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Ergogenic aid

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https://www.readbyqxmd.com/read/27858306/menthol-a-fresh-ergogenic-aid-for-athletic-performance
#1
Christopher J Stevens, Russ Best
The application of menthol has recently been researched as a performance-enhancing aid for various aspects of athletic performance including endurance, speed, strength and joint range of motion. A range of application methods has been used including a mouth rinse, ingestion of a beverage containing menthol or external application to the skin or clothing via a gel or spray. The majority of research has focussed on the use of menthol to impart a cooling sensation on athletes performing endurance exercise in the heat...
November 17, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27757591/acute-effects-of-caffeine-containing-energy-drinks-on-physical-performance-a-systematic-review-and-meta-analysis
#2
Diego B Souza, Juan Del Coso, Juliano Casonatto, Marcos D Polito
PURPOSE: Caffeine-containing energy drinks (EDs) are currently used as ergogenic aids to improve physical performance in a wide variety of sport disciplines. However, the outcomes of previous investigations on this topic are inconclusive due to methodological differences, especially, in the dosage of the active ingredients and the test used to assess performance. METHODS: We performed a systematic review and meta-analysis of published studies to evaluate the effects of acute ED intake on physical performance...
October 18, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27757381/echinacea-supplementation-does-it-really-improve-aerobic-fitness
#3
Cory W Baumann, Dongmin Kwak
PURPOSE: Echinacea is an herbal supplement used by endurance athletes for its performance boosting properties. It is thought that Echinacea improves the blood's oxygen carrying capacity by increasing production of erythropoietin (EPO), a glycoprotein that regulates red blood cell formation. Subsequently, these changes would lead to an overall improvement in maximal oxygen uptake (VO2max) and running economy (RE), two markers of aerobic fitness. The purpose of this review is to briefly discuss the physiological variables associated with distance running performance and how these variables are influenced by Echinacea supplementation...
September 2016: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/27691998/characterisation-of-equine-satellite-cell-transcriptomic-profile-response-to-%C3%AE-hydroxy-%C3%AE-methylbutyrate-hmb
#4
Katarzyna A Szcześniak, Anna Ciecierska, Piotr Ostaszewski, Tomasz Sadkowski
β-Hydroxy-β-methylbutyrate (HMB) is a popular ergogenic aid used by human athletes and as a supplement to sport horses, because of its ability to aid muscle recovery, improve performance and body composition. Recent findings suggest that HMB may stimulate satellite cells and affect expressions of genes regulating skeletal muscle cell growth. Despite the scientific data showing benefits of HMB supplementation in horses, no previous study has explained the mechanism of action of HMB in this species. The aim of this study was to reveal the molecular background of HMB action on equine skeletal muscle by investigating the transcriptomic profile changes induced by HMB in equine satellite cells in vitro...
October 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27678471/thirty-years-of-investigation-on-the-ergogenic-effects-of-sodium-citrate-is-it-time-for-a-fresh-start
#5
Vitor de Salles Painelli, Antonio Herbert Lancha Junior
Sodium citrate (SCit) supplementation has been studied for several years as a strategy to reduce the muscle fatigue induced by H(+) ion accumulation within the skeletal muscle during high-intensity, short-duration exercise. Several investigations have been published on this matter, and appear to indicate that SCit is not effective as an ergogenic aid, despite its ability to increase extracellular buffering capacity. In this short report, we briefly discuss the SCit results previously published in the literature and consider them in light of new and promising findings, which appear to address issues associated with previous study designs...
September 27, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27669443/spinal-cord-injury-level-influences-acute-plasma-caffeine-responses
#6
Terri Susan Graham-Paulson, Thomas Andrew William Paulson, Claudio Perret, Keith Tolfrey, Philip Cordery, Victoria Louise Goosey-Tolfrey
PURPOSE: To investigate the absorption curve and acute effects of caffeine at rest in individuals with no spinal cord injury (SCI), paraplegia (PARA) and tetraplegia (TETRA). METHODS: Twenty-four healthy males (8 able-bodied (AB), 8 PARA and 8 TETRA) consumed 3 mg[BULLET OPERATOR]kg caffeine anhydrous (CAF) in a fasted state. Plasma caffeine [CAF], glucose, lactate, free-fatty acid [FFA] and catecholamine concentrations were measured during a 150 min rest period...
