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https://www.readbyqxmd.com/read/29673243/the-effect-of-additional-carbohydrate-supplements-for-7-days-after-prolonged-interval-exercise-on-exercise-performance-and-energy-metabolism-during-submaximal-exercise-in-team-sports-athletes
#1
Hun-Young Park, Jisu Kim, Miyoung Park, Nana Chung, Kiwon Lim
PURPOSE: The purpose of our study was to determine the effectiveness of carbohydrate loading by additional carbohydrate supplements for 7 days after prolonged interval exercise on exercise performance and energy metabolism during submaximal exercise in team-sports athletes. METHODS: Twenty male team-sports athletes (14 soccer and 6 rugby players) volunteered to participate in the study and were equally divided into the experimental group (EXP, n=10) performing additional carbohydrate supplementation for 7 days after prolonged interval exercise until blood glucose level reaches 50 mg/dL or less and the control group (CON, n=10)...
March 30, 2018: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29672225/probiotic-supplementation-in-trained-trotter-horses-effect-on-blood-clinical-pathology-data-and-urine-metabolomic-assessed-in-field
#2
Luca Laghi, Chenglin Zhu, Giuseppe Campagna, Giacomo Rossi, Marilena Bazzano, Fulvio Laus
The attention of sports community towards probiotic supplementation as a way to promote exercise and training performance, together with good health, has increased in recent years. This has applied also to horses, with promising results. Here, for the first time, we tested a probiotic mix of several strains of alive bacteria typically employed for humans to improve the training performance of Standardbred horses in athletic activity. To evaluate its effects on the horse performance, we measured lactate concentration in blood, a translational outcome largely employed for the purpose, combined with the study of hematological and biochemical parameters, together with urine from a metabolomics perspective...
April 19, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29656073/protective-therapeutic-effects-of-peptide-nanofiber-and-hyaluronic-acid-hybrid-membrane-in-in-vivo-osteoarthritis-model
#3
Elif Arslan, Melis Sardan Ekiz, Cagla Eren Cimenci, Nuray Can, M Hanifi Gemci, Huseyin Ozkan, Mustafa O Guler, Ayse B Tekinay
Osteoarthritis (OA) is a condition where tissue function is lost through a combination of secondary inflammation and deterioration in articular cartilage. One of the most common causes of OA is age-related tissue impairment because of wear and tear due to mechanical erosion. Hyaluronic acid-based viscoelastic supplements have been widely used for the treatment of knee injuries. However, the current formulations of hyaluronic acid are unable to provide efficient healing and recovery. Here, a nanofiber-hyaluronic acid membrane system that was prepared by using a quarter of the concentration of commercially available hyaluronic acid supplement, Hyalgan® , was used for the treatment of an osteoarthritis model, and Synvisc® , which is another commercially available hyaluronic acid containing viscoelastic supplement, was used as a control...
April 12, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29643758/prevalence-of-supplement-use-in-recreationally-active-kazakhstan-university-students
#4
Denis Vinnikov, Zhanna Romanova, Anar Dushpanova, Karashash Absatarova, Zhazira Utepbergenova
Background: Little is known about the supplements use and recreational sport practices in Kazakhstan university students. Therefore, the aim of this study was to ascertain supplements use prevalence and their predictors in this population. Methods: Cross-sectional survey of both undergraduate and graduate level students was completed in 2017 et al.-Farabi Kazakh National University, the largest higher institution in the country, from almost all Schools. A 45-item questionnaire was used to record physical activity, supplements use, lifestyle attributes (smoking, alcohol, sleep, etc...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29589768/ioc-consensus-statement-dietary-supplements-and-the-high-performance-athlete
#5
Ronald J Maughan, Louise M Burke, Jiri Dvorak, D Enette Larson-Meyer, Peter Peeling, Stuart M Phillips, Eric S Rawson, Neil P Walsh, Ina Garthe, Hans Geyer, Romain Meeusen, Luc van Loon, Susan M Shirreffs, Lawrence L Spriet, Mark Stuart, Alan Vernec, Kevin Currell, Vidya M Ali, Richard G M Budgett, Arne Ljungqvist, Margo Mountjoy, Yannis Pitsiladis, Torbjørn Soligard, Uğur Erdener, Lars Engebretsen
Nutrition usually makes a small but potentially valuable contribution to successful performance in elite athletes, and dietary supplements can make a minor contribution to this nutrition program. Nonetheless, supplement use is widespread at all levels of sport. Products described as supplements target different issues, including the management of micronutrient deficiencies, supply of convenient forms of energy and macronutrients, and provision of direct benefits to performance or indirect benefits such as supporting intense training regimens...
March 28, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29580114/athletes-and-supplements-prevalence-and-perspectives
#6
Ina Garthe, Ronald J Maughan
In elite sport, where opponents are evenly matched, small factors can determine the outcome of sporting contests. Not all athletes know the value of making wise nutrition choices, but anything that might give a competitive edge, including dietary supplements, can seem attractive. Between 40% and 100% of athletes typically use supplements, depending on the type of sport, level of competition, and the definition of supplements. However, unless the athlete has a nutrient deficiency, supplementation may not improve performance and may have a detrimental effect on both performance and health...
