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https://www.readbyqxmd.com/read/28642676/international-society-of-sports-nutrition-position-stand-protein-and-exercise
#1
REVIEW
Ralf Jäger, Chad M Kerksick, Bill I Campbell, Paul J Cribb, Shawn D Wells, Tim M Skwiat, Martin Purpura, Tim N Ziegenfuss, Arny A Ferrando, Shawn M Arent, Abbie E Smith-Ryan, Jeffrey R Stout, Paul J Arciero, Michael J Ormsbee, Lem W Taylor, Colin D Wilborn, Doug S Kalman, Richard B Kreider, Darryn S Willoughby, Jay R Hoffman, Jamie L Krzykowski, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review related to the intake of protein for healthy, exercising individuals. Based on the current available literature, the position of the Society is as follows:An acute exercise stimulus, particularly resistance exercise, and protein ingestion both stimulate muscle protein synthesis (MPS) and are synergistic when protein consumption occurs before or after resistance exercise.For building muscle mass and for maintaining muscle mass through a positive muscle protein balance, an overall daily protein intake in the range of 1...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28640882/quantitation-of-underivatized-branched-chain-amino-acids-in-sport-nutritional-supplements-by-capillary-electrophoresis-with-direct-or-indirect-uv-absorbance-detection
#2
Jun Qiu, Jinhao Wang, Zhongqi Xu, Huiqing Liu, Jie Ren
The branched-chain amino acids (BCAAs) including leucine (Leu), isoleucine (Ile) and valine (Val) play a pivotal role in the human body. Herein, we developed capillary electrophoresis (CE) coupled with conventional UV detector to quantify underivatized BCAAs in two kinds of sport nutritional supplements. For direct UV detection at 195 nm, the BCAAs (Leu, two enantiomers of Ile and Val) were separated in a background electrolyte (BGE) consisting of 40.0 mmol/L sodium tetraborate, and 40.0 mmol/L β-cyclodextrin (β-CD) at pH 10...
2017: PloS One
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#3
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28627102/quantitation-of-%C3%AE-aminobutyric-acid-in-equine-plasma-by-hydrophilic-interaction-liquid-chromatography-with-tandem-mass-spectrometry
#4
Rong Yi, Sarah Zhao, Noel Kong, Julia Zhang, Devan Loganathan, Sandrine Mérette, Barbara Morrissey
γ-Aminobutyric acid is the principal inhibitory neurotransmitter in the central nervous system and regulates the neuronal excitability. There has been anecdotal evidence that γ-aminobutyric acid has been used within a few hours prior to competition in equine sports to calm down nervous horses. However, regulating the use of γ-aminobutyric acid is challenging because it is an endogenous substance in the horse. γ-Aminobutyric acid is usually present at low ng/mL levels in equine plasma; therefore, a sensitive method has to be developed to quantify these low background levels...
June 19, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28595329/a-mechanism-for-a-single-nucleotide-intron-shift
#5
Erzsébet Fekete, Michel Flipphi, Norbert Ág, Napsugár Kavalecz, Gustavo Cerqueira, Claudio Scazzocchio, Levente Karaffa
Spliceosomal introns can occupy nearby rather than identical positions in orthologous genes (intron sliding or shifting). Stwintrons are complex intervening sequences, where an 'internal' intron interrupts one of the sequences essential for splicing, generating after its excision, a newly formed canonical intron defined as 'external'. In one experimentally demonstrated configuration, two alternatively excised internal introns, overlapping by one G, disrupt respectively the donor and the acceptor sequence of an external intron, leading to mRNAs encoding identical proteins...
June 8, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28577782/orthobiologics-in-pediatric-sports-medicine
#6
REVIEW
Christopher C Bray, Clark M Walker, David D Spence
Orthobiologics are biological substances that allow injured muscles, tendons, ligaments, and bone to heal more quickly. They are found naturally in the body; at higher concentrations they can aid in the healing process. These substances include autograft bone, allograft bone, demineralized bone matrix, bone morphogenic proteins, growth factors, stem cells, plasma-rich protein, and ceramic grafts. Their use in sports medicine has exploded in efforts to increase graft incorporation, stimulate healing, and get athletes back to sport with problems including anterior cruciate ligament ruptures, tendon ruptures, cartilage injuries, and fractures...
