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1.
Br J Sports Med ; 52(7): 439-455, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29540367

RESUMO

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. The appropriate use of some supplements can benefit the athlete, but others may harm the athlete's health, performance, and/or livelihood and reputation (if an antidoping rule violation results). A complete nutritional assessment should be undertaken before decisions regarding supplement use are made. Supplements claiming to directly or indirectly enhance performance are typically the largest group of products marketed to athletes, but only a few (including caffeine, creatine, specific buffering agents and nitrate) have good evidence of benefits. However, responses are affected by the scenario of use and may vary widely between individuals because of factors that include genetics, the microbiome and habitual diet. Supplements intended to enhance performance should be thoroughly trialled in training or simulated competition before being used in competition. Inadvertent ingestion of substances prohibited under the antidoping codes that govern elite sport is a known risk of taking some supplements. Protection of the athlete's health and awareness of the potential for harm must be paramount; expert professional opinion and assistance is strongly advised before an athlete embarks on supplement use.


Assuntos
Atletas , Desempenho Atlético , Suplementos Nutricionais , Fenômenos Fisiológicos da Nutrição Esportiva , Consenso , Dieta , Humanos
2.
Int J Sport Nutr Exerc Metab ; 28(2): 104-125, 2018 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-29589768

RESUMO

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. The appropriate use of some supplements can offer benefits to the athlete, but others may be harmful to the athlete's health, performance, and/or livelihood and reputation if an anti-doping rule violation results. A complete nutritional assessment should be undertaken before decisions regarding supplement use are made. Supplements claiming to directly or indirectly enhance performance are typically the largest group of products marketed to athletes, but only a few (including caffeine, creatine, specific buffering agents and nitrate) have good evidence of benefits. However, responses are affected by the scenario of use and may vary widely between individuals because of factors that include genetics, the microbiome, and habitual diet. Supplements intended to enhance performance should be thoroughly trialed in training or simulated competition before implementation in competition. Inadvertent ingestion of substances prohibited under the anti-doping codes that govern elite sport is a known risk of taking some supplements. Protection of the athlete's health and awareness of the potential for harm must be paramount, and expert professional opinion and assistance is strongly advised before embarking on supplement use.


Assuntos
Atletas , Desempenho Atlético/fisiologia , Suplementos Nutricionais , Fenômenos Fisiológicos da Nutrição Esportiva , Consenso , Dopagem Esportivo , Guias como Assunto , Humanos , Necessidades Nutricionais , Substâncias para Melhoria do Desempenho
3.
Br J Sports Med ; 48(7): 491-7, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24620037

RESUMO

Protecting the health of the athlete is a goal of the International Olympic Committee (IOC). The IOC convened an expert panel to update the 2005 IOC Consensus Statement on the Female Athlete Triad. This Consensus Statement replaces the previous and provides guidelines to guide risk assessment, treatment and return-to-play decisions. The IOC expert working group introduces a broader, more comprehensive term for the condition previously known as 'Female Athlete Triad'. The term 'Relative Energy Deficiency in Sport' (RED-S), points to the complexity involved and the fact that male athletes are also affected. The syndrome of RED-S refers to impaired physiological function including, but not limited to, metabolic rate, menstrual function, bone health, immunity, protein synthesis, cardiovascular health caused by relative energy deficiency. The cause of this syndrome is energy deficiency relative to the balance between dietary energy intake and energy expenditure required for health and activities of daily living, growth and sporting activities. Psychological consequences can either precede RED-S or be the result of RED-S. The clinical phenomenon is not a 'triad' of the three entities of energy availability, menstrual function and bone health, but rather a syndrome that affects many aspects of physiological function, health and athletic performance. This Consensus Statement also recommends practical clinical models for the management of affected athletes. The 'Sport Risk Assessment and Return to Play Model' categorises the syndrome into three groups and translates these classifications into clinical recommendations.


