Read by QxMD icon Read


Marco A F Lopes, Antonio C O Dearo, Allen Lee, Shannon K Reed, Joanne Kramer, P Frank Pai, Yoshiharu Yonezawa, Hiromitchi Maki, Terry L Morgan, David A Wilson, Kevin G Keegan
OBJECTIVE To evaluate head, pelvic, and limb movement to detect lameness in galloping horses. ANIMALS 12 Thoroughbreds. PROCEDURES Movement data were collected with inertial sensors mounted on the head, pelvis, and limbs of horses trotting and galloping in a straight line before and after induction of forelimb and hind limb lameness by use of sole pressure. Successful induction of lameness was determined by measurement of asymmetric vertical head and pelvic movement during trotting. Differences in gallop strides before and after induction of lameness were evaluated with paired-sample statistical analysis and neural network training and testing...
October 2016: American Journal of Veterinary Research
Simon M Danner, Simon D Wilshin, Natalia A Shevtsova, Ilya A Rybak
As speed of locomotion is increasing, most quadrupeds, including mice, demonstrate sequential gait transitions from walk to trot and to gallop and bound. Neural mechanisms underlying these transitions are poorly understood. We propose that the speed-dependent expression of different gaits results from speed-dependent changes in the interactions between spinal circuits controlling different limbs and interlimb coordination. As a result, the expression of each gait depends on (1) left-right interactions within the spinal cord mediated by different commissural interneurons (CINs), (2) fore-hind interactions on each side of the spinal cord, and (3) brainstem drives to rhythm-generating circuits and CIN pathways...
September 16, 2016: Journal of Physiology
Emanuela Dalla Costa, Diana Stucke, Francesca Dai, Michela Minero, Matthew C Leach, Dirk Lebelt
Acute laminitis is a common equine disease characterized by intense foot pain, both acutely and chronically. The Obel grading system is the most widely accepted method for describing the severity of laminitis by equine practitioners, however this method requires movement (walk and trot) of the horse, causing further intense pain. The recently developed Horse Grimace Scale (HGS), a facial-expression-based pain coding system, may offer a more effective means of assessing the pain associated with acute laminitis...
2016: Animals: An Open Access Journal From MDPI
Joseph Andrews Alves, Barbara Ciralli Boerner, Diego Andrés Laplagne
Quadrupedal mammals typically synchronize their respiration with body movements during rhythmic locomotion. In the rat, fast respiration is coupled to head movements during sniffing behavior, but whether respiration is entrained by stride dynamics is not known. We recorded intranasal pressure, head acceleration, instantaneous speed, and ultrasonic vocalizations from male and female adult rats while freely behaving in a social environment. We used high-speed video recordings of stride to understand how head acceleration signals relate to locomotion and developed techniques to identify episodes of sniffing, walking, trotting, and galloping from the recorded variables...
2016: Neural Plasticity
Fabiane Nunes Antunes, Alexandre Severo do Pinho, Ana Francisca Rozin Kleiner, Ana Paula Salazar, Giovana Duarte Eltz, Alcyr Alves de Oliveira Junior, Fernanda Cechetti, Manuela Galli, Aline Souza Pagnussat
Hippotherapy is often carried out for the rehabilitation of children with Cerebral Palsy (CP), with the horse riding at a walking pace. This study aimed to explore the immediate effects of a hippotherapy protocol using a walk-trot pace on spatio-temporal gait parameters and muscle tone in children with Bilateral Spastic CP (BS-CP). Ten children diagnosed with BS-CP and 10 healthy aged-matched children (reference group) took part in this study. The children with BS-CP underwent two sessions of hippotherapy for one week of washout between them...