July 2017: Orthopedic Clinics of North America
https://www.readbyqxmd.com/read/28571016/next-generation-omics-approaches-in-the-fight-against-blood-doping
#7
Guan Wang, Antonia Karanikolou, Ioanna Verdouka, Theodore Friedmann, Yannis Pitsiladis
Despite being prohibited by the World Anti-Doping Agency (WADA), blood manipulations such as the use of recombinant human erythropoietin and blood transfusions are a well-known method used by athletes to enhance performance. Direct detection of illicit blood manipulation has been partially successful due to the short detection window of the substances/methods, sample collection timing, and the use of sophisticated masking strategies. In response, WADA introduced the athlete biological passport (ABP) in 2009, which is an individualised longitudinal monitoring approach that tests primarily haematologic biomarkers of doping in order to identify atypical variability in response(s) in athletes, highlighting a potential doping violation...
2017: Medicine and Sport Science
https://www.readbyqxmd.com/read/28552947/relationship-of-mechanical-impact-magnitude-to-neurologic-dysfunction-severity-in-a-rat-traumatic-brain-injury-model
#8
Tsung-Hsun Hsieh, Jing-Wei Kang, Jing-Huei Lai, Ying-Zu Huang, Alexander Rotenberg, Kai-Yun Chen, Jia-Yi Wang, Shu-Yen Chan, Shih-Ching Chen, Yung-Hsiao Chiang, Chih-Wei Peng
OBJECTIVE: Traumatic brain injury (TBI) is a major brain injury type commonly caused by traffic accidents, falls, violence, or sports injuries. To obtain mechanistic insights about TBI, experimental animal models such as weight-drop-induced TBI in rats have been developed to mimic closed-head injury in humans. However, the relationship between the mechanical impact level and neurological severity following weight-drop-induced TBI remains uncertain. In this study, we comprehensively investigated the relationship between physical impact and graded severity at various weight-drop heights...
2017: PloS One
https://www.readbyqxmd.com/read/28544811/differential-protein-expression-in-exosomal-samples-taken-from-trauma-patients
#9
Ron B Moyron, Amber Gonda, Matthew J Selleck, Xian Luo-Owen, Richard D Catalano, Thomas O'Callahan, Carlos Garberoglio, David Turay, Nathan R Wall
Traumatic Brain Injuries (TBI) are among the most misdiagnosed and underreported types of head trauma. The potential long-term impact of undiagnosed or incorrectly identified concussions and other head injuries are potentially devastating, as evidenced by the increasing societal burden exhibited by soldiers returning from combat and athletes in contact sports. Concussions and TBI are notoriously difficult to correctly diagnose and prognosis for these injuries is poorly understood. In order to increase the likelihood of successful diagnosis, treatment, and prediction of outcomes, a definitive differential diagnosis will need to be established...
May 25, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28539376/longitudinal-associations-of-away-from-home-eating-snacking-screen-time-and-physical-activity-behaviors-with-cardiometabolic-risk-factors-among-chinese-children-and-their-parents
#10
Fei Dong, Annie Green Howard, Amy H Herring, Amanda L Thompson, Linda S Adair, Barry M Popkin, Allison E Aiello, Bing Zhang, Penny Gordon-Larsen
Background: Little is known about intergenerational differences in associations of urbanization-related lifestyle behaviors with cardiometabolic risk factors in children and their parents in rapidly urbanizing China.Objective: We tested the intergenerational differences in longitudinal associations of away-from-home eating, snacking, screen time, and leisure-time sports with high waist-to-height ratio (WHtR), elevated blood pressure (BP), elevated glycated hemoglobin (HbA1c), and elevated C-reactive protein (CRP) among Chinese children and their parents...
