Fluid and electrolyte needs for training, competition, and recovery

@article{Shirreffs2011FluidAE,
  title={Fluid and electrolyte needs for training, competition, and recovery},
  author={Susan M. Shirreffs and Michael N. Sawka},
  journal={Journal of Sports Sciences},
  year={2011},
  volume={29},
  pages={S39 - S46}
}
Abstract Fluids and electrolytes (sodium) are consumed by athletes, or recommended to athletes, for a number of reasons, before, during, and after exercise. These reasons are generally to sustain total body water, as deficits (hypohydration) will increase cardiovascular and thermal strain and degrade aerobic performance. Vigorous exercise and warm/hot weather induce sweat production, which contains both water and electrolytes. Daily water (4–10 L) and sodium (3500–7000 mg) losses in active… 
Optimizing the restoration and maintenance of fluid balance after exercise-induced dehydration.
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The aim of this review is to provide an overview of the research related to factors that may affect postexercise rehydration, and to provide information related to optimal rates of fluid ingestion, advisable solutions to ingest during different duration recovery periods, and confirmation of mechanistic explanations for the observations outlined.
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Water and electrolytes intake before, during and after training of the athletes were inadequate regardless of type of sports and the age of athletes.
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Hypohydration and the consequent hyperthermia, however, can enhance the effectiveness of a heat acclimation program, resulting in improved endurance performance in warm and temperate environments.
Sports Dietitians Australia Position Statement: Nutrition for Exercise in Hot Environments.
TLDR
It is the position of Sports Dietitians Australia that exercise in hot and/or humid environments, or with significant clothing and/ or equipment that prevents body heat loss, provides significant challenges to an athlete's nutritional status, health, and performance.
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TLDR
Athletes should aim to maintain adequate levels of hydration, and they should minimize fluid losses during exercise to no more than 2% of their body weight.
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TLDR
It is suggested that after exercise induced dehydration, the ingestion of a 50 mmol/L NaCl solution leads to greater fluid retention compared with water, even when a meal is consumed postexercise, and ingestion of plain water may be effective for maintenance of fluid balance when food is consumed in the rehydration period.
Effects of Beer, Non-Alcoholic Beer and Water Consumption before Exercise on Fluid and Electrolyte Homeostasis in Athletes
TLDR
It is suggested that non-alcoholic beer before exercise could help maintain electrolyte homeostasis during exercise, as alcoholic beer intake reduced plasma Na+ and increased plasma K+ during Exercise, which may negatively affect health and physical performance, and the consumption of water before Exercise could induce decreases of Na+ in plasma during exercise.
Hydration and Cooling Strategies for Paralympic Athletes
TLDR
Flood and cooling needs should be periodized and individualized according to the athlete’s needs and impairment type, which can lead to increased risk for injury.
Optimal Composition of Fluid-Replacement
The objective of this article is to provide a review of the fundamental aspects of body fluid balance and the physiological consequences of water imbalances, as well as discuss considerations for the
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