August 9, 2016: Research in Developmental Disabilities
Gianmarco Sainas, Salvatore Melis, Francesco Corona, Andrea Loi, Giovanna Ghiani, Raffaele Milia, Filippo Tocco, Elisabetta Marongiu, Antonio Crisafulli
PURPOSE: The purpose of the present investigation was to study the metabolic demand and cardiovascular response during a typical horse riding session. METHODS: To this aim, 19 (9 male, 10 female) riders, regularly participating in competitions, were enrolled. They underwent a preliminary, incremental exercise test on a cycle-ergometer to assess their anaerobic threshold (AT) and VO2max. Then, participants underwent a riding training session, which comprised periods of walking, trotting, and cantering for a total of 20 min...
October 2016: European Journal of Applied Physiology
Chih-Hsuan Chang, David J Nesbitt
A series of CH stretch modes in phenyl radical (C6H5) has been investigated via high resolution infrared spectroscopy at sub-Doppler resolution (∼60 MHz) in a supersonic discharge slit jet expansion. Two fundamental vibrations of a1 symmetry, ν1 and ν2, are observed and rotationally analyzed for the first time, corresponding to in-phase and out-of-phase symmetric CH stretch excitation at the ortho/meta/para and ortho/para C atoms with respect to the radical center. The ν1 and ν2 band origins are determined to be 3073...
July 28, 2016: Journal of Chemical Physics
Liesel L Laubscher, Louwrens C Hoffman, Neville I Pitts, Jacobus P Raath
The study investigated the effect of a slow-release formulation of zuclopenthixol acetate (Acunil®) on blue wildebeest ( Connochaetes taurinus ) in captivity. Two groups of trials were conducted using either Acunil or a placebo (control). Animals (Acunil: n = 17; placebo: n = 12) were observed for a 12-hr period before the administration of Acunil or the placebo (pretreatment). After 24 hr, animals were administered Acunil (1.5 mg/kg) or a placebo (1.0-3.0 ml of sterile water) and observed again for 12 hr (posttreatment)...
June 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Cristin A McCarty, Jeffrey J Thomason, Karen D Gordon, Timothy A Burkhart, Jaques S Milner, David W Holdsworth
OBJECTIVE: To assess whether the transient stresses of foot impact with the ground are similar to those found during midstance loading and if the location of high stress correlate with the sites most commonly associated with mechanically induced osteoarthritis (OA). We compared impact stresses in subchondral bone between two subject-specific, three-dimensional, finite-element models of the equine metacarpophalangeal (MCP) joint-one with advanced OA and one healthy, and with similar published data on the stresses that occur at midstance...
2016: PloS One
Jenny Burbage, Lorna Cameron
For female horse riders, breast pain, bra issues and breast size may be important concerns which have yet to be considered. This study aimed to establish the prevalence of breast pain and bra issues in female horse riders and explores the impact of breast size on breast pain and bra issues. A 6-part, 32 question online survey was completed by 1324 females who participated in horse riding activities. Descriptive and chi-squared (χ(2)) analyses were utilised; data for 1265 participants were included in the final analysis...
July 25, 2016: Journal of Sports Sciences
Mishka N Gonsalves, Daniel A Jankovits, Michael L Huber, Adam M Strom, Tanya C Garcia, Susan M Stover
OBJECTIVE: To compare the biomechanical properties of simulated humeral condylar fractures reduced with one of two screw fixation methods: 3.0 mm headless compression screw (HCS) or 3.5 mm cortical bone screw (CBS) placed in lag fashion. METHODS: Bilateral humeri were collected from nine canine cadavers. Standardized osteotomies were stabilized with 3.0 mm HCS in one limb and 3.5 mm CBS in the contralateral limb. Condylar fragments were loaded to walk, trot, and failure loads while measuring construct properties and condylar fragment motion...
September 20, 2016: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
Sarah Jane Hobbs, John E A Bertram, Hilary M Clayton
Background. Although the trot is described as a diagonal gait, contacts of the diagonal pairs of hooves are not usually perfectly synchronized. Although subtle, the timing dissociation between contacts of each diagonal pair could have consequences on gait dynamics and provide insight into the functional strategies employed. This study explores the mechanical effects of different diagonal dissociation patterns when speed was matched between individuals and how these effects link to moderate, natural changes in trotting speed...
