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Archive > Year 2011, Number 1

Efficacy of pre exercise carbohydrate drink (Gatorade) on the recovery heart rate, blood lactate and glucose levels in short term intensive exercise



Nutrition is an important tool in the field of sports practice; once well oriented it may reduce fatigue, which allows the athlete to train longer or recover better between the training sessions. The aim of this study was to investigate the efficacy of a carbohydrate drink (Gatorade) on the recovery heart rate and blood lactate levels. 20 healthy men were recruited as subjects. Flavoured water or Gatorade was given randomly to the subjects 20 minutes prior to exercise. The subjects were made to exercise under Bruce treadmill protocol. The peak exercise heart rate and blood pressure were recorded, when the subjects underwent passive recovery in supine lying, and the recovery heart rate was recorded. The post exercise blood sample was analyzed for blood lactate and glucose concentrations. The same subject was followed up after 48 hours for the second trial. The findings of the study indicate statistically significant differences between Gatorade and Placebo drinks (p<0.05) in post exercise lactate (t=3.04) and glucose levels (t=3.52). Significant differences were also recorded in heart rates at the 3rd, 5th and 8th minutes of passive recovery with (F=4.47), (F=5.60) and (t=4.35) respectively. Gatorade increases performance by limiting lactate accumulation and improves cardiovascular responses by keeping a low heart rate thereby delaying the onset of fatigue.


