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https://www.readbyqxmd.com/read/28930879/repeat-effort-performance-is-reduced-24-h-following-acute-dehydration-in-mixed-martial-arts-athletes
#1
Oliver R Barley, Fiona Iredale, Dale W Chapman, Amanda Hopper, Chris Abbiss
This study sought to determine the influence of acute dehydration on physical performance and physiology in Mixed Martial Arts (MMA). MMA athletes (n=14; age: 23±4 years), completed in a randomised counterbalanced order a dehydration protocol, (DHY: 3 h cycling at 60 W in 40°C to induce 5% dehydration) or thermoneutral control (25°C: CONT) exercise, followed by ad libitum fluid/food intake. Performance testing (a repeat sled push test, medicine ball chest throw and vertical jump) was completed 3 and 24 h following the intervention, while urine and blood samples were collected before, 20 min, 3 and 24 h following the intervention...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28925969/caffeine-improves-basketball-performance-in-experienced-basketball-players
#2
Carlos Puente, Javier Abián-Vicén, Juan José Salinero, Beatriz Lara, Francisco Areces, Juan Del Coso
The aim of this study was to determine the effect of caffeine intake on overall basketball performance in experienced players. A double-blind, placebo-controlled, randomized experimental design was used for this investigation. In two different sessions separated by one week, 20 experienced basketball players ingested 3 mg of caffeine/kg of body mass or a placebo. After 60 min, participants performed 10 repetitions of the following sequence: Abalakov jump, Change-of-Direction and Acceleration Test (CODAT) and two free throws...
September 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28925825/conscious-control-is-associated-with-freezing-of-mechanical-degrees-of-freedom-during-motor-learning
#3
Wouter F van Ginneken, Jamie M Poolton, Catherine M Capio, John van der Kamp, Cynthia S Y Choi, Richard S W Masters
This study investigated whether conscious control is associated with freezing of mechanical degrees of freedom during motor learning. Participants practiced a throwing task using either error-strewn or error-reduced practice protocols, which encourage high or low levels of conscious control, respectively. After 24 hr, participants engaged in a series of delayed retention and transfer tests. Furthermore, propensity for conscious control was assessed using participants' ratings and freezing was gauged through movement variability of the throwing arm...
September 19, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28922090/microsaccades-and-interest-areas-during-free-viewing-sport-task
#4
Alessandro Piras, Milena Raffi, Monica Perazzolo, Ivan Malagoli Lanzoni, Salvatore Squatrito
Microsaccades are important fixation eye movements for visual scene perception. Compared to novices, athletes make fewer fixations of longer duration toward limited interest areas crucial for action prediction. Thus, our aim was to study the microsaccade features during those fixations. Gaze behaviour of expert and novice table tennis players was recorder during a task in which subjects were instructed to predict the direction of the ball after the opponent's throw. Three interest areas from the opponent's body and one from the ball trajectory were identified...
September 18, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28919494/shoulder-injury-in-water-polo-a-systematic-review-of-incidence-and-intrinsic-risk-factors
#5
REVIEW
Andrea H Miller, Kerrie Evans, Roger Adams, Gordon Waddington, Jeremy Witchalls
OBJECTIVES: Water polo is a popular water-based contact sport that involves swimming, throwing and defending. Cumulatively, these repetitive overhead activities are thought to increase the risk of shoulder injury and, subsequently to affect players' physical conditioning as well as team performance. The purpose of this review was to examine available evidence relating to shoulder injury rates and risk factors for shoulder injury in water polo. DESIGN: Systematic review METHODS: CINAHL, AUSPORT, Pubmed, Pedro and SPORTDiscus databases were searched for original research papers using the predefined terms ("water polo") AND (shoulder OR glenohumeral* OR arm OR "upper limb")...
August 31, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28919168/contribution-of-interaction-torques-during-dart-throwing-differences-between-novices-and-experts
#6
Nasser Rezzoug, Clint Hansen, Philippe Gorce, Brice Isableu
We examined if experts and novices show different utilization of the torque components impulses during dart throwing. Participants threw darts continuously at a dartboard aiming for the centre (target bull's eye). The upper-limb joint torque impulses were obtained through inverse dynamics with anthropometric and motion capture data as input. Depending on the joint degree of freedom (DOF) and movement phase (acceleration and follow-through), three main strategies of net torque (NET) impulse generation through joint muscle (MUS) and interaction (INT) torque impulses were highlighted...
