heart Rate/*physiology; Horses/*physiology; Lactates/blood; Male; Muscle, Skeletal/metabolism; Physical Conditioning, Animal/*physiology |
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REASONS FOR PERFORMING STUDY: Body composition is an essential factor in athletic performance of human sprinters and long distance runners. However, in horses, many questions remain concerning relationships between body composition and performance in the different equine activities. OBJECTIVES: To determine relationships between body composition, body score, physiological and locomotor variables in a population of young Standardbreds in training. METHODS: Twenty-four 2-year-old Standardbreds were studied, body condition on a scale 0-5 and bodyweight recorded, and height at withers measured. Percentage of fat (%F), fat mass (FM) and fat free mass (FFM) were estimated echographically. During a standardised exercise test on the track, velocity, heart rate, respiratory frequency and blood lactate concentrations were measured. V4 and V200 (velocity for a blood lactate concentration of 4 mmol/l and velocity of 200 beats/min) calculated. Basic gait variables were measured at 3 different speeds with an accelerometric device. RESULTS: Body composition variables: %F and FM were significantly related to body condition score and physiological variables. Body score was highly correlated to %F (r = 0.64) and FM (r = 0.71). V4 was negatively correlated to %F (r = -0.59) and FM (r = -0.60), P<0.05. V200 was also negatively related to %F and FM, (r = -0.39 and r = -0.37, respectively, P<0.1). No relationships were found between body composition and gait characteristics. CONCLUSIONS: Body composition was closely related to indirect measurements of aerobic capacity, which is a major factor of athletic performance in middle distance running horses. POTENTIAL RELEVANCE: As in human athletes, trainers should take special note to evaluate optimal bodyweight and body composition of race horses to optimise performance. |
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Pegase Mayenne, Departement de Medecine du Sport, Centre Hospitalier, 53 015 Laval, France |
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PMID:17402400 |
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Equine Behaviour @ team @ |
Serial |
4015 |
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Author |
Verheyen, K.L.; Price, J.S.; Wood, J.L. |
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Title |
Fracture rate in Thoroughbred racehorses is affected by dam age and parity |
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Journal Article |
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Year |
2006 |
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Vet J |
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This study's aim was to determine the effects of dam age and parity on the rate of fracture in offspring in Thoroughbred racehorses in training for flat racing. It was hypothesised that first foals and those from older mares would have a higher fracture rate than subsequent foals and those from younger mares. A two-year observational cohort study collected data from eight trainers on 335 horses that were monitored since the start of their training as yearlings. Multivariable Poisson regression analyses showed that first foals had a significantly lower fracture rate than subsequent ones (RR=0.33; 95% CI=0.12, 0.89; P=0.02) and rate of fracture decreased with increasing dam age (RR=0.91 per year increase in dam age; 95% CI=0.83, 0.99; P=0.03). This study shows for the first time that the rate of equine injury may be influenced by factors that affect skeletal development. Further research on intra-uterine and peri-natal determinants of injury risk in later life in horses is needed. |
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Department of Veterinary Clinical Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK |
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1090-0233 |
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PMID:16996756 |
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Equine Behaviour @ team @ |
Serial |
4027 |
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Author |
Tomasello, M.; Call, J. |
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Title |
Do chimpanzees know what others see ? or only what they are looking at? |
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2006 |
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Rational Animals? |
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371-384 |
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Oxford University Press |
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Oxford |
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Nudds, M.; Hurley, S. |
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Equine Behaviour @ team @ |
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4094 |
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Author |
Karl von, Philippe |
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Title |
Irrwege der modernen Dressur. Die Suche nach der “klassischen” Alternative |
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2006 |
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Philippe Karl, einer der mutigsten Kritiker einer Dressurwelt, deren Ausbildungsmethoden einzige darauf abzielen, ein Pferd möglichst schnell in mit hohen Preisgeldern dotierten Prüfungen an den Start zu bringen, legt mit diesem Buch den Finger in die Wunde.