March 26, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29568244/herbal-medicine-for-sports-a-review
#7
REVIEW
Maha Sellami, Olfa Slimeni, Andrzej Pokrywka, Goran Kuvačić, Lawrence D Hayes, Mirjana Milic, Johnny Padulo
The use of herbal medicinal products and supplements has increased during last decades. At present, some herbs are used to enhance muscle strength and body mass. Emergent evidence suggests that the health benefits from plants are attributed to their bioactive compounds such as Polyphenols, Terpenoids, and Alkaloids which have several physiological effects on the human body. At times, manufacturers launch numerous products with banned ingredient inside with inappropriate amounts or fake supplement inducing harmful side effect...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29565185/making-decisions-about-supplement-use
#8
Ronald J Maughan, Susan M Shirreffs, Alan Vernec
The use of dietary supplements is widespread among athletes in all sports and at all levels of competition, as it is in the general population. For the athlete training at the limits of what is sustainable, or for those seeking a shortcut to achieving their aims, supplements offer the prospect of bridging the gap between success and failure. Surveys show, however, that this is often not an informed choice and that the knowledge level among consumers is often low and that they are often influenced in their decisions by individuals with an equally inadequate understanding of the issues at stake...
March 22, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29561306/effects-of-vitamin-d-on-skeletal-muscle-and-athletic-performance
#9
Geoffrey D Abrams, David Feldman, Marc R Safran
Vitamin D is known to be important for calcium homeostasis and bone metabolism. It also has important direct effects on skeletal muscle. Unlike authentic vitamins, which cannot be synthesized in the body, vitamin D is produced in the skin using sunlight. Through its nuclear receptor (ie, vitamin D receptor) located throughout the body, including skeletal muscle, vitamin D initiates genomic and nongenomic pathways regulating multiple actions, including myocyte proliferation and growth. In some studies, vitamin D supplementation has been shown to increase muscle strength, particularly in people who are vitamin D deficient...
March 20, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29555069/effects-of-%C3%AE-alanine-supplementation-on-carnosine-elevation-and-physiological-performance
#10
Jay R Hoffman, Alyssa Varanoske, Jeffrey R Stout
β-Alanine is one of the more popular sport supplements used by strength/power athletes today. The popularity of β-alanine stems from its ability to enhance intracellular muscle-buffering capacity thereby delaying fatigue during high-intensity exercise by increasing muscle carnosine content. Recent evidence also suggests that elevated carnosine levels may enhance cognitive performance and increase resiliency to stress. These benefits are thought to result from carnosine's potential role as an antioxidant. This review will discuss these new findings including recent investigations examining β-alanine supplementation and increased resiliency to posttraumatic stress and mild traumatic brain injury...
2018: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/29548770/comparison-of-sports-drink-versus-oral-rehydration-solution-during-exercise-in-the-heat
#11
Michael W Schleh, Charles L Dumke
INTRODUCTION: This study compared 2 commercially available beverages, an oral rehydration solution (ORS; 60.9 mM Na+ ; 3.4% carbohydrate) and a sports drink (SDS; 18.4 mM Na+; 5.9% carbohydrate), on hydration and metabolism during submaximal exercise in the heat. METHODS: Ten male subjects completed two 90-min exercise trials (39ºC, 30%) of walking at 50% VO2max followed by a 30-min rest period in the heat while wearing wildland firefighter personal protective clothing...
March 13, 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29548567/metabolic-study-of-methylstenbolone-in-horses-using-liquid-chromatography-high-resolution-mass-spectrometry-and-gas-chromatography-mass-spectrometry
#12
Timmy L S Choi, Jenny K Y Wong, Wai Him Kwok, Peter Curl, Stewart Mechie, Terence S M Wan
Methylstenbolone (2,17α-dimethyl-5α-androst-1-en-17β-ol-3-one) is a synthetic anabolic and androgenic steroid (AAS) sold as an oral 'nutritional supplement' under the brand names 'Ultradrol', 'M-Sten' and 'Methyl-Sten'. Like other AASs, methylstenbolone is a prohibited substance in both human and equine sports. This paper describes the studies of the in vitro and in vivo metabolism of methylstenbolone in horses using LC/HRMS, GC/MS and GC/MS/MS. Phase I in vitro metabolic study of methylstenbolone was performed using homogenised horse liver...
February 21, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29544062/ingestion-of-carbohydrate-or-carbohydrate-plus-protein-does-not-enhance-performance-during-endurance-exercise-a-randomized-cross-over-placebo-controlled-clinical-trial
#13
Débora Finger, Fábio Juner Lanferdini, Juliano Boufleur Farinha, Clarissa Müller Brusco, Lucas Helal, Francesco Pinto Boeno, Eduardo Lusa Cadore, Ronei Silveira Pinto
INTRODUCTION: Protein (PRO) combined with a carbohydrate (CHO) beverage may have an ergogenic effect on endurance performance. However, evidence regarding its efficacy on similar conditions to athletes' race day is still lacking. OBJECTIVE: To compare the effect of three different nutritional supplementation strategies on performance and muscle recovery in a duathlon protocol. METHODS: , 13 male athletes (29.7 ± 7.7 years) participated in three simulated Olympic-distance duathlons under three different, randomly assigned, supplementation regimens: carbohydrate drink (CHO, 75 g); isocaloric CHO plus protein drink (CHO+PRO, 60...
