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https://www.readbyqxmd.com/read/28350860/uniquely-altered-transcripts-are-associated-with-immune-preservation-in-hiv-infection
#1
Michelle Zanoni, Ítalo Karmann Aventurato, James Hunter, Maria Cecilia Araripe Sucupira, Ricardo Sobhie Diaz
The mechanisms underlying host HIV control hold much promise in the search for a functional HIV cure. We investigated the host genomic signatures in elite controllers or rapid progressors following recent infection and the correlates of immune reconstitution during combination antiretroviral therapy. We characterized the HIV-specific longitudinal host transcriptional response of peripheral blood mononuclear cells from elite controllers, rapid progressors, immune responders and non-responders using a RT-qPCR array in a cohort of recently HIV-infected Brazilian individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28346833/arthroscopic-hip-surgery-in-the-elite-athlete-comparison-of-female-and-male-competitive-athletes
#2
Kotaro R Shibata, Shuichi Matsuda, Marc R Safran
BACKGROUND: Few studies have published the results of hip arthroscopic surgery in elite athletes and none studying a significant number of elite female athletes. PURPOSE: (1) To compare sex-based differences in the ability to return to prior competitive sports activity after arthroscopic hip surgery. (2) To compare sex-based differences in the type of sports activity, diagnosis, and treatment in athletes requiring hip arthroscopic surgery. STUDY DESIGN: Cohort study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28346122/non-targeted-metabolomics-in-sport-and-exercise-science
#3
Liam M Heaney, Kevin Deighton, Toru Suzuki
Metabolomics incorporates the study of metabolites that are produced and released through physiological processes at both the systemic and cellular levels. Biological compounds at the metabolite level are of paramount interest in the sport and exercise sciences, although research in this field has rarely been referred to with the global 'omics terminology. Commonly studied metabolites in exercise science are notably within cellular pathways for adenosine triphosphate production such as glycolysis (e.g., pyruvate and lactate), β-oxidation of free fatty acids (e...
March 27, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28344531/hand-and-wrist-injuries-in-elite-boxing-a-longitudinal-prospective-study-2005-2012-of-the-great-britain-olympic-boxing-squad
#4
Michael Loosemore, Joseph Lightfoot, Ian Gatt, Mike Hayton, Chris Beardsley
Background: The purpose of this investigation was to explore prospectively the nature and duration of hand and wrist injuries in training and competition in the Great Britain (GB) amateur boxing squad between 2005 and 2012. Methods: Longitudinal prospective injury surveillance of the GB boxing squad was performed from 2005 to 2012. The location, region affected, description, and the duration of each injury were recorded by the team doctor and team physiotherapist. We recorded whether the injury occurred during competition or training and also whether it was a new or a recurrent injury...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344463/curcumin-and-piperine-supplementation-and-recovery-following-exercise-induced-muscle-damage-a-randomized-controlled-trial
#5
Barthélémy Delecroix, Abd Elbasset Abaïdia, Cédric Leduc, Brian Dawson, Grégory Dupont
The aim of this study was to analyze the effects of oral consumption of curcumin and piperine in combination on the recovery kinetics after exercise-induced muscle damage. Forty-eight hours before and following exercise-induced muscle damage, ten elite rugby players consumed curcumin and piperine (experimental condition) or placebo. A randomized cross-over design was performed. Concentric and isometric peak torque for the knee extensors, one leg 6 seconds sprint performance on a non-motorized treadmill, counter movement jump performance, blood creatine kinase concentration and muscle soreness were assessed immediately after exercise, then at 24h, 48h and 72h post-exercise...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344462/effects-of-neuromuscular-training-on-the-rear-foot-angle-kinematics-in-elite-women-field-hockey-players-with-chronic-ankle-instability
#6
Eunkuk Kim, Hokyung Choi, Jung-Hoon Cha, Jong-Chul Park, Taegyu Kim
The aims of this study were to investigate the ankle position, the changes and persistence of ankle kinematics after neuromuscular training in athletes with chronic ankle instability (CAI). A total of 21 national women's field hockey players participated (CAI = 12, control = 9). Ankle position at heel strike (HS), midstance (MS), and toe touch (TT) in the frontal plane during walking, running and landing were measured using 3D motion analysis. A 6-week neuromuscular training program was undertaken by the CAI group...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344460/intra-and-inter-rater-reliability-of-the-modified-tuck-jump-assessment
#7
Azahara Fort-Vanmeerhaeghe, Alicia M Montalvo, Rhodri S Lloyd, Paul Read, Gregory D Myer
