IOC consensus statement: dietary supplements and the high-performance athlete

British Journal of Sports Medicine, Год журнала: 2018, Номер 52(7), С. 439 - 455

Опубликована: Март 14, 2018

Nutrition usually makes a small but potentially valuable contribution to successful performance in elite athletes, and dietary supplements can make minor this nutrition programme. Nonetheless, supplement use is widespread at all levels of sport. Products described as target different issues, including (1) the management micronutrient deficiencies, (2) supply convenient forms energy macronutrients, (3) provision direct benefits or (4) indirect such supporting intense training regimens. The appropriate some benefit athlete, others may harm athlete’s health, performance, and/or livelihood reputation (if an antidoping rule violation results). A complete nutritional assessment should be undertaken before decisions regarding are made. Supplements claiming directly indirectly enhance typically largest group products marketed only few (including caffeine, creatine, specific buffering agents nitrate) have good evidence benefits. However, responses affected by scenario vary widely between individuals because factors that include genetics, microbiome habitual diet. intended thoroughly trialled simulated competition being used competition. Inadvertent ingestion substances prohibited under codes govern sport known risk taking supplements. Protection health awareness potential for must paramount; expert professional opinion assistance strongly advised athlete embarks on use.

Язык: Английский

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Mechanisms of chromium-induced toxicity

Current Opinion in Toxicology, Год журнала: 2019, Номер 14, С. 1 - 7

Опубликована: Апрель 1, 2019

Язык: Английский

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UEFA expert group statement on nutrition in elite football. Current evidence to inform practical recommendations and guide future research

British Journal of Sports Medicine, Год журнала: 2020, Номер 55(8), С. 416 - 416

Опубликована: Окт. 23, 2020

Football is a global game which constantly evolving, showing substantial increases in physical and technical demands. Nutrition plays valuable integrated role optimising performance of elite players during training match-play, maintaining their overall health throughout the season. An evidence-based approach to nutrition emphasising, 'food first' philosophy (ie, food over supplements), fundamental ensure effective player support. This requires relevant scientific evidence be applied according constraints what practical feasible football setting. The science underpinning sports evolving fast, practitioners must alert new developments. In response these developments, Union European Associations (UEFA) has gathered experts research as well working with clubs national associations/federations issue an expert statement on range topics nutrition: (1) match day nutrition, (2) (3) body composition, (4) stressful environments travel, (5) cultural diversity dietary considerations, (6) supplements, (7) rehabilitation, (8) referees (9) junior high-level players. group provide narrative synthesis background relating based knowledge experience literature, applying within Our intention readers content help drive own recommendations. addition, guidance researchers where focus future efforts.

Язык: Английский

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Dietary Regulation of Oxidative Stress in Chronic Metabolic Diseases

Foods, Год журнала: 2021, Номер 10(8), С. 1854 - 1854

Опубликована: Авг. 11, 2021

Oxidative stress is a status of imbalance between oxidants and antioxidants, resulting in molecular damage interruption redox signaling an organism. Indeed, oxidative has been associated with many metabolic disorders due to unhealthy dietary patterns may be alleviated by properly increasing the intake antioxidants. Thus, it quite important adopt healthy mode regulate maintain cell tissue homeostasis, preventing inflammation chronic diseases. This review focuses on links nutrients health, summarizing role 'unhealthy' pathway activities individuals how further regulated balanced diets.

Язык: Английский

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Prevalence and patterns of dietary supplement use in elite Spanish athletes

Journal of the International Society of Sports Nutrition, Год журнала: 2019, Номер 16(1)

Опубликована: Янв. 15, 2019

Dietary supplementation is a common strategy to achieve specific health status or performance benefit. Several investigations have focused on the prevalence of dietary supplement use by athletes. However, information how athletes manage and purchase supplements scarce.

Язык: Английский

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Protein Supplements and Their Relation with Nutrition, Microbiota Composition and Health: Is More Protein Always Better for Sportspeople?

Nutrients, Год журнала: 2019, Номер 11(4), С. 829 - 829

Опубликована: Апрель 12, 2019

Sports nutrition products are developed and targeted mainly for athletes to improve their nutrient intake, performance, muscle growth. The fastest growing consumer groups these recreational sportspeople lifestyle users. Although may have elevated physiological protein requirements they benefit from dietary supplements, the evidence regarding role of supplements in sedentary populations is somewhat complex contradictory. In high-protein diets, more undigested protein-derived constituents end up large intestine compared moderate or low-protein hence, bacterial amino acid metabolism takes place colon, having both positive negative systemic metabolic effects on host. aim present review summarize impact diets health, consumers. We opening debate about current intake recommendations, with an emphasis evidence-based intestinal microbiota personalized guidelines supplementation

Язык: Английский

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Swifter, higher, stronger: What’s on the menu?

