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https://www.readbyqxmd.com/read/28525338/different-training-schedules-influence-platelet-aggregation-in-show-jumping-horses
#1
C Giannetto, F Arfuso, F Fazio, E Giudice, S Di Pietro, D Bruschetta, G Piccione
Depending on the intensity, duration and type of physical exercise, equine metabolism has to adapt to nervous, cardiovascular, endocrine and respiratory system requirements. In horses, exercise and training are known to have considerable effects on the mechanisms of hemostatic system involving platelet activity. The aim of the present study was to evaluate the effect of different training schedules on platelet aggregation in 15 Italian Saddle jumping horses. Animals were divided into three equal groups: Group A was subjected to a high intensity-training program; group B to a light training program, group C included sedentary horses...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28524066/a-flight-phase-terrain-following-control-strategy-for-stable-and-robust-hopping-of-a-one-legged-robot-under-large-terrain-variations
#2
Natan Shemer, Amir Degani
This work demonstrates a simple, once per step, flight-phase control method for robots running on a planar unknown rough-terrain environment. The robot used to exemplify these control strategies is the ParkourBot, a Spring-Loaded Inverted Pendulum (SLIP)-based robot. The SLIP model is widely used for the description of humans and animals running motion and has been the basis for many robots. A known control scheme for increasing robustness of the conservative, SLIP model is the Swing Leg Retraction (SLR) method...
May 19, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28523640/biomedical-risk-factors-of-achilles-tendinopathy-in-physically-active-people-a-systematic-review
#3
REVIEW
Maria Kozlovskaia, Nicole Vlahovich, Kevin J Ashton, David C Hughes
BACKGROUND: Achilles tendinopathy is the most prevalent tendon disorder in people engaged in running and jumping sports. Aetiology of Achilles tendinopathy is complex and requires comprehensive research of contributing risk factors. There is relatively little research focussing on potential biomedical risk factors for Achilles tendinopathy. The purpose of this systematic review is to identify studies and summarise current knowledge of biomedical risk factors of Achilles tendinopathy in physically active people...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28522976/trunk-muscle-activity-during-drop-jump-performance-in-adolescent-athletes-with-back-pain
#4
Steffen Mueller, Josefine Stoll, Juliane Mueller, Michael Cassel, Frank Mayer
In the context of back pain, great emphasis has been placed on the importance of trunk stability, especially in situations requiring compensation of repetitive, intense loading induced during high-performance activities, e.g., jumping or landing. This study aims to evaluate trunk muscle activity during drop jump in adolescent athletes with back pain (BP) compared to athletes without back pain (NBP). Eleven adolescent athletes suffering back pain (BP: m/f: n = 4/7; 15.9 ± 1.3 y; 176 ± 11 cm; 68 ± 11 kg; 12...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28513277/effect-of-gastrocnemius-kinesio-taping-on-countermovement-jump-performance-and-vertical-stiffness-following-muscle-fatigue
#5
Sahar Boozari, Mohammad Ali Sanjari, Ali Amiri, Ismail Ebrahimi Takamjani
CONTEXT: Kinesio Tape (KT) is a widely used intervention in the fields of sports and rehabilitation. However, its effects on lower extremity behavior during functional activities are not entirely known. OBJECTIVE: To test the hypothesis that application of KT can change performance and vertical stiffness during the countermovement jump (CMJ) before and after a fatigue protocol. DESIGN: A pre and post design to study the effect of KT in two situations, pre- and post-fatigue...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28512566/regulating-thermosalient-behaviour-in-three-polymorphs
#6
Maximilian J Werny, Jagadese J Vittal
Three polymorphs of a di-chloro-N-salicylideneaniline derivative show visually impressive jumping and sudden blasting behaviours on heating due to phase transitions.
May 1, 2017: IUCrJ
https://www.readbyqxmd.com/read/28505816/minimum-energetic-cost-to-maintain-a-target-nonequilibrium-state
#7
Jordan M Horowitz, Kevin Zhou, Jeremy L England
In the absence of external driving, a system exposed to thermal fluctuations will relax to equilibrium. However, the constant input of work makes it possible to counteract this relaxation and maintain the system in a nonequilibrium steady state. In this article, we use the stochastic thermodynamics of Markov jump processes to compute the minimum rate at which energy must be supplied and dissipated to maintain an arbitrary nonequilibrium distribution in a given energy landscape. This lower bound depends on two factors: the undriven probability current in the equilibrium state and the distance from thermal equilibrium of the target distribution...