September 14, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28917992/securing-extraocular-muscles-in-strabismus-surgery-biomechanical-analysis-of-knot-tying-technique
#7
Steven E Brooks
BACKGROUND: The safe and precise reattachment of extraocular muscles requires a technical approach that minimizes any opportunity for the muscle to slip intraoperatively or postoperatively while minimizing surgical risk. Biomechanical testing can provide important quantitative information about the tensile properties of different knot configurations that may inform surgical technique. METHODS: A precision digital force gauge was used to assess the tensile strength created by different knot tying techniques and configurations in human sclera using 6-0 polyglactin 910 suture...
September 13, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28916491/controversy-and-debate-on-clinical-genomics-sequencing-paper-2-clinical-genome-wide-sequencing-don-t-throw-out-the-baby-with-the-bathwater
#8
Shelin Adam, Jan M Friedman
Genome-wide (exome or whole genome) sequencing with appropriate genetic counselling should be considered for any patient with a suspected mendelian disease that has not been identified by conventional testing.Clinical genome-wide sequencing provides a powerful and effective meansof identifying specific genetic causes of serious disease and improving clinical care.
September 12, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28915771/low-back-pain-with-impact-at-17-years-of-age-is-predicted-by-early-adolescent-risk-factors-from-multiple-domains-analysis-of-the-western-australian-pregnancy-cohort-raine-study
#9
Anne Smith, Darren Beales, Peter O'Sullivan, Natasha Bear, Leon Straker
Study Design Prospective cohort study of the Western Australian Pregnancy Cohort (Raine) Study. Background Low back pain (LBP) commonly develops in adolescence and is a significant risk factor for adult LBP. A broad range of factors have been associated with the development of adolescent LBP, but prior literature has limitations related to characterisation of LBP and scope of risk factors considered. Objective This study aimed to identify potential factors contributing to the development of LBP with and without impact at 17 years of age, utilising a broad range of exposures at 14...
September 15, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28912001/response-to-clinical-genome-wide-sequencing-don-t-throw-out-the-baby-with-the-bathwater
#10
Brenda J Wilson, Fiona Alice Miller, François Rousseau
We enjoyed our colleagues' paper, and see ourselves as pursuing the same goal: the application of NGS technologies to improve clinical care and promote better health outcomes, particularly where alternative approaches are often inadequate. We find we agree on some points, but on others, regrettably, we're still far apart.
September 11, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28911079/do-not-throw-the-baby-out-with-the-bathwater-select-a-personalized-de-escalated-lenvatinib-schedule-allows-response-in-locally-advanced-dtc-while-controlling-major-drug-related-bleeding
#11
C Resteghini, L D Locati, P Bossi, C Bergamini, M Guzzo, L Licitra
No abstract text is available yet for this article.
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28910993/transtendon-repair-in-partial-articular-supraspinatus-tendon-tear
#12
Leonardo Osti, Matteo Buda, Mattia Andreotti, Raffaella Osti, Leo Massari, Nicola Maffulli
Introduction: Partial thickness rotator cuff tears (PTRCTs) are common, with an incidence between 17% and 37%, and a high prevalence in throwing athletes. Different surgical procedures are suggested when partial tears involve the articular portion of the rotator cuff, including arthroscopic debridement of the tear, debridement with acromioplasty, tear completion and repair, and lately transtendon repair. This systematic review describes the transtendon repair and examines indications, contraindications, complications and clinical outcome...
September 1, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28910670/mental-imagery-of-gravitational-motion
#13
Silvio Gravano, Myrka Zago, Francesco Lacquaniti
There is considerable evidence that gravitational acceleration is taken into account in the interaction with falling targets through an internal model of Earth gravity. Here we asked whether this internal model is accessed also when target motion is imagined rather than real. In the main experiments, naïve participants grasped an imaginary ball, threw it against the ceiling, and caught it on rebound. In different blocks of trials, they had to imagine that the ball moved under terrestrial gravity (1g condition) or under microgravity (0g) as during a space flight...
August 9, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28906432/total-power-radiometer-for-medical-sensor-applications-using-matched-and-mismatched-noise-sources
#14
Woojin Park, Jinho Jeong
This paper presents a simple total power radiometer to noninvasively measure the temperature of the human body. The proposed 3-GHz radiometer consists of an antenna collecting the noise power generated by a target, a low-noise and high-gain receiver amplifying the noise power, and a detector converting the noise power to voltage. A single-pole-triple-throw (SP3T) switch is placed between the antenna and the receiver, while a personal computer is used to control the SP3T switch, collect and process the data such as detector output voltages and physical temperatures of the reference noise sources and the target...