Gatorade, Bruce treadmill protocol, recovery heart rate, blood lactate

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  1. Balmer, J., El-Sayed, E. I., & Rattu A., M. (1997). Carbohydrate ingestion improves endurance performance capacity during a 1 h stimulated cycling time trial. Journal of Sports Science 15(2), 223–230.
  2. Below, P. R., Mora-Rodriguez, R., Gonzalez-Alonso, J., & Coyle, E. F. (1995). Fluid and carbohydrate ingestion independently improve performance during 1 h of intense exercise. Medicine and Science in Sports and Exercise, 27, 200-210.
  3. Carter, J., Jeukendrup, A. E., Mundel, T., & Jones, D. A. (2003). Carbohydrate supplementation improves moderate and high-intensity exercise in the heat. Pflugers Archiv-European Journal of Physiology, 446, 211-219.
  4. Carter, J. M., Jeukendrup, A. E., & Jones, D. A. (2004). The effect of carbohydrate mouth-rinse on 1 h cycle time-trial performance. Medicine and Science in Sports and Exercise, 36, 2107-2111.
  5. Carter, J., Jeukendrup, A. E., & Jones, D. A. (2005). The effect of sweetness on the efficacy of carbohydrate supplementation during exercise in the heat. Canadian Journal of Applied Physiology, 30(4), 379-391.
  6. Chryssanthopoulos, C., Williams, C., Wilson, W., Asher, I., & Hearne, I. (1994). Comparison between carbohydrate feeding before and during exercise on running performance during a 30 km treadmill time trial. International Journal of Sports Nutrition, 4, 374–386.
  7. Coggan, A. R., & Coyle, E. F. (1987).Reversal of fatigue during prolonged exercise by carbohydrate infusion or ingestion. Journal of Applied Physiology, 63, 2388–2395.
  8. Coggan, A., & Coyle, E. (1989). Metabolism and performance following carbohydrate ingestion late in exercise. Medicine and Science in Sports and Exercise, 21, 59-65.
  9. Coyle, E. F., Hagberg, J. M., Hurley, B. F., Martin, W. H., & Ehansi, A. A. (1983). Carbohydrate feeding during prolonged exercise can delay fatigue. Journal of Applied Physiology, 55, 230–235.
  10. Danielson, A. R., Morris, L., Neiderhauser, L., Stanek, K., & Wolter, J. (2006). The physiological effects of water vs. Gatorade during prolonged exercise. Journal of Undergraduate Kinesiology Research, 1(1), 15-22.
  11. Davison, G. W., McClean, C., Brown, J., Madigan, S., Gamble, D., Trinick, T., & Duly, E. (2008). The effects of ingesting a carbohydrate electrolyte beverage 15 minutes prior to high-intensity exercise performance. Research in Sports Medicine, 16, 155-166.
  12. Febbraio, M. A., & Stewart, K. L. (1996). CHO feeding before prolonged exercise: effect of glycemic index on muscle glycogenolysis and exercise performance. Journal of Applied Physiology, 81, 1115-1120.
  13. Gleeson, M., Maughan, R. J., & Greenhalf, P. L. (1986). Comparison of the effects of pre exercise feeding of glucose, glycerol and placebo on endurance performance and fuel homeostasis in man. European Journal of Applied Physiology, 55, 645–653.
  14. Hamilton, M. T., Gonzales-Alonzo, J., Montain, J., & Coyle, E. F. (1991). Fluid replacement and glucose infusion during exercise prevent cardiovascular drift. Journal of Applied Physiology, 71, 871-877.
  15. Hargreaves, M. (1995). Exercise metabolism. Champaign, IL: Human Kinetics Publishers.
  16. Hargreeves, M., Dillo, P., Angus, D., & Febbraio, M. (1996). Effect of fluid ingestion on muscle metabolism during prolonged exercise. Journal of Applied Physiology, 80, 363-366.
  17. Hargreaves, M., Hawley, J. A., & Jeukendrup, A. E. (2000). Pre-exercise carbohydrate and fat ingestion: Effects on metabolism and performance. Journal of Sports Science, 22, 31–38.
  18. Hawley, J. A., Schabort, E. J., Noakes, T. D., & Dennis, S. C. (1997). Carbohydrate-loading and exercise performance: An update. Sports Medicine, 24, 73-81.
  19. Jeukendrup, A. E., Brouns, F., Wagenmakers, A. J. M., & Saris, W. H. M. (1997). Carbohydrate electrolyte feedings improve 1 h time trial cycling performance. International Journal of Sports Medicine, 18, 125-129.
  20. Jeukendrup, A. E. (2004). Carbohydrate intake during exercise and performance. Nutrition, 20, 669–677.
  21. Khanna, G. L., & Manna, I. (2005). Supplementary effects of carbohydrate-electrolyte drink on sports. Indian Journal of Medicine Research, 121(May), 665-669.
  22. Kirkendall, D. T., Foster, C., Dean, J. A., Grogan, J. & Thompson, N. (1989). Effects of glucose polymer supplementation on performance of soccer players. In Reilly, T., Less, A., Davies, K., Murphy, W.J. (Eds.) Science and Football, (p. 33-41), London: E & FN Spon.
  23. Kirwan, J. P., O’Gorman, D., & Evans, W. J. (1998). A moderate glycemic meal before endurance exercise can enhance performance. Journal of Applied Physiology, 84, 53–59.
  24. Leatt, P. B., & Jacobs, I. (1989). Effect of glucose polymer ingestion on glycogen depletion during a soccer match. Canadian Journal of Sport Sciences, 14, 112-116.
  25. Montain, S., & Coyle, E. (1992). Influence of graded dehydration on hyperthermia and cardiovascular drift during exercise. Journal of Applied Physiology, 73, 1340-1350.
  26. Ostojic, S. M., & Mazic, S. (2002). Effects of carbohydrate-electrolyte drink on specific soccer tests and performance. Journal of Sports Science and Medicine, 1, 47-53.
  27. Rajpreet, K., Kumar, R., & Sandhu, J. S. (2008) Effects of various warm up protocols on endurance and blood lactate concentrations. Serbian Journal of Sports Sciences, 2(4), 101-109.
  28. Murray, R., & Maughan, R. J. (2001). Sports drink: Basic Science and Practical Aspects. Boca Raton, FL: CRC Press.
  29. Sapata, K. B., Fayh, A. P. T., & Oliveira, A. R. (2006). Effect of prior consumption of carbohydrate on glycemia and performance. Revista Brasiliera de Medicine do Esporte, 12(4), 170–174.
  30. Shirreffs, S. M., & Merson, S. J. (2003). Exercise and motor skills performance and subjective feelings during exercise undertaken when drinking a carbohydrate electrolyte solution. In Muller, E., Schwameder, H., Zallinger, G., & Fastenbauer, V. (Eds.). 8th Annual Congress European College of Sports Science, Book of Abstracts. Salzburg, Austria.
  31. Shirreffs, M. S. (2003). The optimal sports drink. Sportmedizin und Sporttraumatologie, 51(1), 25–29.
  32. Stayton, B. (2009). The effect of pre exercise drinks on anaerobic endurance performance, (Cited from pdf.cgi/Stayton%20Ben.pdf?oduhonors1231698626)
  33. Tabata, I., Atomi, Y., & Miyashita, M (1984). Blood glucose concentration dependent ACTH and cortisol responses to prolonged exercise. Clinical Physiology, 4, 299-307.
  34. Tsintzas, O. K., Liu, R., Williams, C., Campbell, I., & Gastanous, G. (1993). The effects of carbohydrate ingestion on performance during a 30-km race. International Journal Sport Nutrition, 30, 127–139.
  35. Von Duvillard, S. P., Braun, W. A., Markofski, M., Beneke, R., & Leitha, R. (2004). Fluids and hydration in prolonged endurance performance. Nutrition, 20(7-8), 651-656.
  36. Wiber, R., & Moffatt, R. (1992). Influence of carbohydrate on blood glucose and performance in runners. International Journal Sport Nutrition, 4, 317–327.
  37. Wolinsky, I., & Hickson, Jr. (2002). Nutrição no exercício e no esporte. 2a ed. São Paulo: Roca.
  38. Wong, S. H., Williams, C., Simpson, M., & Ogaki, T (1998). Influence of fluid intake pattern on short term recovery from prolonged, sub maximal running and subsequent exercise capacity. Journal of Sports Sciences, 16, 143-152.