Assuntos
Desempenho Atlético/fisiologia , Síndrome da Tríade da Mulher Atleta/prevenção & controle , Doenças Metabólicas/prevenção & controle , Conservadores da Densidade Óssea/uso terapêutico , Suplementos Nutricionais , Ingestão de Energia/fisiologia , Metabolismo Energético/fisiologia , Feminino , Síndrome da Tríade da Mulher Atleta/metabolismo , Humanos , Masculino , Recuperação de Função Fisiológica , Medição de Risco , Medicina Esportiva
5.
Br J Sports Med ; 47(16): 1003-11, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24115479

RESUMO

Morbidity and mortality from preventable, non-communicable chronic disease (NCD) threatens the health of our populations and our economies. The accumulation of vast amounts of scientific knowledge has done little to change this. New and innovative thinking is essential to foster new creative approaches that leverage and integrate evidence through the support of big data, technology and design thinking. The purpose of this paper is to summarise the results of a consensus meeting on NCD prevention sponsored by the IOC in April 2013. Within the context of advocacy for multifaceted systems change, the IOC's focus is to create solutions that gain traction within healthcare systems. The group of participants attending the meeting achieved consensus on a strategy for the prevention and management of chronic disease that includes the following: (1) Focus on behavioural change as the core component of all clinical programmes for the prevention and management of chronic disease. (2) Establish actual centres to design, implement, study and improve preventive programmes for chronic disease. (3) Use human-centred design in the creation of prevention programmes with an inclination to action, rapid prototyping and multiple iterations. (4) Extend the knowledge and skills of Sports and Exercise Medicine (SEM) professionals to build new programmes for the prevention and treatment of chronic disease focused on physical activity, diet and lifestyle. (5) Mobilise resources and leverage networks to scale and distribute programmes of prevention. True innovation lies in the ability to align thinking around these core strategies to ensure successful implementation of NCD prevention and management programmes within healthcare. The IOC and SEM community are in an ideal position to lead this disruptive change. The outcome of the consensus meeting was the creation of the IOC Non-Communicable Diseases ad hoc Working Group charged with the responsibility of moving this agenda forward.


Assuntos
Doença Crônica/prevenção & controle , Medicina Preventiva/métodos , Instituições de Assistência Ambulatorial/provisão & distribuição , Exercício Físico/fisiologia , Promoção da Saúde , Humanos , Assistência Centrada no Paciente/métodos , Medicina Preventiva/educação , Comportamento de Redução do Risco , Medicina Esportiva/educação , Medicina Esportiva/métodos
6.
Clin J Sport Med ; 23(6): 419-29, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24169298

RESUMO

Morbidity and mortality from preventable, noncommunicable chronic disease (NCD) threatens the health of our populations and our economies. The accumulation of vast amounts of scientific knowledge has done little to change this. New and innovative thinking is essential to foster new creative approaches that leverage and integrate evidence through the support of big data, technology, and design thinking. The purpose of this paper is to summarize the results of a consensus meeting on NCD prevention sponsored by the International Olympic Committee (IOC) in April 2013. Within the context of advocacy for multifaceted systems change, the IOC's focus is to create solutions that gain traction within health care systems. The group of participants attending the meeting achieved consensus on a strategy for the prevention and management of chronic disease that includes the following: 1. Focus on behavioral change as the core component of all clinical programs for the prevention and management of chronic disease. 2. Establish actual centers to design, implement, study, and improve preventive programs for chronic disease. 3. Use human-centered design (HCD) in the creation of prevention programs with an inclination to action, rapid prototyping and multiple iterations. 4. Extend the knowledge and skills of Sports and Exercise Medicine (SEM) professionals to build new programs for the prevention and treatment of chronic disease focused on physical activity, diet, and lifestyle. 5. Mobilize resources and leverage networks to scale and distribute programs of prevention. True innovation lies in the ability to align thinking around these core strategies to ensure successful implementation of NCD prevention and management programs within health care. The IOC and SEM community are in an ideal position to lead this disruptive change. The outcome of the consensus meeting was the creation of the IOC Non-Communicable Diseases ad hoc Working Group charged with the responsibility of moving this agenda forward.