April 2017: Physical Review. E
https://www.readbyqxmd.com/read/28501556/behavioral-and-physiological-reactions-in-dogs-to-a-veterinary-examination-owner-dog-interactions-improve-canine-well-being
#8
Erika Csoltova, Michaël Martineau, Alain Boissy, Caroline Gilbert
In order to improve well-being of dogs during veterinary visits, we aimed to investigate the effect of human social interactions on behavior and physiology during routine examination. Firstly, we assessed the impact of a standardized veterinary examination on behavioral and physiological indicators of stress in dogs. Secondly, we examined whether the owner's tactile and verbal interactions with the dog influenced behavioral and physiological stress-associated parameters. A randomized within-subjects crossover design was used to examine behavior (n=33), rectal temperature (n=33), heart rate (HR) (n=18), maximal ocular surface temperature (max OST) (n=13) and salivary cortisol concentrations (n=10) in healthy privately owned pet dogs...
May 10, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28498226/anterior-cruciate-ligament-injury-return-to-play-function-and-long-term-considerations
#9
Fernando Sepúlveda, Luis Sánchez, Eduardo Amy, William Micheo
Anterior cruciate ligament tears are common and affect young individuals who participate in jumping and pivoting sports. After injury many individuals undergo ligament reconstruction (ACLR) but do not return to play, suffer recurrent injury and osteoarthritis. Outcome studies show that after ACLR, 81% of individuals return to sports, 65% return to their preinjury level and 55% return to competitive sports. Systematic reviews place the risk of ipsilateral retears at 5.8% and contralateral injuries at 11.8%, with recent reports of over 20% failure rate...
May 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28494320/can-segmental-model-reductions-quantify-whole-body-balance-accurately-during-dynamic-activities
#10
Parunchaya Jamkrajang, Mark A Robinson, Weerawat Limroongreungrat, Jos Vanrenterghem
When investigating whole-body balance in dynamic tasks, adequately tracking the whole-body centre of mass (CoM) or derivatives such as the extrapolated centre of mass (XCoM) can be crucial but add considerable measurement efforts. The aim of this study was to investigate whether reduced kinematic models can still provide adequate CoM and XCoM representations during dynamic sporting tasks. Seventeen healthy recreationally active subjects (14 males and 3 females; age, 24.9±3.2years; height, 177.3±6.9cm; body mass 72...
April 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28493042/on-the-stochastic-evolution-of-finite-populations
#11
Fabio A C C Chalub, Max O Souza
This work is a systematic study of discrete Markov chains that are used to describe the evolution of a two-types population. Motivated by results valid for the well-known Moran (M) and Wright-Fisher (WF) processes, we define a general class of Markov chains models which we term the Kimura class. It comprises the majority of the models used in population genetics, and we show that many well-known results valid for M and WF processes are still valid in this class. In all Kimura processes, a mutant gene will either fixate or become extinct, and we present a necessary and sufficient condition for such processes to have the probability of fixation strictly increasing in the initial frequency of mutants...
May 10, 2017: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28490630/understanding-phospholipid-function-why-are-there-so-many-lipids
#12
William Dowhan
In the 1970's phospholipids were still considered mere building blocks of the membrane lipid bilayer, but the subsequent realization that phospholipids could also serve as second messengers brought new interest to the field. My own passion for the unique amphipathic properties of lipids led me to seek other, non-signaling functions for phospholipids, particularly in their interactions with membrane proteins. This seemed the last frontier in protein chemistry and enzymology to be conquered. I was fortunate to find my way to Eugene Kennedy's laboratory where both membrane proteins and phospholipids were foci of study thus providing a jumping-off point for advancing our fundamental understanding of lipid synthesis, membrane protein biosynthesis, phospholipid and membrane protein trafficking and the cellular roles of phospholipids...
May 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28488937/traditional-balance-and-slackline-training-are-associated-with-task-specific-adaptations-as-assessed-with-sensorimotor-tests
#13
Samuel Volery, Navrag Singh, Eling D de Bruin, Renate List, Marc Morten Jaeggi, Brigitte Mattli Baur, Silvio Lorenzetti
The purpose of this study was to measure alterations in sensorimotor skills and balance resulting from slackline training and conventional balance training. Forty-three physically fit subjects were randomized into three groups. Two groups practiced three times a week for 15 minutes, including at least once supervised session, on the slackline or perform conventional balance training for 6 weeks. The control group was not allowed to perform any balance training. Before and after the intervention, the subjects underwent sensorimotor and strength tests...
May 10, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28488136/bilateral-differences-in-muscle-fascicle-architecture-are-not-related-to-the-preferred-leg-in-jumping-athletes
#14
Jeroen Aeles, Sietske Lenchant, Liesbeth Vanlommel, Benedicte Vanwanseele
PURPOSE: In many sports, athletes have a preferred leg for sport-specific tasks, such as jumping, which leads to strength differences between both legs, yet the underlying changes in force-generating mechanical properties of the muscle remain unknown. The purpose of this study was to investigate whether the muscle architecture of the medial gastrocnemius (MG) is different between both legs in well-trained jumping athletes and untrained individuals. In addition, we investigated the effect of two ankle joint positions on ultrasound muscle architecture measurements...