Science, Год журнала: 2018, Номер 362(6416), С. 781 - 787

Опубликована: Ноя. 15, 2018

The exploits of elite athletes delight, frustrate, and confound us as they strive to reach their physiological, psychological, biomechanical limits. We dissect nutritional approaches optimal performance, showcasing the contribution modern sports science gold medals world titles. Despite an enduring belief in a single, superior "athletic diet," diversity nutrition practices among successful arises from specificity metabolic demands different periodization training competition goals. Pragmatic implementation strategies real-world scenarios prioritization important when themes are conflict add this variation. Lastly, differences athlete both promote reflect areas controversy disagreement experts.

Язык: Английский

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Dietary Supplement and Food Contaminations and Their Implications for Doping Controls

Foods, Год журнала: 2020, Номер 9(8), С. 1012 - 1012

Опубликована: Июль 27, 2020

A narrative review with an overall aim of indicating the current state knowledge and relevance concerning food supplement contamination and/or adulteration doping agents respective implications for sports drug testing is presented. The identification a agent (or its metabolite) in samples constitutes violation anti-doping rules defined by World Anti-Doping Agency. Reasons such Adverse Analytical Findings (AAFs) include intentional misuse performance-enhancing/banned drugs; however, also scenario inadvertent administrations was proven past, caused by, amongst others, ingestion contaminated dietary supplements, drugs, or food. Even though controversial positions effectiveness supplements healthy subjects exist, they are frequently used athletes, anticipating positive effects on health, recovery, performance. However, most users unaware fact that administration products can be associated unforeseeable health risks AAFs sports. In particular anabolic androgenic steroids (AAS) stimulants have been found as undeclared ingredients either result cross-contaminations due to substandard manufacturing practices missing quality controls admixture increase preparations. Cross-contaminations were affect therapeutic While sensitivity assays employed test pharmaceuticals impurities accordance good practice guidelines allowing exclude any physiological effects, minute trace amounts contaminating compounds still tests. addition, potential source unintentional doping, prominent example being meat tainted clenbuterol. athletes’ compliance tested routine controls. Different measures including offers topical information education athletes well maintenance databases summarizing low- high-risk important cornerstones preventing rule violations. Further, collection additional analytical data has shown allow supporting management processes.

Язык: Английский

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Sports Foods and Dietary Supplements for Optimal Function and Performance Enhancement in Track-and-Field Athletes

International Journal of Sport Nutrition and Exercise Metabolism, Год журнала: 2018, Номер 29(2), С. 198 - 209

Опубликована: Окт. 9, 2018

Athletes are exposed to numerous nutritional products, attractively marketed with claims of optimizing health, function, and performance. However, there is limited evidence support many these claims, the efficacy safety products questionable. The variety aids considered for use by track-and-field athletes includes sports foods, performance supplements, therapeutic aids. Support foods five evidence-based supplements (caffeine, creatine, nitrate/beetroot juice, β-alanine, bicarbonate) varies according event, specific scenario use, individual athlete’s goals responsiveness. Specific challenges include developing protocols manage repeated in multievent or heat-final competitions interaction between several which used concurrently. Potential disadvantages supplement expense, false expectancy, risk ingesting banned substances sometimes present as contaminants. a pragmatic approach decision-making process recommended. authors conclude that it pertinent be only where strong base supports their safe, legal, effective such trialed thoroughly before committing competition setting.

Язык: Английский

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Recreational and ergogenic substance use and substance use disorders in elite athletes: a narrative review

British Journal of Sports Medicine, Год журнала: 2019, Номер 53(12), С. 754 - 760

Опубликована: Май 16, 2019

Substances from various classes may be used for recreational purposes, self-treatment or to boost performance. When substance use shifts occasional regular, heavy hazardous use, positive and negative effects can develop that vary by class athlete. Regular of performance enhancing substances lead misuse, sanctions disorders.To review the prevalence, patterns risk factors, types intervention all in elite athletes sport, ethnicity, country gender.A comprehensive search was conducted identify studies compared prevalence misuse disorders with those non-athletes provided detailed demographic sport variations reasons factors each main class.Alcohol, cannabis, tobacco (nicotine) prescribed opioids stimulants are most commonly athletes, but generally at lower rates than non-athletes. In contrast, use/misuse binge alcohol, oral tobacco, non-prescription anabolic-androgenic steroids higher among non-athletes, especially power collision sports. Cannabis/cannabinoids seem have replaced nicotine as second substance.Substance varies country, gender, competitive level. There no on disorder male female few direct comparison groups.

Язык: Английский

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