September 14, 2017: Sensors
https://www.readbyqxmd.com/read/28903639/when-silence-is-not-golden-why-acknowledgment-matters-even-when-being-excluded
#15
Selma C Rudert, Andrew H Hales, Rainer Greifeneder, Kipling D Williams
Following ostracism, individuals are highly sensitive to social cues. Here we investigate whether and when minimal acknowledgment can improve need satisfaction following an ostracism experience. In four studies, participants were either ostracized during Cyberball (Studies 1 and 2) or through a novel apartment-application paradigm (Studies 3 and 4). To signal acknowledgment following ostracism, participants were either thrown a ball a few times at the end of the Cyberball game, or received a message that was either friendly, neutral, or hostile in the apartment-application paradigm...
May 2017: Personality & Social Psychology Bulletin
https://www.readbyqxmd.com/read/28902761/care-of-water-polo-players
#16
Jennifer D Stromberg
Water polo is a team sport that combines swimming with overhead throwing and wrestling. This places water polo players at risk for a unique group of illnesses and injuries. In addition to the medical problems and injuries seen in competitive swimmers, water polo players are at risk for a variety of traumatic injuries, including concussions, eye injuries, tympanic membrane perforation, fractures, dislocations, and lacerations. Repetitive overhead throwing also places these athletes at risk for related injuries, such as shoulder problems, including rotator cuff strain and impingement, and elbow problems, such as ulnar collateral ligament injuries, posteromedial impingement, and osteochondritis dissecans of the radial capitellum...
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28901216/creatine-or-vitamin-d-supplementation-in-individuals-with-a-spinal-cord-injury-undergoing-resistance-training-a-double-blinded-randomized-pilot-trial
#17
Samuel Amorim, Vitor Hugo Teixeira, Rui Corredeira, Maria Cunha, Bruno Maia, Paulo Margalho, Joana Pires
Purpose Determine whether creatine or vitamin D supplementation improves muscle strength in individuals with spinal cord injury undergoing resistance training. Methods Thirteen male and one female with spinal cord injury, from two Portuguese rehabilitation centers, were randomized to creatine (3g daily), vitamin D (25000 IU each two weeks) or placebo group in a double-blind design. All participants performed progressive resistance training during eight weeks. The outcome measures, obtained at baseline and after intervention, included: Sum of four skinfolds; Corrected arm muscle area; Seated medicine ball throw; Handgrip strength with dynamometer; Manual wheelchair slalom test and one repetition maximum for Chest press, Triceps, Pec deck and Lat pulldown...
September 13, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28901019/isolation-and-characterization-of-pathogenic-vibrio-alginolyticus-from-sea-cage-cultured-cobia-rachycentron-canadum-linnaeus-1766-%C3%A2-in-india
#18
P Rameshkumar, A K A Nazar, M A Pradeep, C Kalidas, R Jayakumar, G Tamilmani, M Sakthivel, A K Samal, S Sirajudeen, V Venkatesan, B M Nazeera
Mass mortalities of cobia Rachycentron canadum sub-adults occurred during August 2013 in cage culture at the Gulf of Mannar, Mandapam Tamil Nadu, India. The epizootic of disease was started with typical classical clinical signs followed by the acute mortality. Grossly, severe haemorrhage and congestion was observed in the gastric mucosa. Abdomen was distended with peritoneal fluid. Heart revealed haemopericardium and fibrinous pericardium. Histologically, the gastric mucosa showed severe erosion and necrosis...
September 12, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28899656/greater-ankle-strength-anaerobic-and-aerobic-capacity-and-agility-predict-ground-combat-military-occupational-school-graduation-in-female-marines
#19
Katelyn Fleishman Allison, Karen A Keenan, Meleesa F Wohleber, Katherine A Perlsweig, Erin R Pletcher, Mita Lovalekar, Kim Beals, Lawrence C Coleman, Bradley C Nindl
Women can serve in all military occupational specialties (MOS); however, musculoskeletal and physiological characteristics that predict successful completion of ground combat MOS schools by female Marines are unknown. OBJECTIVES: To determine which demographic, musculoskeletal, and physiological characteristics predict graduation from infantry and vehicle ground combat MOS schools in female Marines. DESIGN: Prospective cohort study. METHODS: Prior to MOS school, the following were assessed in 62 female Marines (22...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28899609/constructing-experience-event-models-from-perception-to-action
#20
REVIEW
Lauren L Richmond, Jeffrey M Zacks
Mental representations of everyday experience are rich, structured, and multimodal. In this article we consider the adaptive pressures that led to human construction of such representations, arguing that structured event representations enable cognitive systems to more effectively predict the trajectory of naturalistic everyday activity. We propose an account of how cortical systems and the hippocampus (HPC) interact to construct, maintain, and update event representations. This analysis throws light on recent research on story comprehension, event segmentation, episodic memory, and action planning...
September 9, 2017: Trends in Cognitive Sciences
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