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Sports drink

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Watsons Water and Gatorade sports drinks on a shelf

Sports drinks, also known as electrolyte drinks, are functional beverages whose stated purpose is to help athletes replace water, electrolytes, and energy before, during and especially after training or competition. There are many perceived benefits and questions pertaining to the efficacy of use for sports and fitness performance.[1]

At times if used too much, in wrong cases (as most of nutritional items) they may hinder health or performance. The drinks, or some of their ingredients such as sugar, may not be suitable for certain conditions.[1]

Categories of sport drinks

Sports drinks can be split into three major types:[2]

  • Isotonic sport drinks contain similar concentrations of salt and sugar as in the human body.
  • Hypertonic sport drinks contain a higher concentration of salt and sugar than the human body.
  • Hypotonic sport drinks contain a lower concentration of salt and sugar than the human body.

Most sports drinks are approximately isotonic, having between 4 and 5 heaped teaspoons of sugar per eight ounce (13 and 19 grams per 250ml) serving.[3]

Purpose and effectiveness

Athletes that are actively training lose water and electrolytes from their bodies by sweating, and expending energy. Sports drinks are considered to be a solution for this problem through fluid replacement, carbohydrate loading and nutrient supplementation.[4]

It is perceived that sodium present in sports drinks might help to avoid Hyponatremia (low sodium in the blood), however, many studies counter this by demonstrating that this is not the case. Many studies claim that the consumption of an electrolyte containing sports drink does not protect against this condition.[5]

A stated purpose of sports drinks, which provide many calories of energy from sugars, is to improve performance and endurance. The potential benefits of sports drinks depends upon other factors including the quantity of the beverage ingested, the time if takes for the drink to be emptied from ones body, absorption time, and the carbohydrate type.[6]

Potentially harmful effects

Some potentially harmful health effects of drinking sports drinks without prolonged exercise include weight gain, diabetes and dental erosion.[7][8][9] These drinks are high in calories and sugar which thereby can contribute towards an unhealthy diet.[10] Generally, sports drinks contain two-thirds the amount of sugar found in a normal soda. The sugar found in sports drinks still exceeds the recommended amount of sugar in a day for a child.[11]

Sports drinks also contain high amount of caffeine among other dietary supplements. Often the concentration of caffeine is higher than found in soft drinks.[12] In moderate amounts, caffeine is not harmful and can provide various benefits regarding endurance however, in large amounts this can have adverse effects.[13] Although these drinks contain various different dietary supplements, health studies have claimed that there is a lack of thorough labelling which means that consumers may not always be aware of what they are consuming.[12]

History

In the 19th and early 20th centuries, athletes occasionally drank beer of low alcohol content to replenish water, minerals and energy in the body. As the water is boiled during the brewing process and thus sterilized, the beer was a safer option than water from an unknown source.[14] However, studies suggest that even a low dose of ethanol decreases endurance performance: it inhibits liver glucose output during exercise, and also impairs psychomotor skills such as reaction time, hand-eye coordination and balance.[15]

Since the first modern Olympics, fluid intake during sports have varied a lot due to a lack of consensus in the scientific community pertaining to the use of sports drinks. In the early 1900s there was a widespread belief that consumption of fluids such as water during exercise was unnecessary.[16] However, with the advancement of exercise physiology in 1923, the cardiovascular model of thermoregulation was researched by A.V. Hill.[16] Based on this model, the consequences of water loss and the significance of fluid consumption was emphasized.[16]

Energy and sports drinks first appeared in Europe and Asia in the 1960s as a response to demands for dietary supplements that would increase energy. Taisho Pharmaceuticals, a Japanese company, introduced Lipovitan D, one of the first sports/energy drinks on the market in 1961.[17] Since then, sports drinks have developed into a multibillion dollar market.

Commercial Market

The sports and energy drinks market is rapidly growing around the world. Sports drinks are included within the functional drinks market. Within the functional drinks category, sports and energy drinks account for the largest volume growth.[17] These drinks have experienced exponential growth of more than 240% in the United States of America and around the world from the years 2004 to 2009.[17]

There have been a variety of different types of drinks introduced to the market over the years and a lot of these drinks are targeted towards young athletes.[18]

Examples of sports drinks

Commercially available sports drinks include:

