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Author |
Gibson, K.T.; Burbidge, H.M.; Anderson, B.H. |
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Title |
Tendonitis of the branches of insertion of the superficial digital flexor tendon in horses |
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Journal Article |
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Year |
1997 |
Publication |
Australian Veterinary Journal |
Abbreviated Journal |
Aust Vet J |
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Volume |
75 |
Issue |
4 |
Pages |
253-256 |
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Keywords |
Animals; Carpus, Animal/pathology/physiopathology/ultrasonography; Horse Diseases/*diagnosis/pathology/ultrasonography; Horses; Prognosis; Retrospective Studies; Tendinopathy/diagnosis/pathology/*veterinary; Tendon Injuries/diagnosis/pathology/veterinary; Tendons/pathology/physiopathology/ultrasonography; Ultrasonography/methods/veterinary |
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Abstract |
OBJECTIVE: To describe clinical findings, ultrasonographic features and outcome of injury to the branches of insertion of the superficial digital flexor (SDF) tendon in horses. DESIGN: Retrospective study of 14 cases. PROCEDURE: Fourteen Thoroughbred horses with tendonitis affecting the branches of insertion of the SDF tendon were examined for lameness, location and amount of swelling, and the presence of other musculoskeletal abnormalities. The flexor tendons were assessed by ultrasonographic examination, and recommendations were made for management of the cases. Outcome was assessed by re-examination of some horses, direct communication with the owner or trainer, and examination of race records. RESULTS: The lateral SDF branch was affected in 10 horses; the medial branch in three, and both branches in one horse. Two horses had concurrent injuries to the SDF tendon in the metacarpal region of the contralateral limb. Ultrasonographic findings included swelling of the affected SDF branch, peritendinous fluid accumulation, disruption of normal fibre alignment on sagittal scan, and variable loss of echogenicity. As healing occurred, there was return of normal echogenicity, but normal fibre alignment did not return completely and apparent adhesions formed between the affected SDF branch and adjacent structures. Seven of 10 horses which returned to their previous use were able to compete without further tendon injury. Recurrence of injury occurred in one case, and another two horses developed tendonitis in the metacarpal region. One horse was retired from racing but was able to compete at dressage without recurrence of injury. Two horses were retired for breeding without returning to training, and one horse was sold and lost to follow up but did not race. CONCLUSION: The prognosis is fair for return to previous use following injury to the branches of insertion of the SDF tendon in athletic horses. |
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Department of Veterinary Clinical Sciences, Massey University, Palmerston North, New Zealand |
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0005-0423 |
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PMID:9140649 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3739 |
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Author |
Barrey, E.; Galloux, P. |
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Title |
Analysis of the equine jumping technique by accelerometry |
Type |
Journal Article |
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Year |
1997 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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Volume |
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Issue |
23 |
Pages |
45-49 |
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Keywords |
*Acceleration; Analysis of Variance; Animals; Forelimb/physiology; Hindlimb/physiology; Horses/*physiology; Locomotion/*physiology; Movement/physiology; Time Factors |
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Abstract |
The purpose of this study was to demonstrate the relationships between jumping technique and dorsoventral acceleration measured at the sternum. Eight saddle horses of various jumping abilities competed on a selective experimental show jumping course including 14 obstacles. An accelerometric belt fastened onto the thorax continuously measured the dorsoventral acceleration during the course. At each jump, 11 locomotor parameters (acceleration peaks, durations and stride frequency) were obtained from the dorsoventral acceleration-time curves. The type of obstacle significantly influenced the hindlimb acceleration peak at take-off and the landing acceleration peak (P<0.01). The poor jumpers exhibited a higher mean forelimb acceleration peak at take-off, a higher forelimb/hindlimb ratio between peaks of acceleration (F/H), and a lower approach stride frequency than good jumpers. Knocking over an obstacle was significantly associated with a low hindlimb acceleration peak at take-off and a high F/H ratio (P<0.01). In order to observe the continuous changes in the frequency domain of the dorsoventral acceleration during the approach and take-off phase, a Morlet's wavelet analysis was computed for each horse jumping over a series of 3 vertical obstacles. Different patterns of time-frequency images obtained by wavelet analysis were found when the horse either knocked over a vertical obstacle or cleared it. In the latter case, the image pattern showed an instantaneous increase in stride frequency at the end of the approach phase, and a marked energy content in the middle frequency range at take-off. |
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INRA Station de Genetique Quantitative et Appliquee, Groupe cheval, Jouy-en-Josas, France |
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PMID:9354288 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3796 |
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Author |
Galloux, P.; Barrey, E. |
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Title |
Components of the total kinetic moment in jumping horses |
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Journal Article |
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Year |
1997 |
Publication |
Equine Veterinary Journal. Supplement |
Abbreviated Journal |
Equine Vet J Suppl |
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23 |
Pages |
41-44 |
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Keywords |
