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https://www.readbyqxmd.com/read/28829938/fluoride-ion-release-of-self-adhesive-resin-cements-and-their-potential-to-inhibit-in-situ-enamel-and-dentin-demineralization
#1
V A Pellizzari, A C Michels, S T Luiz, E M de Souza, Cpm Tabchoury, R N Rached
OBJECTIVE: This study evaluated in situ the potential of a glass ionomer and self-adhesive resin cements to inhibit enamel and dentin demineralization around indirect restorations exposed to cariogenic challenge. The cumulative fluoride release (CFR) of materials was measured in water and acid. METHODS: Seventy blocks cut from human molars received two indirect composite restorations (one in enamel and another in dentin) luted with Ketac Cem EasyMix (GIC, positive control), SeT (SeT), Maxcem Elite (Max), Smart Cem2 (Smart), and RelyX Unicem 2 (Unicem2)...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28829688/test-retest-reliability-of-physiological-parameters-in-elite-junior-distance-runners-following-allometric-scaling
#2
Richard C Blagrove, Glyn Howatson, Philip R Hayes
This study aimed to quantify the intra-individual reliability of a number of physiological variables in a group of national and international young distance runners. Sixteen (8 male, 8 female) participants (16.7 ± 1.4 years) performed a submaximal incremental running assessment followed by a maximal running test, on two occasions separated by no more than seven days. Maximal oxygen uptake (V̇O2max), speed at V̇O2max (km h(-1)), running economy and speed and heart rate (HR) at fixed blood lactate concentrations were determined...
August 22, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28828382/verification-of-three-phase-dependency-analysis-bayesian-network-learning-method-for-maize-carotenoid-gene-mining
#3
Jianxiao Liu, Zonglin Tian
BACKGROUND AND OBJECTIVE: Mining the genes related to maize carotenoid components is important to improve the carotenoid content and the quality of maize. METHODS: On the basis of using the entropy estimation method with Gaussian kernel probability density estimator, we use the three-phase dependency analysis (TPDA) Bayesian network structure learning method to construct the network of maize gene and carotenoid components traits. RESULTS: In the case of using two discretization methods and setting different discretization values, we compare the learning effect and efficiency of 10 kinds of Bayesian network structure learning methods...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28828095/the-physique-of-elite-female-artistic-gymnasts-a-systematic-review
#4
Sarita Bacciotti, Adam Baxter-Jones, Adroaldo Gaya, José Maia
It has been suggested that successful young gymnasts are a highly select group in terms of the physique. This review summarizes the available literature on elite female gymnasts' anthropometric characteristics, somatotype, body composition and biological maturation. The main aims were to identify: (i) a common physique and (ii) the differences, if any, among competitive/performance levels. A systematic search was conducted online using five different databases. Of 407 putative papers, 17 fulfilled all criteria and were included in the review...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828094/variability-of-metabolic-power-data-in-elite-soccer-players-during-pre-season-matches
#5
Matthias Wilhelm Hoppe, Christian Baumgart, Mirko Slomka, Ted Polglaze, Jürgen Freiwald
This study aimed to determine the within-subject variability of GPS-derived metabolic power data in elite soccer players across several pre-season matches and compare the variability of high metabolic power, velocity, acceleration and deceleration running. Additionally, differences in metabolic power data among playing positions and relationships with various physical abilities were also investigated. Metabolic power data from 12 outfield starting players competing in the German Bundesliga were collected during five pre-season matches using GPS-technology (10 Hz)...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828092/evaluation-of-the-illinois-change-of-direction-test-in-youth-elite-soccer-players-of-different-age
#6
Yassine Negra, Helmi Chaabene, Samiha Amara, Slobodan Jaric, Mehréz Hammami, Younés Hachana
