Ronto P. The state of ultrarunning 2020: RunRepeatRun.com, IAU; 2020 [Available from: https://runrepeat.com/state-of-ultra-running.
Hoffman MD, Stuempfle KJ. Hydration strategies, weight change and performance in a 161 km ultramarathon. Res Sports Med. 2014;22(3):213–25.
McCubbin AJ, Cox GR, Costa RJS. Sodium Intake Beliefs, Information Sources, and Intended Practices of Endurance Athletes Before and During Exercise. Int J Sport Nutr Exerc Metab. 2019;29(4):371–81.
Schwellnus MP, Nicol J, Laubscher R, Noakes TD. Serum electrolyte concentrations and hydration status are not associated with exercise associated muscle cramping (EAMC) in distance runners. Br J Sports Med. 2004;38(4):488–92.
Speedy DB, Thompson JM, Rodgers I, Collins M, Sharwood K, Noakes TD. Oral salt supplementation during ultradistance exercise. Clin J Sport Med. 2002;12(5):279–84.
Hew-Butler TD, Sharwood K, Collins M, Speedy D, Noakes T. Sodium supplementation is not required to maintain serum sodium concentrations during an Ironman triathlon. Br J Sports Med. 2006;40(3):255–9.
Lipman GS, Burns P, Phillips C, Jensen J, Little C, Jurkiewicz C, et al. Effect of sodium supplements and climate on dysnatremia during ultramarathon running. Clin J Sport Med. 2020. https://doi.org/10.1097/JSM.0000000000000832.
Hew-Butler T, Rosner MH, Fowkes-Godek S, Dugas JP, Hoffman MD, Lewis DP, et al. Statement of the Third International Exercise-Associated Hyponatremia Consensus Development Conference, Carlsbad, California, 2015. Clin J Sports Med. 2015;25(4):303–20.
Meyer LG, Horrigan DJ Jr, Lotz WG. Effects of three hydration beverages on exercise performance during 60 hours of heat exposure. Aviat Space Environ Med. 1995;66(11):1052–7.
Sterns RH. Disorders of plasma sodium--causes, consequences, and correction. N Engl J Med. 2015;372(1):55–65.
Baker LB, De Chavez PJD, Ungaro CT, Sopeña BC, Nuccio RP, Reimel AJ, et al. Exercise intensity effects on total sweat electrolyte losses and regional vs. whole-body sweat [Na(+)], [Cl(-)], and [K(+)]. Eur J Appl Physiol. 2019;119(2):361–75.
Robinson S, Nicholas JR, Smith JH, Daly WJ, Pearcy M. Time relation of renal and sweat gland adjustments to salt deficiency in men. J Appl Physiol. 1955;8(2):159–65.
Luetkemeier MJ, Coles MG, Askew EW. Dietary sodium and plasma volume levels with exercise. Sports Med. 1997;23(5):279–86.
Titze J. A different view on sodium balance. Curr Opin Nephrol Hypertens. 2015;24(1):14–20.
Takamata A, Mack GW, Gillen CM, Nadel ER. Sodium appetite, thirst, and body fluid regulation in humans during rehydration without sodium replacement. Am J Physiol. 1994;266(5 Pt 2):R1493–502.
Thomas DT, Erdman KA, Burke LM. American College of Sports Medicine Joint Position Statement. Nutrition and Athletic Performance. Med Sci Sports Exerc. 2016;48(3):543–68.
Shirreffs SM, Sawka MN. Fluid and electrolyte needs for training, competition, and recovery. J Sports Sci. 2011;29(Suppl 1):S39–46.
Bailey E. Electrolytes: performance perks and real food sources NASM.org2017 [cited 2017 January 19]. Available from: https://blog.nasm.org/fitness/electrolytes-performance-perks-and-real-food-sources.
Radloff M. 2019. [cited 2020]. Available from: https://www.maritaradloff.com/blog/sodium-needs-for-endurance-athletes.
Adams JD, Sekiguchi Y, Suh HG, Seal AD, Sprong CA, Kirkland TW, et al. Dehydration Impairs Cycling Performance, Independently of Thirst: A Blinded Study. Med Sci Sports Exerc. 2018;50(8):1697–703.