Auf der Grundlage der psychischen, anatomischen und physiologischen Voraussetzungen des Pferdes analysiert der Autor die Grundsätze der modernen Dressur, wie sie in den Richtlinien der Deutschen Reiterlichen Vereinigung festgeschrieben sind. |
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978-3861274131 |
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Brunsbek |
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Equine Behaviour @ team @ |
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4401 |
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Author |
Trillmich, F.; Rehling, A. |
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Title |
Animal Communication: Parent-Offspring |
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2006 |
Publication |
Encyclopedia of Language & Linguistics |
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284-288 |
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Begging Strategies; Communication; Competition; Feeding Strategies; Fitness; Parental Care; Parent-Offspring Conflict; Recognition; Sibling Conflict |
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Parent-offspring communication has evolved under strong selection to guarantee that the valuable resource of parental care is expended efficiently on raising offspring. To ensure allocation of parental care to their own offspring, individual recognition becomes established in higher vertebrates when the young become mobile at a time when a nest site can no longer provide a safe cue to recognition. Such recognition needs to be established by rapid, sometimes imprinting-like, processes in animals producing precocial offspring. In parents, offering strategies that stimulate feeding and entice offspring to approach the right site have evolved. Such parental signals can be olfactory, acoustic, or visual. In offspring, begging strategies involve shuffling for the best place to obtain food – be this the most productive teat or the best position in the nest. This involves signals that make the offspring particularly obvious to the parent. Parents often feed young according to their signaling intensity but may also show favoritism for weaker offspring. Offspring signals also serve to communicate the continuing presence of the young and may thereby maintain brood-care behavior in parents. Internal processes in parents may end parental care irrespective of further signaling by offspring, thus ensuring that offspring cannot manipulate parents into providing substantially more care than is optimal for their own fitness. |
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Elsevier |
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Oxford |
Editor |
Keith Brown |
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9780080448541 |
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Equine Behaviour @ team @ |
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4642 |
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Author |
Schiele, K. A. L. M. |
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Title |
Einfluss reduzierter Futterzuteilung zweier verschiedener Heuqualitäten auf Passagedauer und Verdaulichkeit bei Ponies |
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2006 |
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Über die Auswirkungen der Futtermenge und der Futterqualität auf die scheinbare
Verdaulichkeit und die mittlere Retentionszeit beim Pferd gibt es zahlreiche Arbeiten
mit zum Teil recht widersprüchlichen Ergebnissen. So existiert eine Hypothese,
wonach bei geringerer Energiedichte im Futter die TS-Aufnahme steigt und die
mittlere Retentionszeit abnimmt. Dadurch soll bei Equiden eine ausreichende
Energieaufnahme trotz geringer Energiedichte im Futter erreicht werden (JANIS
1976, DUNCAN et al.1990). In nahezu allen Studien zu diesem Thema wurden Futter
mit unterschiedlichem Nährstoffgehalt bei konstanter Futteraufnahme bzw. ad libitum
Fütterung untersucht. Nur bei PEARSON et al. (2001 und 2006) findet sich für jedes
Futter ein Vergleich von zwei verschiedenen Futtermengen, nämlich ad libitum und
70% der ad libitum Futteraufnahme. Systematische Untersuchungen bei Pferden zu
Futtermengen, die unterhalb des Erhaltungsbedarfes liegen, fehlen bisher.
In der vorliegenden Arbeit sollen deshalb im Wesentlichen drei Fragen geklärt
werden:
· Gibt es einen Einfluss von Futtermengen unterhalb des Erhaltungsbedarfes auf
die mittlere Retentionszeit?
· Haben Veränderungen der mittleren Retentionszeit einen Einfluss auf die
scheinbare Verdaulichkeit?
· Wie unterscheiden sich diese Effekte in Abhängigkeit von der
Futterzusammensetzung?
Die Ergebnisse dieser Studie sollen vor allem bezüglich ihrer Auswirkungen auf die
praktische Pferdefütterung betrachtet werden. |
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Doctoral thesis |
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Equine Behaviour @ team @ |
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4952 |
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Author |
Brooks, S. M. |
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Title |
Animal-assisted psychotherapy and equine-fasciliated psychotherapy. |
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2006 |
Publication |
Psychotherapy and Equine Facilitated Psychotherapy, |
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196-217 |
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Guilford Press |
Place of Publication |
New York |
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Webb, N.B. |
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Equine Behaviour @ team @ |
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5071 |
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Author |
Simmonds, K. |
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Title |
The longterm effect of ostheopathic manipulationon lateral bending in the lumbar region |
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2006 |
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Ph.D. thesis |
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Equine Behaviour @ team @ |
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5672 |
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