Change of direction ability is an essential pre-requisite in team sports athletes. The Illinois change of direction test has been routinely used for testing change of direction ability in soccer players. The aim of the present study was to evaluate the Illinois change of direction test in young elite soccer players in terms of its reliability, usefulness and relationship with body size. A total of one hundred and ninety-four male, national-level soccer players were recruited. They were classified into four age groups (U-8, U-10, U-12 and U-14)...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828087/high-speed-running-and-sprinting-profiles-of-elite-soccer-players
#7
Javier Miñano-Espin, Luis Casáis, Carlos Lago-Peñas, Miguel Ángel Gómez-Ruano
Real Madrid was named as the best club of the 20th century by the International Federation of Football History and Statistics. The aim of this study was to compare if players from Real Madrid covered shorter distances than players from the opposing team. One hundred and forty-nine matches including league, cup and UEFA Champions League matches played by the Real Madrid were monitored during the 2001-2002 to the 2006-2007 seasons. Data from both teams (Real Madrid and the opponent) were recorded. Altogether, 2082 physical performance profiles were examined, 1052 from the Real Madrid and 1031 from the opposing team (Central Defenders (CD) = 536, External Defenders (ED) = 491, Central Midfielders (CM) = 544, External Midfielders (EM) = 233, and Forwards (F) = 278)...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828084/somatotype-level-of-competition-and-performance-in-attack-in-elite-male-volleyball
#8
Nikiforos Giannopoulos, George Vagenas, Konstantinos Noutsos, Karolina Barzouka, Nikolaos Bergeles
This study investigated the relationship between somatotype, level of competition, and performance in attack in elite level male volleyball players. The objective was to test for the potential covariation of competition level (Division A1 vs. A2) and playing position (hitters vs. centers vs. opposites) considering performance in attack. Anthropometric, body composition and somatotype variables were measured according to the Heath-Carter method. The attack actions of 144 players from 48 volleyball matches were analyzed and their performance was rated using a 5-point numerical scale...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828083/increased-prevalence-of-the-il-6-174c-genetic-polymorphism-in-long-distance-swimmers
#9
Sigal Ben-Zaken, Yoav Meckel, Dan Nemet, Eias Kassem, Alon Eliakim
The IL-6 -174G/C single nucleotide polymorphism (SNP) functionally affects IL-6 activity, with the G-allele associated with increased IL-6 levels. The C-allele was found to be associated with exercise-induced skeletal muscle damage. The aim of the present study was to examine the association between the IL-6 -174G/C polymorphism and athletic performance among elite swimmers and runners. The study sample included 180 track and field athletes and 80 swimmers. Track and field athletes were assigned to three sub-groups: long-distance runners, middle-distance runners and short-distance runners...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28828080/morphological-physiological-and-skating-performance-profiles-of-male-age-group-elite-ice-hockey-players
#10
Maxime Allisse, Pierre Sercia, Alain-Steve Comtois, Mario Leone
The purpose of this study was to describe the evolution of morphological, physiological and skating performance profiles of elite age-group ice hockey players based on repeated measures spread over one season. In addition, the results of fitness tests and training programs performed in off-ice conditions and their relationship with skating performance were analyzed. Eighteen high level age-group ice hockey players (13.1 ± 0.6 years) were assessed off and on-ice at the beginning and at the end of the hockey season...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28827808/effects-of-cooking-methods-on-starch-and-sugar-composition-of-sweetpotato-storage-roots
#11
Shuying Wei, Guoquan Lu, Heping Cao
Sweetpotato has rich nutrition, good ecological adaptability and high yield. There is a lack of knowledge about the effects of cooking methods on starch and sugar components in elite Chinese cultivars. In this study, sweetpotato storage roots from four cultivars "Xinxiang", "Jinyu", "Zimei" and "Yuzishu 263" were treated by baking, boiling and steaming and subsequently analyzed for starch content, amylase activity and sugar contents including glucose, fructose, sucrose and maltose. Results indicated that cooking reduced starch content and final amylase activity and increased reducing sugar content especially maltose content, but did not have significant influence on non-reducing sugar content...