The Tuck Jump Assessment (TJA) is a clinician-friendly screening tool that was designed to support practitioners with identification of neuromuscular deficits associated with anterior cruciate ligament injury. This study aimed to evaluate the inter- and intra-rater reliability of the modified scoring (0 to 2) TJA to add an additional range of objectivity for each criterion. A total of 24 elite youth volleyball athletes (12 males and 12 females) were included in this study. Each participant's recorded performance of the TJA was scored independently by two raters across ten criteria using the modified scale...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344456/caffeine-ingestion-improves-repeated-freestyle-sprints-in-elite-male-swimmers
#8
Paul S R Goods, Grant Landers, Sacha Fulton
The purpose of this investigation was to determine the efficacy of a moderate dose of caffeine to improve repeat-sprint performance in elite freestyle sprinters. Nine highly trained male swimmers performed 6 x 75 m freestyle sprints on two occasions 1-h after consuming either 3 mg·kg(-1) caffeine (CAF), or placebo, in a cross-over manner. Capillary blood samples for the analysis of blood lactate concentration and pH were collected after the 1(st), 3(rd), and 5(th) sprint, while heart rate and perceived exertion (RPE) were collected after every sprint...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344455/running-and-metabolic-demands-of-elite-rugby-union-assessed-using-traditional-metabolic-power-and-heart-rate-monitoring-methods
#9
Romain Dubois, Thierry Paillard, Mark Lyons, David McGrath, Olivier Maurelli, Jacques Prioux
The aims of this study were (1) to analyze elite rugby union game demands using 3 different approaches: traditional, metabolic and heart rate-based methods (2) to explore the relationship between these methods and (3) to explore positional differences between the backs and forwards players. Time motion analysis and game demands of fourteen professional players (24.1 ± 3.4 y), over 5 European challenge cup games, were analyzed. Thresholds of 14.4 km·h(-1), 20 W.kg(-1) and 85% of maximal heart rate (HRmax) were set for high-intensity efforts across the three methods...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28344446/prediction-of-tennis-performance-in-junior-elite-tennis-players
#10
Tamara Kramer, Barbara C H Huijgen, Marije T Elferink-Gemser, Chris Visscher
Predicting current and future tennis performance can lead to improving the development of junior tennis players. The aim of this study is to investigate whether age, maturation, or physical fitness in junior elite tennis players in U13 can explain current and future tennis performance. The value of current tennis performance for future tennis performance is also investigated. A total of 86 junior elite tennis players (boys, n = 44; girls, n = 42) U13 (aged: 12.5 ± 0.3 years), and followed to U16, took part in this study...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28343160/an-injury-prevention-pyramid-for-elite-sports-teams
#11
Philip Alexander Coles
No abstract text is available yet for this article.
March 25, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28339749/multi-generational-genome-wide-association-studies-identify-chromosomal-regions-associated-with-ascites-phenotype
#12
K J Tarrant, S Dey, R Kinney, N B Anthony, D D Rhoads
Ascites is a multi-faceted disease commonly observed in fast growing broilers, which is initiated when the body is insufficiently oxygenated. A series of events follow, including an increase in pulmonary artery pressure, right ventricle hypertrophy, and accumulation of fluid in the abdominal cavity and pericardium. Advances in management practices along with improved selection programs have decreased ascites incidence in modern broilers. However, ascites syndrome remains an economically important disease throughout the world, causing estimated losses of $100 million per year...
February 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28338908/metabolite-profiling-of-barley-flag-leaves-under-drought-and-combined-heat-and-drought-stress-reveals-metabolic-qtls-for-metabolites-associated-with-antioxidant-defense
#13
Sven Eduard Templer, Alexandra Ammon, David Pscheidt, Otilia Ciobotea, Christian Schuy, Christopher McCollum, Uwe Sonnewald, Anja Hanemann, Jutta Förster, Frank Ordon, Maria von Korff, Lars Matthias Voll
Barley (Hordeum vulgare L.) is among the most stress-tolerant crops; however, not much is known about the genetic and environmental control of metabolic adaptation of barley to abiotic stresses. We have subjected a genetically diverse set of 81 barley accessions, consisting of Mediterranean landrace genotypes and German elite breeding lines, to drought and combined heat and drought stress at anthesis. Our aim was to (i) investigate potential differences in morphological, physiological, and metabolic adaptation to the two stress scenarios between the Mediterranean and German barley genotypes and (ii) identify metabolic quantitative trait loci (mQTLs)...
March 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338405/physiological-responses-to-treadmill-running-with-body-weight-support-in-hypoxia-compared-to-normoxia
#14
Ben J Lee, Charles Douglas Thake
CONTEXT: Anecdotal reports suggest elite sports clubs combine lower body positive pressure (LBPP) rehabilitation with a hypoxic stimulus in order to maintain or increase physiological and metabolic strain, which are reduced during LBPP. However the effects of hypoxia on cardiovascular and metabolic response during LBPP rehabilitation is unknown. OBJECTIVE: Evaluate the use of normobaric hypoxia as a means to increase physiological strain during body weight supported (BWS) running...
