INFLUENCIA DE LA DESHIDRATACIÓN AGUDA SOBRE EL COMPORTAMIENTO DE LA FRECUENCIA CARDIACA, EL CONSUMO DE OXÍGENO, EL LACTATO SANGUÍNEO Y EL PESO CORPORAL EN CORREDORES DE FONDO

Autores/as

  • Rafael Caldas Z Docente Universitario

Resumen


With the purpose to determine differences among the heart rate (HR), plasmatic lactate (LAC) and oxygen consumption (V02) during a period of 90 minutes of running on a motorized treadmill (Quinton 1486) at 9,5 mph of speed and 1 % constant slope under conditions of hydration (H YD) and dehydration (DH YD), seven long distance male runners were studied. The laboratory conditions were 25 Celsius degrees, 65 % relative humidity and 1500 m above sea level. Each athlete were weighted at the beginning and at the finish of the running period. The first trial was made without drinking any kind of beverage and the second trial, seven days later, was made by drinking 150 ml of water each 15 minutes. Blood samples were withdrawn from the earlobe to determine LAC and the HR and VO2. (Ergooxiscreen Jaeger) were registered simultaneously. The results indicated a significative difference between HYD and NHYD treatments specially in LAC and HR. These parameters were higher in NHYD in a progressive way approximately increasing from minute 30. VO2 did not change significatively. Body weight deficit were higher in NHYD ranging from 1,7 to 3,9 % and HYD registered a lower déficit (0,5 to 2,4 %). The variation coefficients indicated a wide individual variation confirming previous reponed results. Also a negati ve influence of dehydration status on phy sical performance is demostrated but depending on a wide range on individual variations.

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Biografía del autor/a

Rafael Caldas Z, Docente Universitario

Biólogo. División de medicina deportiva, Coldeportes Antioquia. Catedrático del Instituto de educación física y de la Facultad de medicina de la Universidad de Antioquia.

Citas

1. B. Bathovel., M. Fellenius., M, Gissinger. V. Candas. "Physiological Effects of Dehydration and Rehydration with Water and Acidic or Neutral Carbohydrate Electrolyte Solutions". En: Eur J Appl Physiol. 60:209-216, 1990.

2. B. Saltin. "Aerobic and Anaerobic Work capacity after Dehydration". En: J Appl Physiol. 19(6): 1114-1118, 1964.

3. W.G. Herbert. Water and Electrolytes". En: Ergogenic Aids in Sports. Williams M.H. (Ed), Human Kinetics, Champaing III, pp: 57-98, 1983.

4. D.L. Costill., R. Cote., W. Fink. "Muscle Water and Electrolytes following varied Levels of Dehydration in Man". En: J Appl Physiol. 40(3):404-410, 1976.

5. P.O. Astrand., B. Saltin. "Plasma and Red Cell©Volume after Prolonged Severe Exercise". En: J Appl Physiol. 19(59:829-832, 1964.

6. E.R. Nadel., S.M Fortney., C.B. Wenger. "Effect of Hydration State on Circulatory and Thermal Regulation". En: J Appl Physiol. 49(4):715-721, 1980.

7. M.N. Sawka., R.P. Francesconi., A.J. Young., K.B. Pandolf. "Influence of hydration Level AndBodyFluidsonExercisePerfomance in the Heat". En: Jama. 252(9):1165-1169, 1984.

8. M.N. Sawka., R.P. Francesconi. A.J. Young., S .R. Muza., K.B. Pandolf. "Thermoregulatory and Blood Responses during Exercise at Graded Hypohydration Levels". En: J Appl Physiol. 56:1394-1401, 1985.

9. I. Jacobs. "Effects of Thermal Dehydration on Perfomance on the Wingate Anaerobic Test". En: Int J Sports Med. l (l):21-24, 1980.

10. U.H. Wanner. "Physical Perfomance as aFunction of Liquid Intake". En: Exercise and Sport Biology. International Series on Sport Science. Komi P. V., Nelson R.C., Morehouse Ch.A. (Eds). Human Kinetics Publishers. Champaign III, 1982.

11. L. Rocker., K.A. Kirsh., B. Heydack., H.U. Alterkirch. "Influence of Prolonged Physical Exercise on Plasma Volume. Plasma Proteins, Electrolytes and Fluid Regulating Hormones". En: Int J Sports Med. 10(4): 270-274, 1989.

12. J.R. Sutton., P.A. Farrel., V.J. Harber. "Hormonal Adaptations to Physical Activity". En: Exercise, Fitness and Health. Bouchard C. y col. (Eds). Human Kinetics Books. Champaign III. 1990.

13. D.R. Dengel., P.G. Weyand., D.M. Black., K.J. Cureton. "Effects of Varying Levels of Hypohydration on Ratings of Perceived Exertion". En: Int J Sport Nutrition. 3:376-386,1993.

14. W. Kindermann., M. Schramm., J Keul. "Aerobic Perfomance Diagnostics with Different Experimental Settings". En: Int J Sports Med. 1(1):110-114,1984.

15. F.N. Craig., E.G. Cummings. "Dehydration and Muscular Work". En: / Appl Physiol. 21(2):670-674, 1966.

16. E. Baum., K Briick., H.P. Schwennicke. "Adaptative Modifications in the Thermoregulatory System of Longdistance Runners". En: J Appl Physiol. 40(3):404- 410,1976.

17. Armstrong L.E., Costill D.L., Fink W.J. Influence of Diuretic induced Dehydration on Competitive Running Performance. Med Sci Sports Exerc 17:456-461, 1985.

18. Sawka M.N. Physiological Consequences of Hypohydration: Exercise Performance and Thermoregulation. Med Sci Sports Exerc. 24(6):657-670, 1992.

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Publicado

2010-01-25

Cómo citar

Caldas Z, R. (2010). INFLUENCIA DE LA DESHIDRATACIÓN AGUDA SOBRE EL COMPORTAMIENTO DE LA FRECUENCIA CARDIACA, EL CONSUMO DE OXÍGENO, EL LACTATO SANGUÍNEO Y EL PESO CORPORAL EN CORREDORES DE FONDO. Educación Física Y Deporte, 16(1), 59–70. Recuperado a partir de https://revistas.udea.edu.co/index.php/educacionfisicaydeporte/article/view/4603

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Artículos de Investigación