Algorithms; Animals; Exertion/*physiology; Female; Gravitation; Horses/*physiology; Kinetics; Locomotion/*physiology; Male; Models, Biological; Movement/*physiology; Video Recording |
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Thirty horses were filmed with a panning camera operating at 50 frames/s as they jumped over a 1.20 x 1.20 m fence. The markers of 9 joints on the horse and 7 joints on the rider were tracked in 2D with the TrackEye system. The centre of gravity and moment of inertia of each segment were calculated using a geometric algorithm and a cylindric model, respectively. The kinetic moment of each part of the horse was calculated after filtering, and resampling of data. This method showed the relative contribution of each body segment to the body overall rotation during the take-off, jump and landing phases. It was found that the trunk, hindlimbs and head-neck had the greatest influence. The coordination between the motion of the body segments allowed the horse to control its angular speed of rotation over the fence. This remained nearly constant during the airborne phase (120 +/- 5 degrees/s). During the airborne phase, the kinetic moment was constant because its value was equal to the moment of the external forces (722 +/- 125 kg x m2/s). |
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Ecole Nationale d'Equitation, Terrefort, Saumur, France |
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PMID:9354287 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3797 |
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Author |
Szenci, O.; Palme, R.; Taverne, M.A.; Varga, J.; Meersma, N.; Wissink, E. |
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Title |
Evaluation of false ultrasonographic pregnancy diagnoses in sows by measuring the concentration of unconjugated estrogens in feces |
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Journal Article |
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Year |
1997 |
Publication |
Theriogenology |
Abbreviated Journal |
Theriogenology |
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48 |
Issue |
5 |
Pages |
873-882 |
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On Days 26, 28, and 30 after AI, ultrasonographic pregnancy diagnoses were performed on 207 gilts and sows by using a 3.5 MHz linear-array transducer. Fecal samples were taken from the rectum after each ultrasonographic examination, and the concentrations of unconjugated estrogens in selected samples (n = 73) were measured by RIA. Fecal unconjugated estrogen concentration of 11.7 ng/g feces or higher was indicative of pregnancy. The overall sensitivity and specificity of the ultrasonographic test was 99% for farrowing sows and 73.1% for nonfarrowing sows. With one exception, sows with a false negative diagnosis by ultrasonography on Day 26 were correctly diagnosed pregnant by elevated fecal unconjugated estrogens or repeated ultrasonographic examinations on Days 28 or 30. Return to estrus around the sampling period may cause false positive results in the unconjugated estrogen assay, while early embryonic mortality can result in false positive diagnoses in both the ultrasonographic test and estrogen assay. Although there was a positive correlation between the concentrations of unconjugated estrogens in the feces and litter size at farrowing in the selected sows, it seems very unlikely that fecal estrogens can provide an accurate tool for predicting litter size. |
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University of Veterinary Science, Department of Obstetrics and Reproduction H-1400 Budapest, P.O. Box 2, Hungary |
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0093-691X |
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PMID:16728179 |
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Equine Behaviour @ team @ |
Serial |
4077 |
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Author |
Gallup, G.G.J. |
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Title |
On the rise and fall of self-conception in primates |
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Journal Article |
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Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
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Volume |
818 |
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72-82 |
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Keywords |
Animals; Phylogeny; Primates/*psychology; *Self Concept |
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Department of Psychology, State University of New York at Albany 12222, USA |
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0077-8923 |
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PMID:9237466 |
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Equine Behaviour @ team @ |
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4134 |
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Author |
Swartz, K.B. |
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Title |
What is mirror self-recognition in nonhuman primates, and what is it not? |
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Journal Article |
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Year |
1997 |
Publication |
Annals of the New York Academy of Sciences |
Abbreviated Journal |
Ann N Y Acad Sci |
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818 |
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Pages |
64-71 |
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Keywords |
Animals; *Awareness; *Behavior, Animal; *Ego; Primates/*psychology |
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Department of Psychology, Lehman College of the City University of New York, Bronx 10468, USA |
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0077-8923 |
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PMID:9237465 |
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Equine Behaviour @ team @ |
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4135 |
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Author |
Roberts, M. |
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Book Whole |
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1997 |
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The Man Who Listens to Horses |
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Cited By (since 1996): 17; Export Date: 21 October 2008 |
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Equine Behaviour @ team @ |
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4542 |
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