March 24, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28338378/validation-of-a-maximal-incremental-skating-test-performed-on-a-slide-board-comparison-with-treadmill-skating
#15
Tatiane Piucco, Fernando Diefenthaeler, Rogério Soares, Juan M Murias, Guillaume Y Millet
PURPOSE: the aim of this study was to investigate the criterion validity of a maximal incremental skating test performed on a slide board (SB). METHODS: Twelve sub-elite speed skaters performed a maximal skating test on a treadmill and on a SB. Gas exchange threshold (GET), respiratory compensation point (RCP) and maximal variables were determined. RESULTS: oxygen uptake (V̇O2) (31.0 ± 3.2 and 31.4 ± 4.1 mL∙min(-1)∙kg(-1)), percentage of maximal oxygen uptake (V̇O2max) (66...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28338358/a-mismatch-between-athlete-practice-and-current-sports-nutrition-guidelines-among-elite-female-and-male-middle-and-long-distance-athletes
#16
Ida Aliisa Heikura, Trent Stellingwerff, Antti A Mero, Arja Leena Tuulia Uusitalo, Louise Mary Burke
Contemporary nutrition guidelines promote a variety of periodized and time-sensitive recommendations, but current information regarding the knowledge and practice of these strategies among world-class athletes is limited. The aim of this study was to investigate this theme by implementing a questionnaire on dietary periodization practices in national/international level female (n=27) and male (n=21) middle- and long-distance runners/race-walkers. The questionnaire aimed to gain information on between and within-day dietary choices, as well as timing of pre- and post-training meals and practices of training with low or high carbohydrate (CHO) availability...
March 24, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28337894/actn3-ace-genotypes-and-mitochondrial-genome-in-professional-soccer-players%C3%A2-performance
#17
V Galeandro, A Notarnicola, A Bianco, S Tafuri, L Russo, V Pesce, B Moretti, V Petruzzella
Two nuclear genes, ACTN3, encoding for the α-actinin skeletal muscle isoform 3, and ACE encoding the angiotensin-converting enzyme, have both been associated with quantitative physical performance traits in the general population. The purpose of our study was to assess the association between the two nuclear gene variants, R577X (rs1815739) in ACTN3 and I/D (rs4340) in ACE, with elite athletes’ performance and the effect of training on the mitochondrial DNA (mtDNA) content in peripheral blood. We evaluated the genotypes and frequencies of ACTN3 R577X and ACE I/D polymorphisms between soccer players (n = 43) and healthy non-athletic controls (n = 128)...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337210/assessing-wheat-traits-by-spectral-reflectance-do-we-really-need-to-focus-on-predicted-trait-values-or-directly-identify-the-elite-genotypes-group
#18
Miguel Garriga, Sebastián Romero-Bravo, Félix Estrada, Alejandro Escobar, Iván A Matus, Alejandro Del Pozo, Cesar A Astudillo, Gustavo A Lobos
Phenotyping, via remote and proximal sensing techniques, of the agronomic and physiological traits associated with yield potential and drought adaptation could contribute to improvements in breeding programs. In the present study, 384 genotypes of wheat (Triticum aestivum L.) were tested under fully irrigated (FI) and water stress (WS) conditions. The following traits were evaluated and assessed via spectral reflectance: Grain yield (GY), spikes per square meter (SM2), kernels per spike (KPS), thousand-kernel weight (TKW), chlorophyll content (SPAD), stem water soluble carbohydrate concentration and content (WSC and WSCC, respectively), carbon isotope discrimination (Δ(13)C), and leaf area index (LAI)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28337046/what-skills-can-buy-transmission-of-advantage-through-cognitive-and-noncognitive-skills
#19
Catherine Doren, Eric Grodsky
Parental income and wealth contribute to children's success but are at least partly endogenous to parents' cognitive and noncognitive skills. We estimate the degree to which mothers' skills measured in early adulthood confound the relationship between their economic resources and their children's postsecondary education outcomes. Analyses of NLSY79 suggest that maternal cognitive and noncognitive skills attenuate half of parental income's association with child baccalaureate college attendance, a fifth of its association with elite college attendance, and a quarter of its association with bachelor's degree completion...
October 2016: Sociology of Education
https://www.readbyqxmd.com/read/28335617/operative-treatment-of-traumatic-hallux-valgus-in-elite-athletes
#20
D Jeff Covell, Craig R Lareau, Robert B Anderson
BACKGROUND: Traumatic hallux valgus is an increasingly common injury in the athletic population and represents a unique variant of turf toe. Failure to appropriately recognize and treat these injuries can lead to continued pain, decreased performance, progressive deformities, and ultimately degeneration of the hallux metatarsophalangeal joint. Limited literature currently exists to assist in the diagnosis, management, and operative treatment. METHODS: Nineteen patients were reviewed in this series, including 12 National Football League, 6 college, and 1 high school player who was a college prospect...
March 1, 2017: Foot & Ankle International
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