September 23, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27623757/acute-supplementation-of-l-arginine-neither-affects-strength-performance-nor-nitric-oxide-production
#7
Claudia M Meirelles, Cristiane Matsuura
BACKGROUND: L-arginine is a semi-essential amino acid involved in nitric oxide production. As nitric oxide is an important vasodilator, L-arginine supplementation would increase blood perfusion and, subsequently, muscle performance during exercises. The aim of this study was to determine the acute effect of L-arginine supplementation on strength performance and nitric oxide levels in healthy trained individuals. METHODS: In a doubleblind, placebo-controlled, cross-over study, 12 men were randomly assigned to L-arginine or placebo supplementation...
September 13, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27623161/increased-thermoregulatory-strain-when-wearing-an-upper-body-compression-garment-during-moderate-exercise-in-trained-older-adults
#8
Iker Leoz-Abaurrea, Mikel Izquierdo, Miriam Gonzalez-Izal, Roberto Aguado-Jiménez
The efficacy of the use of an upper body compression garment (UBCG) as an ergogenic aid to reduce thermoregulatory strain in older adults remains unknown. The aim of this study was to evaluate the effects of UBCG on thermoregulatory, cardiorespiratory and perceptual responses during cycling in a temperate environment (~25ºC, 66% rh) in trained older adults. Twelve cyclists aged 66±2 years performed an intermittent 1-h cycling trial at 50% of the peak power output followed by 10 min of passive recovery. Participants were provided with either commercially available UBCG or control garment in a randomized order...
September 6, 2016: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/27584317/placebo-and-nocebo-effects-of-a-purported-ergogenic-aid-on-repeat-sprint-performance-1278-board-8-june-2-8-00-am-10-00-am
#9
Chris J Beedie, Philip Hurst, Damian Coleman, Abby Foad
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27546324/prevalence-of-the-use-of-effective-ergogenic-aids-among-professional-athletes
#10
Barbara Frączek, Maja Warzecha, Florentyna Tyrała, Aleksandra Pięta
BACKGROUND: Athletic performance can be substantially enhanced with supplements and functional food which are considered by scientists as efficient, safe and legal, such as protein, carbohydrate and protein-carbohydrate supplements, isotonic sports drinks, carbohydrate-protein bars, carbohydrate bars, creatine and caffeine. OBJECTIVE: The study is aimed at an analysis and evaluation of the prevalence of using effective ergogenic aids (creatine, caffeine, isotonic drinks, carbohydrates, and proteins) in a group of Polish professional athletes...
2016: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/27465721/nutrition-supplements-to-stimulate-lipolysis-a-review-in-relation-to-endurance-exercise-capacity
#11
Jisu Kim, Jonghoon Park, Kiwon Lim
Athletes make great efforts to increase their endurance capacity in many ways. Using nutrition supplements for stimulating lipolysis is one such strategy to improve endurance performance. These supplements contain certain ingredients that affect fat metabolism; furthermore, in combination with endurance training, they tend to have additive effects. A large body of scientific evidence shows that nutrition supplements increase fat metabolism; however, the usefulness of lipolytic supplements as ergogenic functional foods remains controversial...
2016: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/27414159/sildenafil-does-not-improve-exercise-capacity-under-acute-hypoxia-exposure
#12
A H Toro-Salinas, N Fort, J R Torrella, T Pagès, C Javierre, G Viscor
The increase in pulmonary arterial pressure (PAP) due to hypoxic pulmonary vasoconstriction (HPV) could be a limiting factor for physical performance during hypoxic exposure. Sildenafil has been shown to reduce PAP in situations of moderate or severe hypoxia, and consequently its role as an ergogenic aid and even a possible doping substance must be considered. We performed a double-blind crossover study to determine the effects of sildenafil on cardiovascular, respiratory and metabolic parameters in normoxia and during acute exposure to hypobaric hypoxia (4 000 m) at rest and during maximal and submaximal (60% VO2 max) exercise tests...
September 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27408608/a-systematic-review-and-meta-analysis-of-carbohydrate-benefits-associated-with-randomized-controlled-competition-based-performance-trials
#13
Martin Pöchmüller, Lukas Schwingshackl, Paolo C Colombani, Georg Hoffmann
BACKGROUND: Carbohydrate supplements are widely used by athletes as an ergogenic aid before and during sports events. The present systematic review and meta-analysis aimed at synthesizing all available data from randomized controlled trials performed under real-life conditions. METHODS: MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials were searched systematically up to February 2015. Study groups were categorized according to test mode and type of performance measurement...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27399820/recent-developments-in-the-use-of-sodium-bicarbonate-as-an-ergogenic-aid
#14
Lars R McNaughton, Lewis Gough, Sanjoy Deb, David Bentley, S Andy Sparks
This review examines the current status of sodium bicarbonate as an ergogenic aid. It builds on previous reviews in the area. Current research would suggest that as an ergogenic aid, a 300 mg·kg dose of NaHCO3 can improve high-intensity exercise, within a range of exercise modalities, such as a single bout of supramaximal exercise, high-intensity intermittent activity, and skill-based sports. In particular, these benefits seem to be present to a greater extent within trained individuals. Despite this, there appears to exist a high intraindividual variability in response to NaHCO3, and therefore, the ergogenic benefits may not be induced during every exercise bout...