Goulet ED. Effect of exercise-induced dehydration on time-trial exercise performance: a meta-analysis. Br J Sports Med. 2011;45(14):1149–56.
Currell K, Jeukendrup AE. Superior endurance performance with ingestion of multiple transportable carbohydrates. Med Sci Sports Exerc. 2008;40(2):275–81.
Stuempfle KJ, Hoffman MD, Weschler LB, Rogers IR, Hew-Butler T. Race diet of finishers and non-finishers in a 100 mile (161 km) mountain footrace. J Am Coll Nutr. 2011;30(6):529–35.
Del Coso J, Gonzalez-Millan C, Salinero JJ, Abian-Vicen J, Areces F, Lledo M, et al. Effects of oral salt supplementation on physical performance during a half-ironman: A randomized controlled trial. Scand J Med Sci Sports. 2016;26(2):156–64.
Twerenbold R, Knechtle B, Kakebeeke TH, Eser P, Müller G, von Arx P, et al. Effects of different sodium concentrations in replacement fluids during prolonged exercise in women. Br J Sports Med. 2003;37(4):300–3.
Hoffman MD, Stuempfle KJ. Does oral buffered sodium supplementation reduce nausea and vomiting during an ultramarathon? Res Sports Med. 2016;24(1):94–103.
Hoffman MD, Hew-Butler T, Stuempfle KJ. Exercise-associated hyponatremia and hydration status in 161-km ultramarathoners. Med Sci Sports Exerc. 2013;45(4):784–91.
Krabak BJ, Lipman GS, Waite BL, Rundell SD. Exercise-associated hyponatremia, hypernatremia, and hydration status in multistage ultramarathons. Wilderness Environ Med. 2017;28(4):291–8.
Lipman GS, Shea K, Christensen M, Phillips C, Burns P, Higbee R, et al. Ibuprofen versus placebo effect on acute kidney injury in ultramarathons: a randomised controlled trial. Emerg Med J. 2017;34(10):637–42.
Noakes TD, Sharwood K, Speedy D, Hew T, Reid S, Dugas J, et al. Three independent biological mechanisms cause exercise-associated hyponatremia: evidence from 2,135 weighed competitive athletic performances. Proc Natl Acad Sci USA. 2005;102(51):18550-5.
Barr SI, Costill DL, Fink WJ. Fluid replacement during prolonged exercise: effects of water, saline, or no fluid. Med Sci Sports Exerc. 1991;23(7):811–7.
Ebert TR, Martin DT, Bullock N, Mujika I, Quod MJ, Farthing LA, et al. Influence of hydration status on thermoregulation and cycling hill climbing. Med Sci Sports Exerc. 2007;39(2):323–9.
Sharwood KA, Collins M, Goedecke JH, Wilson G, Noakes TD. Weight changes, medical complications, and performance during an Ironman triathlon. Br J Sports Med. 2004;38(6):718–24.
Wichardt E, Mattsson CM, Ekblom B, Henriksson-Larsén K. Rhabdomyolysis/myoglobinemia and NSAID during 48 h ultra-endurance exercise (adventure racing). Eur J Appl Physiol. 2011;111(7):1541–4.
Wharam PC, Speedy DB, Noakes TD, Thompson JM, Reid SA, Holtzhausen LM. NSAID use increases the risk of developing hyponatremia during an Ironman triathlon. Med Sci Sports Exerc. 2006;38(4):618–22.
Knechtle B, Knechtle P, Wirth A, Rust CA, Roseman T. A faster running speed is associated with a greater body weight loss in 100-km ultra-marathoners. J Sports Sci. 2012;30:1131–40.
Speedy D, Noakes T, Rogers IR. Hyponatremia in ultradistance triathletes. Med Sci Sports Exerc. 1999;31:809–15.
Cosgrove SD, Black KE. Sodium supplementation has no effect on endurance performance during a cycling time-trial in cool conditions: a randomised cross-over trial. J Int Soc Sports Nutr. 2013;10:30.
Royal College of Paediatrics and Child Health. The differential diagnosis of hypernatremia in children, with particular reference to salt poisoning - an evidenced-based guideline. 2009;1-106:9.
Hoffman MD, Stuempfle KJ. Sodium supplementation and exercise-associated hyponatremia during prolonged exercise. Med Sci Sports Exerc. 2015;47(9):1781–7.