May 9, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28480166/albuterol-as-an-adjunctive-treatment-to-enzyme-replacement-therapy-in-infantile-onset-pompe-disease
#15
Yin-Hsiu Chien, Wuh-Liang Hwu, Ni-Chung Lee, Fuu-Jen Tsai, Dwight D Koeberl, Wen-Hui Tsai, Pao-Chin Chiu, Chaw-Liang Chang
BACKGROUND: Early initiation of enzyme replacement therapy (ERT) with recombinant human acid alpha-glucosidase is an effective treatment for patients with infantile-onset Pompe disease (IOPD) but cannot prevent a slow progression of myopathy. Albuterol has been shown to be helpful in adult patients with Pompe disease, and therefore, we administered an open-label adjunctive therapy with albuterol in IOPD patients undergoing ERT. METHODS: Fourteen patients, aged 2 to 12 years, were enrolled in this study; all of them had a disease onset before 12 months of life, and 13 of them were ambulatory because of early initiation of ERT...
June 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28475552/analysis-of-the-effect-size-of-overweight-in-muscular-strength-tests-among-adolescents-reference-values-according-to-sex-age-and-bmi
#16
Emilio J Martínez-López, Manuel De La Torre-Cruz, Sara Suarez-Manzano, Alberto Ruiz-Ariza
The aim of this paper is to quantify the effect size of overweight on the results of muscular strength tests in adolescents and to report percentile tables based on sex, age and BMI. The study hypothesized that the effect size obtained from the difference between normal-weight and overweight youth would be greater than the differences between sexes within the same age group. A total of 11044 Spanish adolescents (48.5% girls) aged 14.39 ± 1.21 years (range: 12-16 years) from 42 secondary schools participated in the research...
April 25, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28475036/determinants-of-host-species-range-in-plant-viruses
#17
Benoît Moury, Frédéric Fabre, Eugénie Hébrard, Rémy Froissart
Prediction of pathogen emergence is an important field of research, both in human health and in agronomy. Most studies of pathogen emergence have focused on the ecological or anthropic factors involved rather than on the role of intrinsic pathogen properties. The capacity of pathogens to infect a large set of host species, i.e. to possess a large host range breadth (HRB), is tightly linked to their emergence propensity. Using an extensive plant virus database, we found that four traits related to virus genome or transmission properties were strongly and robustly linked to virus HRB...
April 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28474729/utilizing-electronic-medical-records-to-discover-changing-trends-of-medical-behaviors-over-time
#18
Liangying Yin, Zhengxing Huang, Wei Dong, Chunhua He, Huilong Duan
OBJECTIVES: Medical behaviors are playing significant roles in the delivery of high quality and cost-effective health services. Timely discovery of changing frequencies of medical behaviors is beneficial for the improvement of health services. The main objective of this work is to discover the changing trends of medical behaviors over time. METHODS: This study proposes a two-steps approach to detect essential changing patterns of medical behaviors from Electronic Medical Records (EMRs)...
May 5, 2017: Methods of Information in Medicine
https://www.readbyqxmd.com/read/28469759/factors-determining-success-in-youth-judokas
#19
Goran Kuvačić, Saša Krstulović, Petra Đapić Caput
The aim of this study was to compare two models of determining factors for success in judo. The first model (Model A) included testing motor abilities of high-level Croatian judokas in the cadet age category. The sample in Model A consisted of 71 male and female judokas aged 16 ± 0.6 years who were divided into four subsamples according to sex and weight category. The second model (Model B) consisted of interviewing 40 top-level judo experts on the importance of motor abilities for cadets' success in judo...
February 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28469755/can-different-complex-training-improve-the-individual-phenomenon-of-post-activation-potentiation
#20
Zong-Rong Chen, Shin-Liang Lo, Min-Hsien Wang, Ching-Fang Yu, Hsien-Te Peng
The aims of the present study were (a) to determine whether the two types of complex training and vibration complex training would improve the individual phenomenon of post-activation potentiation (PAP) for every athlete in a team setting; and (b) to compare the acute effect of resistance and plyometric exercise, whole body vibration, complex training and vibration complex training on vertical jump performance. The participants were ten male division I college volleyball and basketball players. They were asked to perform three vertical jumps as a pre-test and were then randomly assigned to one of five PAP protocols, resistance exercise using half squat exercise, plyometric exercise using drop jumps with individualized drop height, whole body vibration using squats on a vibration plate, complex training combining resistance exercise with plyometric exercise, vibration complex training combining whole body vibration with plyometric exercise...
February 2017: Journal of Human Kinetics
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