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Waterlogged: The Serious Problem of Overhydration in Endurance Sports eBook Kindle

5.0 de 5 estrelas 1 avaliação de cliente

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Número de páginas: 429 páginas Dicas de vocabulário: Habilitado Configuração de fonte: Habilitado
Page Flip: Habilitado Idioma: Inglês

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Descrições do Produto

Descrição do produto

"Drink as much as you can, even before you feel thirsty." That's been the mantra to athletes and coaches for the past three decades, and bottled water and sports drinks have flourished into billion-dollar industries in the same short time. The problem is that an overhydrated athlete is at a performance disadvantage and at risk of exercise-associated hyponatremia (EAH)--a potentially fatal condition.

Dr. Tim Noakes takes you inside the science of athlete hydration for a fascinating look at the human body’s need for water and how it uses the liquids it ingests. He also chronicles the shaky research that reported findings contrary to results in nearly all of Noakes’ extensive and since-confirmed studies.

In Waterlogged, Noakes sets the record straight, exposing the myths surrounding dehydration and presenting up-to-date hydration guidelines for endurance sport and prolonged training activities. Enough with oversold sports drinks and obsessing over water consumption before, during, and after every workout, he says. Time for the facts—and the prevention of any more needless fatalities.

Important Notice: The digital edition of this book is missing some of the images found in the physical edition.

Sobre o Autor

Known throughout the academic community for the high-caliber nature of his scientific insights and work, Dr. Timothy Noakes is Discovery Health professor of exercise and sport science at the University of Cape Town in South Africa. He is also director of the Medical Research Council/University of Cape Town Research Unit for Exercise Science and Sports Medicine at the Sports Science Institute of South Africa in Newlands. Noakes was awarded a doctorate in science (DSc) in 2002, the highest degree awarded by the University of Cape Town. Publishing the first scientific article on exercise-associated hyponatremia (EAH) is considered among his greatest achievements.

Noakes is a veteran of more than 70 marathons and ultramarathons, and his book Lore of Running (Human Kinetics, 2003) is considered a classic by serious distance runners. In addition, Noakes is an editorial board member for many international sport science journals and a former president of the South African Sports Medicine Association. In 1996, he presented the prestigious J.B. Wolffe Memorial Lecture at the American College of Sports Medicine's annual meeting. In 1999 he was elected as one of 22 founding members of the International Olympic Committee's Olympic Science Academy. The National Research Foundation of South Africa considers Noakes an A-rated scientist, and in 2008 he received the Order of Mapungubwe (Silver) from the president of South Africa.

Noakes and his wife, Marilyn Anne, reside in Cape Town.


Detalhes do produto

  • Formato: eBook Kindle
  • Tamanho do arquivo: 9756 KB
  • Número de páginas: 448 páginas
  • Vendido por: Amazon Servicos de Varejo do Brasil Ltda
  • Idioma: Inglês
  • ASIN: B0081U6WWG
  • Leitura de texto: Habilitado
  • X-Ray:
  • Dicas de vocabulário: Habilitado
  • Leitor de tela: Compatível
  • Configuração de fonte: Habilitado
  • Avaliação média: 5.0 de 5 estrelas 1 avaliação de cliente
  • Lista de mais vendidos da Amazon: #57,218 entre os mais vendidos na Loja Kindle (Conheça os 100 mais vendidos na Loja Kindle)

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Principais avaliações de clientes

Formato: eBook Kindle Compra verificada
Algumas pessoas ainda acham que "quando sentir sede seu corpo já está desidratado", "a cor da urina indica a desidratação (quanto mais amarelada, mais desidratado)", "atletas que suam muito precisam consumir sal", "é preciso beber 2 litros de água por dia". Todas estas frases são mitos, SEM QUALQUER BASE CIENTÍFICA!!!