2017: PloS One
https://www.readbyqxmd.com/read/28827315/pain-in-elite-athletes-neurophysiological-biomechanical-and-psychosocial-considerations-a-narrative-review
#12
REVIEW
Brian Hainline, Judith A Turner, J P Caneiro, Mike Stewart, G Lorimer Moseley
Pain is a common problem among elite athletes and is frequently associated with sport injury. Both injury and pain interfere with peak performance. Pain management should be based on the physiological, anatomical and psychosocial influences on the individual's pain and is not equivalent to injury management, which focuses on musculoskeletal recovery and return-to-play. This narrative review provides a foundation for understanding the differing causes and types of pain in elite athletes, thereby serving as a springboard for comprehensive pain management...
September 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28827314/international-olympic-committee-consensus-statement-on-pain-management-in-elite-athletes
#13
Brian Hainline, Wayne Derman, Alan Vernec, Richard Budgett, Masataka Deie, Jiří Dvořák, Chris Harle, Stanley A Herring, Mike McNamee, Willem Meeuwisse, G Lorimer Moseley, Bade Omololu, John Orchard, Andrew Pipe, Babette M Pluim, Johan Ræder, Christian Siebert, Mike Stewart, Mark Stuart, Judith A Turner, Mark Ware, David Zideman, Lars Engebretsen
Pain is a common problem among elite athletes and is frequently associated with sport injury. Both pain and injury interfere with the performance of elite athletes. There are currently no evidence-based or consensus-based guidelines for the management of pain in elite athletes. Typically, pain management consists of the provision of analgesics, rest and physical therapy. More appropriately, a treatment strategy should address all contributors to pain including underlying pathophysiology, biomechanical abnormalities and psychosocial issues, and should employ therapies providing optimal benefit and minimal harm...
September 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28826615/glycerol-3-phosphate-phosphatase-pgp-role-in-intermediate-metabolism-and-target-for-cardiometabolic-diseases
#14
REVIEW
Elite Possik, S R Murthy Madiraju, Marc Prentki
Metabolic diseases, including obesity, type 2 diabetes, and metabolic syndrome arise because of disturbances in glucose and fat metabolism, which impact associated physiological events such as insulin secretion and action, fat storage and oxidation. Even though, decades of research has contributed to our current understanding of the components involved in glucose and fat metabolism and their regulation, that led to the development of many therapeutics, there are still many unanswered questions. Glycerol-3-phosphate (Gro3P), which is formed during glycolysis, is at the intersection of glucose and fat metabolism, and the availability of this metabolite can regulate energy and intermediary metabolism in mammalian cells...
August 4, 2017: Biochimie
https://www.readbyqxmd.com/read/28826371/-if-it-s-not-iron-it-s-iron-f-cking-biggest-ironman-personal-trainers-s-views-on-health-norms-orthorexia-and-deviant-behaviours
#15
Linn Håman, Eva-Carin Lindgren, Hillevi Prell
Orthorexia nervosa (ON) describes a pathological obsession with healthy eating to avoid ill health. In the Swedish context, ON is also understood in terms of unhealthy exercise. Fitness gyms are popular health-promoting places, but exercise-related problems, disordered eating and ON-like behaviour are increasing. Personal trainers (PTs) play an important role in detecting unhealthy behaviours. The aim of the present study was to illuminate PTs' understandings of healthy and unhealthy exercise and eating behaviours in relation to orthorexia nervosa in a fitness gym context...
December 2017: International Journal of Qualitative Studies on Health and Well-being
https://www.readbyqxmd.com/read/28826314/a-prospective-cohort-study-on-symptoms-of-common-mental-disorders-among-dutch-elite-athletes
#16
Vincent Gouttebarge, Ruud Jonkers, Maarten Moen, Evert Verhagen, Paul Wylleman, Gino Kerkhoffs
OBJECTIVE: Scientific knowledge about symptoms of common mental disorders in elite sports is scarce. Consequently, the objectives of the study were to (i) establish the 12-month incidence of symptoms of common mental disorders (CMD; distress, anxiety/depression, sleep disturbance, adverse alcohol use, eating disorders) among Dutch elite athletes and (ii) explore their potential association with several stressors (being injured, recent life events, career dissatisfaction). METHODS: A prospective cohort study with a 12-month follow-up period was conducted...