Assuntos
Doença Crônica/prevenção & controle , Centros Comunitários de Saúde , Exercício Físico , Comportamentos Relacionados com a Saúde , Saúde Pública , Humanos , Assistência Centrada no Paciente , Medicina Esportiva
7.
Br J Sports Med ; 45(11): 931-6, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21836177

RESUMO

A growing body of scientific evidence indicates that the declining levels of physical activity and fitness in children and youth are associated with adverse impacts on their health, including rising levels of obesity, diabetes, heart disease, metabolic syndrome and increased risk of sports injury. In response, a number of governmental and non-governmental organisations have instituted programmes to promote health in children and youth through sports and physical activity. Many of these programmes have achieved success in increasing participation in sports and other forms of physical activity and, by extension, improving the health of these young people. These programmes have also been used successfully to enhance the lives of the young participants by means other than improving physical health.


Assuntos
Exercício Físico/fisiologia , Promoção da Saúde/métodos , Aptidão Física/fisiologia , Esportes/fisiologia , Adolescente , Criança , Educação em Saúde , Política de Saúde , Humanos , Agências Internacionais , Serviços de Saúde Escolar/organização & administração
14.
J Allergy Clin Immunol ; 122(2): 254-60, 260.e1-7, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18678340

RESUMO

Respiratory symptoms cannot be relied on to make a diagnosis of asthma and/or airways hyperresponsiveness (AHR) in elite athletes. For this reason, the diagnosis should be confirmed with bronchial provocation tests. Asthma management in elite athletes should follow established treatment guidelines (eg, Global Initiative for Asthma) and should include education, an individually tailored treatment plan, minimization of aggravating environmental factors, and appropriate drug therapy that must meet the requirements of the World Anti-Doping Agency. Asthma control can usually be achieved with inhaled corticosteroids and inhaled beta(2)-agonists to minimize exercise-induced bronchoconstriction and to treat intermittent symptoms. The rapid development of tachyphylaxis to beta(2)-agonists after regular daily use poses a dilemma for athletes. Long-term intense endurance training, particularly in unfavorable environmental conditions, appears to be associated with an increased risk of developing asthma and AHR in elite athletes. Globally, the prevalence of asthma, exercise-induced bronchoconstriction, and AHR in Olympic athletes reflects the known prevalence of asthma symptoms in each country. The policy of requiring Olympic athletes to demonstrate the presence of asthma, exercise-induced bronchoconstriction, or AHR to be approved to inhale beta(2)-agonists will continue.


Assuntos
Agonistas Adrenérgicos beta/efeitos adversos , Agonistas Adrenérgicos beta/uso terapêutico , Asma Induzida por Exercício , Esportes , Asma Induzida por Exercício/diagnóstico , Asma Induzida por Exercício/etiologia , Asma Induzida por Exercício/prevenção & controle , Asma Induzida por Exercício/terapia , Testes de Provocação Brônquica , Broncoconstrição/fisiologia , Humanos
16.
Med Sport Sci ; 62: 1-10, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28571021

RESUMO

The fight against doping in sport as we know it today commenced by the creation of the International Olympic Committee (IOC) Medical Commission in 1961 following the death of a Danish cyclist during the Rome Olympic Games the year before. After a slow start, the fight got under way as from the early 1970s under the leadership of the IOC and of the International Association of Athletics Federations. Despite a lack of understanding and weak support even from the sports community, a series of measures were taken during the 1970s and 1980s which still form cornerstones of today's anti-doping strategy. In addition to information and education campaigns, the most important examples are the introduction of procedural rules for doping controls, the establishment and follow-up of a list of prohibited substances and methods, the accreditation of doping control laboratories, the introduction of in- and out-of-competition testing, rules for therapeutic use exemption, and the introduction of blood sampling. During the 1990s, the anti-doping fight gained increasing support both inside and outside the sport community. In order to harmonize the wide variety of rules that had developed both in sport organizations and at the domestic level and to promote anti-doping activities, the World Anti-Doping Agency (WADA) was jointly created by the Olympic movement and the public authorities in 1999. WADA is today carrying on the fight supported by the universally accepted WADA Code and an International Anti-Doping Convention under UNESCO.


Assuntos
Dopagem Esportivo/prevenção & controle , Esportes/normas , Detecção do Abuso de Substâncias/história , Acreditação , Dopagem Esportivo/história , História do Século XX , História do Século XXI , Humanos , Cooperação Internacional , Laboratórios , Preparações Farmacêuticas , Formulação de Políticas , Detecção do Abuso de Substâncias/normas
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