Sodium citrate ingestion increases glycolytic activity but does not enhance 2000 m rowing performance
Keywords:Sodium citrate, Alkalosis, Acid-Base, Fatigue, Rowing, Performance
Sodium citrate-induced alkalosis is an ergogenic strategy that has been proven to enhance physical performance in high-intensity exercises by increasing muscle buffer capacity and reducing the influence of H+ on energy production and contractile processes. The objective of the present study was to evaluate whether acute sodium citrate ingestion may contribute to rowing performance in a 2000-m race simulation. Six well-trained competitive rowers took part in the study, but five of them have completed the whole experimental protocol. They were assessed twice for performance and lactate 2.5 h after the ingestion of a 750-mL natural mango juice containing sodium citrate (0.5 g·kg-1) or no substance added (placebo). The two experiments occurred 7-15 days apart. The study was conducted in a double-blind, placebo-controlled, cross-over fashion. Performance was assessed in a rower ergometer and blood lactate was determined in both conditions at rest and after exercise. Heart-rate and oxygen consumption were monitored throughout the tests. Data were analyzed using the Wilcoxon's signed rank test. Sodium citrate yielded a significantly higher lactate response to exercise than placebo (p < 0.05), but no significant differences were found between treatments for performance, heart-rate and oxygen consumption. In conclusion, sodium citrate promoted a favorable metabolic environment for exercise performance but did not exert any influence on simulated rowing performance.
Artioli, G.G., Gualano, B., Coelho, D.F., Benatti, F.B., Gailey, A.W., Lancha, A.H. Does sodium-bicarbonate ingestion improve simulated judo performance? Int J Sport Nutr Exerc Metab. 2007; 17(2):206-17. https://doi.org/10.1123/ijsnem.17.2.206
Ball, D., Maughan, R.J. The effect of sodium citrate ingestion on the metabolic response to intense exercise following diet manipulation in man. Exp Physiol. 1997; 82(6):1041-56. https://doi.org/10.1113/expphysiol.1997.sp004079
Berger, N.J., Mcnaughton, L.R., Keatley, S., Wilkerson, D.P., Jones, A.M. Sodium bicarbonate ingestion alters the slow but not the fast phase of VO2 kinetics. Med Sci Sports Exerc. 2006; 38(11):1909-17. https://doi.org/10.1249/01.mss.0000233791.85916.33
Bishop, D., Edge, J., Davis, C., Goodman, C. Induced metabolic alkalosis affects muscle metabolism and repeated-sprint ability. Med Sci Sports Exerc. 2004; 36(5):807-13. https://doi.org/10.1249/01.MSS.0000126392.20025.17
Bouissou, P., Defer, G., Guezennec, C.Y., Estrade, P.Y., Serrurier, B. Metabolic and blood catecholamine responses to exercise during alkalosis. Med Sci Sports Exerc. 1988; 20(3):228-32. https://doi.org/10.1249/00005768-198806000-00003
Bracken, R.M., Linnane, D.M., Brooks, S. Alkalosis and the plasma catecholamine response to high-intensity exercise in man. Med Sci Sports Exerc. 2005; 37(2):227-33. https://doi.org/10.1249/01.MSS.0000152704.34531.B6
Cox, G., Jenkins, D.G. The physiological and ventilatory responses to repeated 60 s sprints following sodium citrate ingestion. J Sports Sci. 1994; 12(5):469-75. https://doi.org/10.1080/02640419408732197
De Campos Mello, F., De Moraes Bertuzzi, R.C., Grangeiro, P.M., Franchini, E. Energy systems contributions in 2,000 m race simulation: a comparison among rowing ergometers and water. Eur J Appl Physiol. 2009; 107(5):615-9. https://doi.org/10.1007/s00421-009-1172-9
Hagerman, F.C., Connors, M.C., Gault, J.A., Hagerman, G.R., Polinski, W.J. Energy expenditure during simulated rowing. J Appl Physiol. 1978; 45(1):87-93.
Hagerman, F.C. Physiology of Competitive Rowing. In: Jr WE Garret and DT Kirkendall (Eds.). Exercise and Sport Science. Philadelphia: Lippincott Williams & Wilkins; 2000.
Horswill, C.A. Effects of bicarbonate, citrate, and phosphate loading on performance. Int J Sport Nutr. 1995; 5 Suppl: S111-9. https://doi.org/10.1123/ijsn.5.s1.s111
Kozak-Collins, K., Burke, E.R., Schoene, R.B. Sodium bicarbonate ingestion does not improve performance in women cyclists. Med Sci Sports Exerc. 1994; 26(12):1510-5. https://doi.org/10.1249/00005768-199412000-00015
Mcnaughton, L., Cedaro, R. Sodium citrate ingestion and its effects on maximal anaerobic exercise of different durations. Eur J Appl Physiol Occup Physiol. 1992; 64(1):36-41. https://doi.org/10.1007/BF00376437
Mcnaughton, L.R., Siegler, J., Midgley, A. Ergogenic effects of sodium bicarbonate. Curr Sports Med Rep. 2008; 7(4):230-6. https://doi.org/10.1249/JSR.0b013e31817ef530
Mcnaughton, L.R. Sodium bicarbonate ingestion and its effects on anaerobic exercise of various durations. J Sports Sci. 1992; 10(5):425-35. https://doi.org/10.1080/02640419208729941
Mcnaughton, L.R. Sodium citrate and anaerobic performance: implications of dosage. Eur J Appl Physiol Occup Physiol. 1990; 61(5-6):392-7. https://doi.org/10.1007/BF00236058
Mickelson, T.C., Hagerman, F.C. Anaerobic threshold measurements of elite oarsmen. Med Sci Sports Exerc. 1982; 14(6):440-4. https://doi.org/10.1249/00005768-198206000-00006
Potteiger, J.A., Nickel, G.L., Webster, M.J., Haub, M.D., Palmer, R.J. Sodium citrate ingestion enhances 30 km cycling performance. Int J Sports Med. 1996; 17(1):7-11. https://doi.org/10.1055/s-2007-972800
Pripstein, L.P., Rhodes, E.C., Mckenzie, D.C., Coutts, K.D. Aerobic and anaerobic energy during a 2-km race simulation in female rowers. Eur J Appl Physiol Occup Physiol. 1999; 79(6):491-4. https://doi.org/10.1007/s004210050542
Raymer, G.H., Marsh, G.D., Kowalchuk, J.M., Thompson, R.T. Metabolic effects of induced alkalosis during progressive forearm exercise to fatigue. J Appl Physiol. 2004; 96(6):2050-6. https://doi.org/10.1152/japplphysiol.01261.2003
Requena, B., Zabala, M., Padial, P., Feriche, B. Sodium bicarbonate and sodium citrate: ergogenic aids? J Strength Cond Res. 2005; 19(1):213-24. https://doi.org/10.1519/00124278-200502000-00036
Russell, A.P., Le Rossignol, P.F., Sparrow, W.A. Prediction of elite schoolboy 2000m rowing ergometer performance from metabolic, anthropometric and strength variables. J Sports Sci. 1998; 16(8):749-54. https://doi.org/10.1080/026404198366380
Siegler, J.C., Hirscher, K. Sodium bicarbonate ingestion and boxing performance. J Strength Cond Res. 2010; 24(1):103-8. https://doi.org/10.1519/JSC.0b013e3181a392b2
Stephens, T.J., Mckenna, M.J., Canny, B.J., Snow, R.J., Mcconell, G.K. Effect of sodium bicarbonate on muscle metabolism during intense endurance cycling. Med Sci Sports Exerc. 2002; 34(4):614-21.
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