American Journal of Sports Science and Medicine
ISSN (Print): 2333-4592 ISSN (Online): 2333-4606 Website: http://www.sciepub.com/journal/ajssm Editor-in-chief: Ratko Pavlović
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American Journal of Sports Science and Medicine. 2015, 3(2), 39-46
DOI: 10.12691/ajssm-3-2-3
Open AccessArticle

Effectiveness of Commercial versus Homemade Sports Drinks on Fluid Balance and Exercise Capacity during High-intensity Intermittent Exercise

Gulshanara Begum1, Maria Konstantaki2, , Adam Cunliffe3 and Michael Leveritt4

1Department of Life Sciences, University of Westminster, London, United Kingdom

2Department of Sports Management, Buckinghamshire New University, High Wycombe, United Kingdom

3Department of Applied Science, London South Bank University, London, United Kingdom

4School of Human Movement Studies, The University of Queensland, Australia

Pub. Date: May 08, 2015

Cite this paper:
Gulshanara Begum, Maria Konstantaki, Adam Cunliffe and Michael Leveritt. Effectiveness of Commercial versus Homemade Sports Drinks on Fluid Balance and Exercise Capacity during High-intensity Intermittent Exercise. American Journal of Sports Science and Medicine. 2015; 3(2):39-46. doi: 10.12691/ajssm-3-2-3

Abstract

Commercial sports drinks are used widely by athletes involved in high-intensity intermittent (HII) exercise. However, little has been reported on their relative effectiveness compared to simple homemade drink formulations. The purpose of this study was to investigate the effects of different sports drink formulations (commercial v homemade), water and no drink on fluid balance and exercise capacity during HII exercise. Twelve trained men (age: 27 ± 2.1 y) performed a 90-min HII running protocol designed to simulate activity experienced during a football match. The protocol was arranged in six 15-min stages where running speeds ranged between 55% and 120% of VO2max. The HII protocol included half-time and a run to fatigue post 90 min. Using a single-blind, randomized, cross-over design, participants ingested a preload of 5 ml•kg-1 10 min before HII exercise and 3 ml•kg-1 every 15 min of either Isostar® (ISO), a homemade sports drink (CHO), placebo (P) or no drink (ND). Blood lactate (Hla), blood glucose (Bgluc), heart rate (HR) and ratings of perceived exertion (RPE) were measured before, during (every 15 min) and after the 90-min HII protocol. Changes in plasma volume were measured at half-time and post 90 min. Sweat rate and fluid balance were calculated post each trial. Time to fatigue (TTF) was recorded at exhaustion. In the ND trial, TTF decreased by approximately 17%, 28% and 43% compared to P, CHO and ISO, respectively (p<0.01) and HR was highest at 90 min following ND trial (p<0.05). TTF was 20% longer in the ISO trial compared to CHO, but this difference was not statistically significant (p>0.05). No differences were noted in HLa, RPE, PV or SR between the trials (p>0.05) but there were significant effects of time (p<0.05). Bgluc peaked at 30 minutes in ISO and CHO, but dropped by ~27% in ISO and by ~30% in CHO after half time. Absence of fluid ingestion surprisingly had no significant effect on altering plasma volume or decreasing sweat rate despite causing noticeable decreases in exercise capacity. The homemade drink improved exercise capacity in a similar manner to that of the commercial drink, but neither sports drink achieved superior hydration compared to water. Ingestion of exogenous carbohydrate through sports drink consumption caused an exercise-induced glycemic response when exercise was restarted after half-time. This decline in blood glucose after half-time appears to be marginally attenuated in P trial. A possible suggestion for team sports could be to drink water rather than sports drink prior to half-time period.

Keywords:
advanced v basic formulation sports drinks exercise capacity hydration status high-intensity intermittent exercise

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]  Jeukendrup A.E, Killer, S.C. “The myths surrounding pre-exercise carbohydrate feeding,” Annals of Nutrition and Metabolism, 57 (2), 18-25, 2010.
 
[2]  Shirreffs, S. “The optimal sports drink,” Schweizerische Zeitschrift für «Sportmedizin und Sporttraumatologie, 51, 25-29, 2003.
 
[3]  Febbraio, M.A., Chiu, A., Angus, D.J, Arkinstall, M.J., Hawley, J.A. “Effects of carbohydrate ingestion before and during exercise on glucose kinetics and performance,” Journal of Applied Physiology, 89, 2220-226, 2000a.
 