2016: PeerJ
James L Carmalt, Bengt Johanssen, Cheryl Waldner
OBJECTIVE: To compare the performance of horses with intermittent dorsal displacement of the soft palate (IDDSP) treated surgically with a control group and to determine whether there was a difference in postoperative performance between horses treated with a staphylectomy or a tie-forward procedure. STUDY DESIGN: A retrospective observational study. ANIMALS: Swedish Warmblood trotting horses (Standardbreds) with endoscopically confirmed IDDSP (n=56) and control horses (n=48) with endoscopically normal upper airways tested using overground endoscopy identified from medical records...
August 2016: Veterinary Surgery: VS
Anna Magdalena Vögele, Rebeka R Zsoldos, Björn Krüger, Theresia Licka
This paper introduces a new method for data analysis of animal muscle activation during locomotion. It is based on fitting Gaussian mixture models (GMMs) to surface EMG data (sEMG). This approach enables researchers/users to isolate parts of the overall muscle activation within locomotion EMG data. Furthermore, it provides new opportunities for analysis and exploration of sEMG data by using the resulting Gaussian modes as atomic building blocks for a hierarchical clustering. In our experiments, composite peak models representing the general activation pattern per sensor location (one sensor on the long back muscle, three sensors on the gluteus muscle on each body side) were identified per individual for all 14 horses during walk and trot in the present study...
2016: PloS One
Michaela M Keener, Charles J Fountaine, John R Keener
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Mari Kaido, Allison H Kilborne, Joy L Sizemore, Nathalie A Reisbig, Turi K Aarnes, Alicia L Bertone
OBJECTIVE To analyze the effects of vertical force peak (VFP) of repition within trials and between trial sessions in horses with naturally occurring appendicular lameness. ANIMALS 20 lame horses acclimated to trotting over a force plate. PROCEDURES Kinetic gait data were collected by use of a force plate regarding affected and contralateral limbs of lame horses that completed 5 valid repetitions in each of 5 sessions performed at 0, 3, 6, 12, and 24 hours, constituting 1 trial/horse. Data were compared within and among repetitions and sessions, and factors influencing VFP values were identified...
July 2016: American Journal of Veterinary Research
Atsushi Hiraga, Shigeru Sugano
After publication of the epic report on equine exercise physiology by Matsuba and Shimamura in 1933, papers on exercise physiology of the racehorse in Japan began appearing in scientific journals and increased in number. In 1944, respiration during exercise at a walk, trot, and canter was measured by recording expiratory sounds with a microphone attached near the nostril. Respiratory frequency during cantering was synchronized with stride frequency, and expiratory sounds were found to occur during the stance phase of the trailing forelimb...
2016: Journal of Equine Science
Mark W Holt
No abstract text is available yet for this article.
July 2016: Journal of Ambulatory Care Management
Zhenyu Gan, Thomas Wiestner, Michael A Weishaupt, Nina M Waldern, C David Remy
This paper presents a simplistic passive dynamic model that is able to create realistic quadrupedal walking, tölting, and trotting motions. The model is inspired by the bipedal spring loaded inverted pendulum (SLIP) model and consists of a distributed mass on four massless legs. Each of the legs is either in ground contact, retracted for swing, or is ready for touch down with a predefined angle of attack. Different gaits, that is, periodic motions differing in interlimb coordination patterns, are generated by choosing different initial model states...
March 2016: Journal of Computational and Nonlinear Dynamics
Amir Afshin Khaki, Arash Khaki, Seyed Shahin Ahmadi
BACKGROUND: Recently, there are increasing concerns and interests about the potential effects of Electromagnetic Field (EMF) on both human and animal health. OBJECTIVE: The goal of this study was to evaluate the harmful effects of 50 Hz non-ionizing EMF on rat oocytes. MATERIALS AND METHODS: In this experimental study 30 rats were randomly taken from laboratory animals and their ags and weights were determined. These 3 month's old rats were randomly divided into 3 groups...
February 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"