May 24, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28515982/current-concepts-on-the-genetic-factors-in-rotator-cuff-pathology-and-future-implications-for-sports-physical-therapists
#11
Travis Orth, Jessica Paré, John E Froehlich
CONTEXT: Recent advances within the field of genetics are currently changing many of the methodologies in which medicine is practiced. These advances are also beginning to influence the manner in which physical therapy services are rendered. Rotator cuff pathology is one of the most common diagnoses treated by the sports physical therapist. The purpose of this commentary is to educate sports physical therapists on the recent advances regarding how genetics influences rotator cuff pathology, including rotator cuff tears, and provide a perspective on how this information will likely influence post-operative shoulder rehabilitation in the near future...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28515836/college-students-knowledge-of-recovery-beverage-serving-sizes
#12
Stephanie Lewis, Victoria Baxter, Kim Spaccarotella, Walter Andzel
Previous research suggests that chocolate milk may be a beneficial recovery beverage, yet little is known about how athletes and students training for careers in sports science or health-related fields interpret recommended recovery beverage serving sizes. This study examined college students' ability to correctly apply serving size recommendations for chocolate milk and protein powder used during post-exercise recovery and assessed usual consumption of milk as a recovery beverage. College students (34 women, 39 men) poured the amount of chocolate milk they would consume within 90 minutes after exercise unaided and with the use of a serving size guide...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28514233/energy-balance-over-one-athletic-season
#13
Analiza M Silva, Catarina N Matias, Diana A Santos, Diana Thomas, Anja Bosy-Westphal, Manfred J Müller, Steven B Heymsfield, Luís B Sardinha
INTRODUCTION: Magnitude and variation in energy balance (EB) components over an athletic season are largely unknown. PURPOSE: We investigated the longitudinal changes in EB over one season and explored the association between EB variation and the change in the main fat-free mass (FFM) components in highly trained athletes. METHODS: Eighty athletes (54 males; handball, volleyball, basketball, triathlete, and swimming) were evaluated from the beginning of the season to the main competition stage...
March 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28501806/exercise-in-type-2-diabetes-genetic-metabolic-and-neuromuscular-adaptations-a-review-of-the-evidence
#14
REVIEW
Silvano Zanuso, Massimo Sacchetti, Carl Johan Sundberg, Giorgio Orlando, Paolo Benvenuti, Stefano Balducci
The biological responses to exercise training are complex, as almost all organs and systems are involved in interactions that result in a plethora of adaptations at the genetic, metabolic and neuromuscular levels.To provide the general practitioner and the sports medicine professionals with a basic understanding of the genetic, metabolic and neuromuscular adaptations at a cellular level that occur with aerobic and resistance exercise in subjects with type 2 diabetes.For each of the three domains (genetic, metabolic and neuromuscular), the results of the major systematic reviews and original research published in relevant journals, indexed in PubMed, were selected...
May 13, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28487812/high-sensitive-c-reactive-protein-levels-in-a-group-of-syrian-university-male-students-and-its-associations-with-smoking-physical-activity-anthropometric-measurements-and-some-hematologic-inflammation-biomarkers
#15
Wafika Zarzour, Nada Dehneh, Mazen Rajab
In Syria, health risk data on young males are limited. Hence, the aim of the present study was to evaluate cardiovascular disease (CVD) risk factors along with C-reactive protein levels measured by high-sensitive method (hsCRP) in a group of healthy males of university students (n = 101, 18-25 years old). Participants' anthropometric characteristics; alcohol drinking, smoking, and physical activity habits; parents medical history; and some inflammatory biomarkers were inspected for their associations with hsCRP...