[4]  Coso, J., Estevez, E., Baquero, R., Mora-Rodriguez, R. “Anaerobic performance when rehydrating with water or commercially available sports drinks during prolonged exercise in the heat,” Applied Physiology, Nutrition and Metabolism, 33, 290-298, 2008.
 
[5]  Nicholas, C.W, Tsintzas, K., Boobis, L., Williams, C. “Carbohydrate-electrolyte ingestion during intermittent high-intensity running,” Medicine and Science in Sports and Exercise, 31(9), 1280-6, 1999.
 
[6]  Coombes, J. “Review article: Sport drinks and dental,” American Journal of Dentistry, 18, 101-04, 2005
 
[7]  Mettler, S., Rusch, C., Colombani, P. “Osmolality and pH of sports and other drinks available in Switzerland,” Schweizerische Zeitschrift für «Sportmedizin und Sporttraumatologie» 54, 92-95, 2006.
 
[8]  Bateman, B., Warner, J.O., Hutchison, E., Dean, T., Rowlandson, P., Gant, C., Grundy, J., Fitzgerald, C., Stevenson, J. “The effects of a double blind, placebo controlled, artificial food colourings and benzoate preservative challenge on hyperactivity in a general population sample of preschool children,” Archives of Disease in Childhood, 89, 506-511, 2004.
 
[9]  Earnest, C.P., Lancaster, S.L., Rasmussen, C.J., Kerksick, C.M., Alejandro, A., Greenwood, M.C., Almada, A.L., Cowan, P.A., Kreider, R.B. “Low vs high carbohydrate gel ingestion during simulated 64 km cycling time trial performance,” Journal of Strength and Conditioning Research, 18(3), 466-472, 2004.
 
[10]  Convertino, V., Armstrong, L., Coyle, E., Mack, G.W., Sawka, M.N., Senay, L.C., Sherman, W.M. “American College of Sports Medicine position stand: exercise and fluid replacement,” Medicine and Science in Sports and Exercise, 28, i-vii, 1996.
 
[11]  Chryssanthopoulos, C., Williams, C., Nowitz, A. “Influence of a carbohydrate-electrolyte solution ingested during running on muscle glycogen utilisation in fed humans,” International Journal of Sports Medicine, 23, 279-284, 2002.
 
[12]  Sawka, M.N., Burke, L.M., Eichner, R., Maughan, R.J., Montain, S.J., Stachenfeld, N.S. “Exercise and fluid replacement,” American College of Sports Medicine (ACSM) Position Stand, Medicine and Science in Sports and Exercise, 39(2), 377-390, 2007.
 
[13]  Coyle, E.F. “Fluid and fuel intake during exercise,” Journal of Sports Sciences, 22, 39-55, 2004.
 
[14]  Fritzsche, R.G, Switzer, T.W, Hodgkinson, B.J, Lee, S-H., Martin, J.C., Coyle, E.F. “Water and carbohydrate ingestion during prolonged exercise increase maximal neuromuscular power,” Journal of Applied Physiology, 88, 730-737, 2000.
 
[15]  Kreider, R.B., Wilborn, C.D., Taylor, L., Campbell, B., Almada, A.L., Collins, R., Cooke, M., Earnest, C.P., Greenwood, M., Kalman, D.S., Kerksick, C.M., Kleiner, S.M., Leutholtz, B., Lopez, H., Lowery, L.M., Mendel, R., Smith, A., Spano, M., Wildman, R., Willoughby, D.S., Ziegenfuss, T.N., Antonio, J. “International Society of Sport Nutrition, exercise and sport nutrition review: research and recommendations,” Journal of the International Society of Sports Nutrition, 7(7), 1-43, 2010.
 
[16]  Hill, R., Bluck, L., Davies, P. “The hydration ability of three commercially available sports drinks and water,” Journal of Science and Medicine in Sport, 11, 116-123, 2008.
 
[17]  Bergeron, M., Waller, J., Marinik, E. “Voluntary fluid intake and core temperature responses in adolescent tennis players: sports beverage versus water,” British Journal of Sports Medicine, 40, 406-410, 2006.
 
[18]  DaSilva, R.P., Mundel, T., Natali, A.J., Bara Filho, M.G., Alfenas, R.C., Lima, J.R., Belfort, F.G., Lopes, P.R., Marins, J.C. “Pregame hydration status, sweat loss and fluid intake in elite Brazilian soccer male players during competition,” Journal of Sports Sciences, 30 (1): 37-42, 2012.
 