August 21, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28821745/metabolomics-and-genomics-combine-to-unravel-the-pathway-for-the-presence-of-fragrance-in-rice
#17
Venea Dara Daygon, Mariafe Calingacion, Louise C Forster, James J De Voss, Brett D Schwartz, Ben Ovenden, David E Alonso, Susan R McCouch, Mary J Garson, Melissa A Fitzgerald
Since it was first characterised in 1983, 2-acetyl-1-pyrroline (2AP) has been considered to be the most important aroma compound in rice. In this study, we show four other amine heterocycles: 6-methyl, 5-oxo-2,3,4,5-tetrahydropyridine (6M5OTP), 2-acetylpyrrole, pyrrole and 1-pyrroline, that correlate strongly with the production of 2AP, and are present in consistent proportions in a set of elite aromatic rice varieties from South East Asia and Australia as well as in a collection of recombinant inbred lines (RILs) derived from indica Jasmine-type varieties, Australian long grain varieties (temperate japonica) and Basmati-type rice (Grp V)...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821187/genetic-dissection-of-seedling-stage-salinity-tolerance-in-rice-using-introgression-lines-of-a-salt-tolerant-landrace-nona-bokra
#18
Venkata Ramana Rao Puram, John Ontoy, Steven Linscombe, Prasanta K Subudhi
Salinity is an important abiotic stress affecting rice production worldwide. Development of salt tolerant varieties is the most feasible approach for improving rice productivity in salt affected soils. In rice, seedling stage salinity tolerance is crucial for better crop establishment. Quantitative trait loci (QTL) mapping using introgression lines (ILs) is useful for identification and simultaneous transfer of desirable alleles into elite genetic background. In the present study, 138 ILs derived from the cross between a high yielding elite salt susceptible japonica rice cultivar Jupiter and a salt tolerant indica landrace Nona Bokra were evaluated for salt tolerance at seedling stage in a hydroponics experiment and were genotyped using 126 simple sequence repeat markers...
September 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28820953/a-fluorescence-based-high-throughput-assay-for-the-identification-of-anticancer-reagents-targeting-fructose-1-6-bisphosphate-aldolase
#19
Eun Jeong Cho, Ashwini K Devkota, Gabriel Stancu, Ramakrishna Edupunganti, Garth Powis, Kevin N Dalby
A high rate of glycolysis, which supplies energy and materials for anabolism, is observed in a wide range of tumor cells, making it a potential pathway to control cancer growth. ALDOA is a multifunctional enzyme in the glycolytic pathway and also promotes HIF-1α, which is of importance in hypoxic solid tumors. The current method for assaying ALDOA activity involves monitoring the consumption of NADH in vitro using absorbance or intrinsic fluorescence via a coupled enzymatic reaction. Here, we report the development of a homogeneous biochemical assay that can overcome limitations of current methods, in particular for the application of high-throughput drug screening...
August 1, 2017: SLAS Discovery
https://www.readbyqxmd.com/read/28820854/a-brief-review-of-handgrip-strength-and-sport-performance
#20
John Cronin, Trent Lawton, Nigel Harris, Andrew Kilding, Daniel Travis McMaster
Tests of handgrip strength (HGS) and handgrip force (HGF) are commonly used across a number of sporting populations. Measures of HGS and HGF have also been utilized by practitioners and researchers to evaluate links with sports performance. This article, firstly evaluates the validity and reliability of various handgrip dynamometers (HGD) and HGF sensors, providing recommendations for procedures to ensure precise and reliable data are collected as part of an athlete testing battery. Secondly, the differences in HGS between elite and sub-elite athletes and the relationships between HGS, HGF, and sports performance are discussed...
August 15, 2017: Journal of Strength and Conditioning Research
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