Este livro, escrito por um cientista, Tim Noakes, com inúmeras publicações em periódicos internacionais de alto impacto, diz que o mito do "quando você sente sede já está desidratado", entre outros mitos, foi criado pela indústria de bebidas esportivas. Repito, não tem qualquer base científica. Infelizmente muitos ainda pensam assim, mas este conselho (beba antes de ter sede) está errado. Pode não fazer muito mal à maioria das pessoas, mas em alguns raros casos leva à morte (por hiponatremia).

O corpo humano tem um mecanismo regulador muito bom: a sede. Somente precisamos beber água quando temos sede, é o que diz Tim Noakes.

Outras conclusões do livro:
- Desidratação não é uma doença. E desidratação não contribui de forma alguma com outras doenças associadas a exercícios prolongados como maratonas, ultramaratonas e triatlos.
- Não há necessidade de ingerir mais sódio do que o seu apetite determinar.
- Não há necessiade de consumir sódio durante o exercício.

Um livro longo, para quem tem paciência e vontade de conhecer a verdade.
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Avaliações mais úteis de consumidores na Amazon.com (beta) (Pode incluir avaliações do Programa de Recompensas para Primeiros Avaliadores)

Amazon.com: 4.5 de 5 estrelas 52 avaliações
Esta avaliação foi considerada útil por 9 de 9 pessoa(s):
5.0 de 5 estrelas Best Science on Water and Electrolytes for Ultrarunners 18 de agosto de 2012
Por Jaque - Publicada na Amazon.com
Formato: Capa comum Compra verificada
I am an Ultrarunner for over 10 years. I do training in hot summers, often running 20 miles on difficult trails that take close to 4 hours. I have been running without taking a water bottle or taking salt supplements for the last five years or so without any ill effect. After reading this book, I know why a little dehydration never hurt anybody! This book is just the right one for any ultrarunner who is simply curious about the science on hydration. The book is not a self-help book for the recreational runner who runs less than a couple of hours in a single run. The book is heavy on science with lots of charts, graphs and references to scientific literature. The book is somewhat verbose and at times repetitive. However, I found it engaging. After the first read, I come back to it again and again and reread some snippets. It will become a valuable reference for any serious runner.

Dr. Noakes, himself an ultra-marathoner, takes on the establishment, the big sports drink industry and refutes with solid science the prevailing dogma and mythology of hydration. First he establishes with evidence that humans are evolved to withstand severe dehydration without ill effects. Then he traces the history of research on the role of salt in dehydration and muscle cramps. Then he recounts the history of Gatorade and sports drink industry and its powerful influence on the academic researchers and running authorities. He also touches lightly on the influence of glucose and carbohydrates on performance. But one should not rely on this book on that subject, since the focus is water and salts. Finally, he devotes nearly a third of his book to the problem of overhydration with scores of case studies. At times he shows genuine contempt and anger at the sports drink industry and sports authorities. Though he doesn't directly accuse, but does somewhat implicate the advertisements from the sports drink industry for the deaths of runners due to overhydration. The sad part of these stories is that the runners followed the advice in those advertisements!