March 15, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29540367/ioc-consensus-statement-dietary-supplements-and-the-high-performance-athlete
#14
Ronald J Maughan, Louise M Burke, Jiri Dvorak, D Enette Larson-Meyer, Peter Peeling, Stuart M Phillips, Eric S Rawson, Neil P Walsh, Ina Garthe, Hans Geyer, Romain Meeusen, Lucas J C van Loon, Susan M Shirreffs, Lawrence L Spriet, Mark Stuart, Alan Vernec, Kevin Currell, Vidya M Ali, Richard Gm Budgett, Arne Ljungqvist, Margo Mountjoy, Yannis P Pitsiladis, Torbjørn Soligard, Uğur Erdener, Lars Engebretsen
Nutrition usually makes a small but potentially valuable contribution to successful performance in elite athletes, and dietary supplements can make a minor contribution to this nutrition programme. Nonetheless, supplement use is widespread at all levels of sport. Products described as supplements target different issues, including (1) the management of micronutrient deficiencies, (2) supply of convenient forms of energy and macronutrients, and (3) provision of direct benefits to performance or (4) indirect benefits such as supporting intense training regimens...
April 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29529346/mitigating-sports-injury-risks-using-internet-of-things-and-analytics-approaches
#15
Gary B Wilkerson, Ashish Gupta, Marisa A Colston
Sport injuries restrict participation, impose a substantial economic burden, and can have persisting adverse effects on health-related quality of life. The effective use of Internet of Things (IoT), when combined with analytics approaches, can improve player safety through identification of injury risk factors that can be addressed by targeted risk reduction training activities. Use of IoT devices can facilitate highly efficient quantification of relevant functional capabilities prior to sport participation, which could substantially advance the prevailing sport injury management paradigm...
March 12, 2018: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/29521707/nutritional-supplements-for-the-treatment-and-prevention-of-sports-related-concussion-omega-3-fatty-acids-evidence-still-lacking
#16
Jonathan M Oliver, Anthony J Anzalone, Margaret T Jones, K Michele Kirk, David A Gable, Yanqin Gao, William S Harris, Henrik Zetterberg
No abstract text is available yet for this article.
March 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29512224/physiology-of-static-breath-holding-in-elite-apneists
#17
Anthony R Bain, Ivan Drvis, Zeljko Dujic, David B MacLeod, Philip N Ainslie
NEW FINDINGS: What is the topic of this review? This review provides an up-to-date assessment of the physiology involved with extreme static dry-land breath holding in trained apneists. What advances does it highlight? We specifically highlight the recent findings involved with the cardiovascular, cerebrovascular, and metabolic function during a maximal breath hold in elite apneists. ABSTRACT: Breath hold related activities have been performed for centuries, but only recently within the last ∼30 years has it emerged as an increasingly popular competitive sport...
March 7, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29511660/sprint-interval-training-on-the-vertical-treadmill-improves-aerobic-and-anaerobic-running-performance
#18
Alastair Ross Jordan, David Claxton, Alison Purvis, Andrew Barnes, Mary Fysh
The vertical treadmill (VertiRun) is an unresearched mode of exercise where users engage in a "running-like" action whilst body weight is supported by a recumbent bench and overhanging resistance cables are tethered to the user's ankles. The purpose of this study was to determine the effects of training on a VertiRun and any cross-training effect on running performance. Thirty active males (age, 22±4 years; stature, 1.79±0.08 m; body mass, 78.5±12.6 kg) volunteered for this study. Participants' aerobic and anaerobic running performance were determined by incremental maximum rate of oxygen consumption (VO2max) treadmill test and a maximum anaerobic running test (MART), respectively...
February 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29508140/prolonged-versus-short-infusion-rates-for-intravenous-magnesium-sulfate-administration-in-hematopoietic-cell-transplant-patients
#19
Pam M Ku, Jennifer L Waller, Claude Sportès, Amber B Clemmons
PURPOSE: Hematopoietic cell transplant (HCT) recipients often require intravenous (IV) magnesium repletion due to poor dietary intake, gastrointestinal loss, and use of concomitant magnesium wasting medications. Prolonging the IV magnesium infusion rate has been postulated to reduce renal clearance and improve retention; however, limited evidence supports this hypothesis. METHODS: We reviewed autologous and allogeneic HCT recipients (n = 82) who received IV magnesium at our institution between 2014 and 2016: 41 patients received IV magnesium at a prolonged rate of 0...
March 5, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29507454/adverse-effects-of-sports-supplements-in-men
#20
REVIEW
Sarah J Martin, Miranda Sherley, Malcolm McLeod
No abstract text is available yet for this article.
February 2018: Australian Prescriber
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