[19]  Roffey, D.M., Byrne, N.M., Hills, A.P. “Effect of stage duration on physiological variables commonly used to determine maximum aerobic performance during cycle ergometry,” Journal of Sports Sciences, 25(12), 1325-35, 2007.
 
[20]  Welsh, R.S., Davis, M.J., Burke, J.R., Williams, H.G. “Carbohydrates and physical/mental capacity during intermittent exercise to fatigue,” Medicine and Science in Sports and Exercise, 34, 723-731, 2002.
 
[21]  Nicholas, C.W., Williams, C., Lakomy, H.K., Phillips, G., Nowitz, A. “Influence of ingesting a carbohydrate-electrolyte solution on endurance capacity during intermittent, high-intensity shuttle running,” Journal of Sports Sciences, 13, 283-290, 1995.
 
[22]  Jones, A.M., Doust, J.H. “A 1% treadmill grade most accurately reflects the energetic cost of outdoor running,” Journal of Sports Sciences. 14(4), 321-327. 1996.
 
[23]  Potgieter, S. “Sport nutrition: a review of the latest guidelines for exercise and sport nutrition from the American College of Sport Nutrition, the International Olympic Committee and the International Society for Sports Nutrition,” South African Journal of Clinical Nutrition, 26 (1), 6-16, 2013.
 
[24]  Rodriguez, N.R., DiMarco, N.M., Langley, S. “Nutrition for athletic performance. Joint position statement of the American College of Sports Medicine, the American Dietetic Association and the Dieticians of Canada,” Medicine and Science in Sports and Exercise, 44(3): 709-731, 2009.
 
[25]  Dill, D., Costill, D.L. “Calculation of percentage changes in volumes of blood, plasma, and red cells in dehydration,” Journal of Applied Physiology, 37, 247-248, 1974.
 
[26]  Minehan, M.R., Riley, M.D., Burke, L.M. "Effect of flavour and awareness of kilojoule content of drinks on preference," International Journal of Sport Nutrition and Exercise Metabolism, 12 (2002): 81-92.
 
[27]  Fallowfield, J.L., Williams, C., Booth, J., Choo, B.H., Growns, S. “Effect of water ingestion on endurance capacity during prolonged running,” Journal of Sports Sciences, 14, 497-502, 1996.
 
[28]  Hargreaves, M., Dillom P., Angusm D., Febbraio, M. “Effect of fluid ingestion on muscle metabolism during prolonged exercise,” Journal of Applied Physiology, 80, 363-366, 1996.
 
[29]  Coombes, J., Hamilton, K. “The effectiveness of commercially available sports drinks,” Sports Medicine, 29, 181-209, 2000.
 
[30]  Currell, K., Jeukendrup, A. “Superior performance with ingestion of multiple transportable carbohydrates,” Medicine and Science in Sports and Exercise, 40, 275-281, 2008.
 
[31]  Davis, J.M., Welsh, R.S., De Volve, K.L., Anderson, N.A. “Effects of branched chain amino acids and carbohydrate on fatigue during intermittent, high intensity exercise,” International Journal of Sports Medicine, 20, 419-428, 1999.
 
[32]  Passe, D., Horn, M., Murray, R. “Impact of beverage acceptability on fluid intake during exercise,” Appetite, 35, 219-229, 2000.
 
[33]  Montain, S., Coyle, E.F. “Influence of graded dehydration on hyperthermia and cardiovascular drift during exercise,” Journal of Applied Physiology, 73, 1340-1350, 1992.
 
[34]  Walsh, R.M., Noakes, T.D., Hawley, J.A., Dennis, S.C. “Impaired high-intensity cycling capacity time at low levels of dehydration,” International Journal of Sports Medicine, 15, 392-398, 1994.
 
[35]  Leiper, J., Broad, N., Maughan, R. “Effect of intermittent high-intensity exercise on gastric emptying in man,” Medicine and Science in Sports and Exercise, 33 (8), 1270-1278, 2001.
 
[36]  Maughan RJ, Shirreffs SM, Leiper JB. Errors in the estimation of hydration status from changes in body mass. Journal of Sports Sciences, 25 (7), 797-804, 2007.
 
[37]  Costill, D.L., Fink, W. “Plasma volume changes following exercise and thermal dehydration,” Journal of Applied Physiology, 37, 521-26, 1974.
 
[38]  Russell M, Benton D, Kingsley M. Influence of carbohydrate supplementation on skill performance during a soccer match simulation. Journal of Science and Medicine in Sport, 15, 348-354, 2012.