In the final chapter, Dr. Noakes summarizes his findings and recommendations. Dehydration was never a problem, is not a problem and is not likely to be a problem in any modern organized endurance sport. However overhydrations is a growing problem, is very serious to one's health and likely to remain a problem in the running community heavily influenced by the sports drink industry. His simple advice is to drink water when you feel thirsty and don't over do it.
Esta avaliação foi considerada útil por 2 de 2 pessoa(s):
5.0 de 5 estrelas Waterlogged is an excellent book and covers pretty much ever scientific paper every ... 14 de maio de 2016
Por Tony - Publicada na Amazon.com
Formato: Capa comum Compra verificada
This is a very well written book. I remember reading Dr. Noakes "Lore of Running" in high school and being overwhelmed by the science involved in the book. Fast forward to grad school and I can comprehend all the studies and data that he presents. Waterlogged is an excellent book and covers pretty much ever scientific paper every written on fluid, salt balance, and the effect on performance in regards to those two areas. For the lay reader, sections do dive into the research heavily and can be intimidating to understand the implications of the paper and what may have effected the study, but Dr. Noakes adds a lot of conclusions and summaries for the take away points. HIGHLY recommended for all runners, coachers, and scientists
Esta avaliação foi considerada útil por 5 de 5 pessoa(s):
5.0 de 5 estrelas An absolute convincing book about the serious problem of Overhydration 22 de agosto de 2013
Por dag ole storrosten - Publicada na Amazon.com
Formato: eBook Kindle Compra verificada
I have read the book entirely a couple of times. It is a very convincing book. I have seldom seen such a metodhical and torough screening of all research that is done wthin this area. The author is As most of us, I have learned to drink much before and under exercise and races. I am sweating heavily; especially indoor cycling during hard and long training sessions. A few times I was nearly fainting afterwards. My doctors and a Neurologist I was visiting a few times recommended me to drink much more than what my thirst told me and to mix in a salt tablet or two.After reading the book, I have strictly followed my thirst as an indicator for drinking during long haul endurance bike races during this entire biking season. I feel much better. And I feel quite safe that I am doing the right thing - based on the knowledge from this book. I highly recommend this book for those who are doing long haul running or cycling - even nordic skiing during the winther season.
Esta avaliação foi considerada útil por 4 de 4 pessoa(s):
5.0 de 5 estrelas Cuts through the BS and provides a factual basis for understanding endurance sports hydration and electrolytes issues. 20 de outubro de 2013
Por fred e case - Publicada na Amazon.com
Formato: Capa comum Compra verificada
There is too much speculation, BS and hype out there surrounding the issue of hydration and electrolytes in endurance sports, in my case, ultrarunning. The biggest load is people who think you must drink water (or worse, sports drinks) constantly, or risk cramps and worse. It just isn't so. There are people who swear by taking a Tums every 10 or 20 miles, or drinking pickle juice, all to "protect" their muscles. Ohh, let's not forget the famous "mustard packets" that will stop muscle cramps cold. Total BS. People, you may as well use a Ouija board to decide your fate if you don't want to base important decisions on factual data and hard research. This guy Noakes is the real deal - not just an ultrarunner himself, but a scientist with a long lasting interest in truly figuring out how our bodies work when engaged in ultra-distance endurance events. The book is impressive, with exhaustively stated discussions of all aspects of the issue, and full references to many studies and papers. It will feel like you are back in school with a life science text book, except that this one is focused on real issues we care about and personally experience out there on the trails. The book will help you to manage your own hydration and electrolyte issues with confidence.
Esta avaliação foi considerada útil por 6 de 6 pessoa(s):
5.0 de 5 estrelas Great read! 24 de julho de 2012
Por Aaron R. Olson - Publicada na Amazon.com
Formato: eBook Kindle Compra verificada
If you are an endurance athlete, you need to read this book. In it Noakes challenges the conventional belief that you should not loose water weight during exercise for max performance. He points out that this conclusion is based on erroneous science and is totally bogus since the fastest runners typically loose the most weight during endurance events! While Gatorade scientists claim that they could have gone even faster if they had hydrated more. Noakes' points out that certainly the athletes who are the fastest would be most eager to gain a performance edge. According the Gatorade science, if they would have only known to drink a few extra ounces of Gatorade to maintain weight during competition they could be setting world records! How foolish of these athletes! Of course this argument is totally bogus and has never been proven. Noakes goes into the science behind it all in amazing detail. Muscle cramps, sodium tablets, heatstroke, he covers it all. Oh and if you were taking sodium tablets like me during marathons to prevent cramps go ahead and chuck them. Sodium supplementation has never been shown to work and it may even make your problems worse since your body has to process all that extra sodium and use its precious water resources to do so. If you are a salty sweater it is evidence that you have too much salt in your body and your body is trying to get rid of it. Your body amazingly maintains its sodium balance even on very low salt diets for months on end. Loved this book! Buy it if you like challenging conventional wisdom.
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