July 2016: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/27377257/effects-of-beta-alanine-supplementation-on-performance-and-muscle-fatigue-in-athletes-and-non-athletes-of-different-sports-a-systematic-review
#15
Priscila Berti Zanella, Fernanda Donner Alves, Carolina Guerini DE Souza
BACKGROUND: Beta-alanine (BA) is a non-essential amino acid that can be synthesized in the liver and obtained from diet, particularly from white and red meat. Increased availability of BA via dietary supplement, may improve performance of athletes. The aim of this study was to conduct a review of the use of BA supplementation as an ergogenic aid to improve performance and fatigue resistance in athletes and non-athletes. METHODS: In this systematic review, a search in PubMed and Bireme databases was performed for the terms "beta-alanine", "beta-alanine and exercise", "carnosine" or "carnosine and exercise" in the titles or abstracts...
July 5, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27359522/apple-versus-caffeinated-beverages-as-ergogenic-aids-during-physical-and-cognitive-performance-a-pilot-study-267-board-104-june-1-11-00-am-12-30-pm
#16
Emily K W Flanagan, Laura Q Jimenez, Craig P Flanagan, Brian Arwari, Wesley N Smith
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27348226/ergogenic-aids-and-supplements
#17
Marisa Porrini, Cristian Del Boʼ
Great interest is currently shown for the contribution of nutrition to optimize training and athletic performance, and a considerable debate exists about the potential ergogenic value of several dietary supplements. However, most of the products used by athletes do not provide sufficient scientific evidence regarding their efficacy in enhancing physical performance as well as their specificity of action and safety. For this reason, sport nutrition professionals need skills in evaluating the scientific value of papers and advertisements on ergogenic aids and supplements in order to support athletes in their choice...
2016: Frontiers of Hormone Research
https://www.readbyqxmd.com/read/27305924/photobiomodulation-delays-the-onset-of-skeletal-muscle-fatigue-in-a-dose-dependent-manner
#18
Kelly A Larkin-Kaiser, Paul A Borsa, Harsimran S Baweja, Molly A Moore, Mark D Tillman, Steven Z George, Evangelos A Christou
Photobiomodulation (PBM) therapy has been implicated as an effective ergogenic aid to delay the onset of muscle fatigue. The purpose of this study was to examine the dose-response ergogenic properties of PBM therapy and its ability to prolong time to task failure by enhancing muscle activity and delaying the onset of muscle fatigue using a static positioning task. Nine participants (24.3 ± 4.9 years) received three doses of near-infrared (NIR) light therapy randomly on three separate sessions (sham, 240, and 480 J)...
September 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27293386/twelve-weeks-supplementation-with-an-extended-release-caffeine-and-atp-enhancing-supplement-may-improve-body-composition-without-affecting-hematology-in-resistance-trained-men
#19
Jordan M Joy, Roxanne M Vogel, Jordan R Moon, Paul H Falcone, Matt M Mosman, Michael P Kim
BACKGROUND: Increased ATP levels may enhance training-induced muscle accretion and fat loss, and caffeine is a known ergogenic aid. A novel supplement containing ancient peat and apple extracts has reported enhanced mitochondrial ATP production and it has been coupled with an extended-release caffeine. Therefore, the purpose of this investigation was to determine the effects of this supplement on body composition when used in conjunction with 12 weeks of resistance training. METHODS: Twenty-one resistance-trained subjects (27...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27071990/co-ingestion-of-nutritional-ergogenic-aids-and-high-intensity-exercise-performance
#20
REVIEW
Alireza Naderi, Conrad P Earnest, Ryan P Lowery, Jacob M Wilson, Mark E T Willems
Many sports involve repeated bouts of high-intensity exercise. High-intensity exercise is compromised, however, by the early onset of exercise-induced fatigue. Metabolic by-products, ion dysbalance and amount of phosphocreatine are considered the main peripheral causes of fatigue during high-intensity exercise. Intake of nutritional ergogenic aids is commonplace to enhance performance of high-intensity exercise by offsetting the potential mechanisms of fatigue. Creatine, probably one of the best known nutritional aids to enhance performance of high-intensity exercise, has convincingly substantiated its ergogenic potential...
October 2016: Sports Medicine
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