See also

References

Wikimedia Commons has media related to Sports drinks.
  1. ^ a b Deborah Cohen (2012). "The truth about sports drinks". BMJ. 345: e4737. doi:10.1136/bmj.e4737. PMID 22810386. S2CID 35181482. Retrieved 29 March 2013.
  2. ^ Rowlands, David S.; Kopetschny, Brigitte Hani; Badenhorst, Claire E. (1 February 2022). "The Hydrating Effects of Hypertonic, Isotonic and Hypotonic Sports Drinks and Waters on Central Hydration During Continuous Exercise: A Systematic Meta-Analysis and Perspective". Sports Medicine. 52 (2): 349–375. doi:10.1007/s40279-021-01558-y. ISSN 1179-2035. PMC 8803723. PMID 34716905.
  3. ^ "Impact of sports and energy drinks in athletes for performance based activities". Asian Journal of Multidimensional Research. 10 (10). 2021. ISSN 2278-4853.
  4. ^ Smith, Jennifer (1992). "A Look at the Components and Effectiveness of Sports Drinks". Journal of Athletic Training. 27 (2): 173–176. ISSN 1062-6050. PMC 1317152. PMID 16558151.
  5. ^ ROSNER, MITCHELL H. (2019). "EXERCISE-ASSOCIATED HYPONATREMIA". Transactions of the American Clinical and Climatological Association. 130: 76–87. ISSN 0065-7778. PMC 6735969. PMID 31516170.
  6. ^ Coombes, Jeff S.; Hamilton, Karyn L. (1 March 2000). "The Effectiveness of Commercially Available Sports Drinks". Sports Medicine. 29 (3): 181–209. doi:10.2165/00007256-200029030-00004. ISSN 1179-2035.
  7. ^ Schneider, Marcie Beth. "Sports Drinks and Energy Drinks for Children and Adolescents: Are They Appropriate?". publications.aap.org. Retrieved 3 October 2022.
  8. ^ Noble, Warden H; Donovan, Terence E; Geissberger, Marc (1 April 2011). "Sports drinks and dental erosion". Journal of the California Dental Association. 39 (4): 233–238. ISSN 1942-4396. PMID 21675676.
  9. ^ von Fraunhofer, J Anthony; Rogers, Matthew M (1 January 2005). "Effects of sports drinks and other beverages on dental enamel". General dentistry. 53 (1): 28–31. ISSN 0363-6771. PMID 15779219.
  10. ^ Schneider, Marcie Beth. "Sports Drinks and Energy Drinks for Children and Adolescents: Are They Appropriate?". publications.aap.org. Retrieved 3 October 2022.
  11. ^ Rath, Mandy (February 2012). "Energy drinks: What is all the hype? The dangers of energy drink consumption: The dangers of energy drink consumption". Journal of the American Academy of Nurse Practitioners. 24 (2): 70–76. doi:10.1111/j.1745-7599.2011.00689.x.
  12. ^ a b Macdonald, James (1 March 2013). "The Potential Adverse Health Effects of Energy Drinks". American Family Physician. 87 (5): 321–321.
  13. ^ Burke, Louise M. (6 December 2008). "Caffeine and sports performance". Applied Physiology, Nutrition, and Metabolism. 33 (6): 1319–1334. doi:10.1139/H08-130. ISSN 1715-5312.
  14. ^ Mika Rissanen (May 2014). "Beer Breaks during the Tour de France. Some observations on beer and cycling in the early 1900s". Ludica, Annali di Storia e Civiltà del Gioco, 17-18 (2011-2012), Pp. 188-190. Ludica, annali di storia e civiltà del gioco. Retrieved 27 September 2016.
  15. ^ Virgile Lecoultre; Yves Schultz (2009). "Effect of a small dose of alcohol on the endurance performance of trained cyclists". Alcohol and Alcoholism. 44 (3): 278–83. doi:10.1093/alcalc/agn108. PMID 19136497.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  16. ^ a b c Sutehall, Shaun; Muniz-Pardos, Borja; Bosch, Andrew N.; Di Gianfrancesco, Alessia; Pitsiladis, Yannis P. (April 2018). "Sports Drinks on the Edge of a New Era". Current Sports Medicine Reports. 17 (4): 112–116. doi:10.1249/JSR.0000000000000475. ISSN 1537-8918.
  17. ^ a b c Heckman, M.A.; Sherry, K.; De Mejia, E. Gonzalez (29 May 2010). "Energy Drinks: An Assessment of Their Market Size, Consumer Demographics, Ingredient Profile, Functionality, and Regulations in the United States". Comprehensive Reviews in Food Science and Food Safety. 9 (3): 303–317. doi:10.1111/j.1541-4337.2010.00111.x.
  18. ^ Jovanov, Pavle; Đorđić, Višnja; Obradović, Borislav; Barak, Otto; Pezo, Lato; Marić, Aleksandar; Sakač, Marijana (15 January 2019). "Prevalence, knowledge and attitudes towards using sports supplements among young athletes". Journal of the International Society of Sports Nutrition. 16 (1): 27. doi:10.1186/s12970-019-0294-7. PMC 6611041. PMID 31272457.{{cite journal}}: CS1 maint: unflagged free DOI (link)
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