2017: International Journal of Inflammation
https://www.readbyqxmd.com/read/28480692/effects-of-lymphatic-drainage-and-cryotherapy-on-indirect-markers-of-muscle-damage
#16
Michael Behringer, Diana Jedlicka, Joachim Mester
BACKGROUND: Muscle enzymes are cleared from the extracellular space by the lymphatic system, while smaller proteins enter the bloodstream directly. We investigated if manual lymphatic drainage (MLD), local cryotherapy (CRY), and rest (RST) differently affect the time course of creatine kinase (CK, 84 kDa) and heart-type fatty acid binding protein (h-FABP, 15 kDa) in the blood. DESIGN: Randomized controlled trial. METHODS: After 4x20 unilateral, eccentric accentuated knee extensions (with one-third of the maximal isometric force) 30 sports students randomly received either a 30 min MLD, CRY or they rested (RST) for the same amount of time...
May 5, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28471203/-ascites-may-provide-useful-information-for-diagnosis-of-ovarian-cancer
#17
E Stuchlíková, M Zahradníková, R Nenutil, D Valík, B Vojtěšek, M Novotný, L Hernychova
BACKGROUND: Ovarian cancer is the most lethal gynecological cancer, almost 80% of all patients succumb the disease within 5 years of diagnosis. High mortality is caused especially by nonspecific symptoms, diagnosis in late stages and the absence of a specific biomarker. Currently, the most common diagnostic biomarkers are the membrane glycoprotein Cancer Antigen 125 (CA 125), the Human Epididymal Protein 4 (HE4) and the Carcinoembryonic Antigen (CAE). None of these biomarkers is specific only for ovarian cancer and increased levels may be caused by other diseases...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28455366/effect-of-cardiorespiratory-and-strength-exercises-on-disease-activity-in-patients-with-inflammatory-rheumatic-diseases-a-systematic-review-and-meta-analysis
#18
REVIEW
Silje Halvorsen Sveaas, Geir Smedslund, Kåre Birger Hagen, Hanne Dagfinrud
OBJECTIVE: To investigate the effects of cardiorespiratory and strength exercises on disease activity for patients with inflammatory rheumatic diseases (IRDs). DESIGN: A systematic review with meta-analysis registered at PROSPERO (CRD42015020004). PARTICIPANTS: Patients with IRDs. DATA SOURCES: The databases MEDLINE, AMED, Embase and CINAHL were searched from inception up to April 2016. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Trials were included if they were randomised controlled trials of adults with IRDs, comparing the effect of cardiorespiratory and strength exercises with usual care on disease activity and followed the American College of Sports Medicine's exercise recommendations...
April 28, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28432552/subchronic-nandrolone-administration-reduces-cardiac-oxidative-markers-during-restraint-stress-by-modulating-protein-expression-patterns
#19
Barbara Pergolizzi, Vitina Carriero, Giuliana Abbadessa, Claudia Penna, Paola Berchialla, Silvia De Francia, Enrico Bracco, Silvia Racca
Nandrolone decanoate (ND), an anabolic-androgenic steroid prohibited in collegiate and professional sports, is associated with detrimental cardiovascular effects through redox-dependent mechanisms. We previously observed that high-dose short-term ND administration (15 mg/kg for 2 weeks) did not induce left heart ventricular hypertrophy and, paradoxically, improved postischemic response, whereas chronic ND treatment (5 mg/kg twice a week for 10 weeks) significantly reduced the cardioprotective effect of postconditioning, with an increase in infarct size and a decrease in cardiac performance...
April 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28430140/-eat-as-if-you-could-save-the-planet-and-win-sustainability-integration-into-nutrition-for-exercise-and-sport
#20
Nanna Meyer, Alba Reguant-Closa
Today's industrial food production contributes significantly to environmental degradation. Meat production accounts for the largest impact, including greenhouse gas emissions, land and water use. While food production and consumption are important aspects when addressing climate change, this article focuses predominantly on dietary change that promotes both health for planet and people with focus on athletes. Healthy, sustainable eating recommendations begin to appear in various governmental guidelines. However, there remains resistance to the suggested reductions in meat consumption...
April 21, 2017: Nutrients
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