Asker Jeukendrup

Nombre Completo: Asker Jeukendrup. Dirección Postal: No Disponible. Teléfono: +44 (0)121 414 4124. Dirección de Correo Electrónico: A.E.Jeukendrup@bham.ac.uk

  Publicaciones en PubliCE

• Senior Lecturer in Exercise Biochemistry and Academic Director of the Human Performance Laboratory
• MSc (Maastricht, The Netherlands) PhD (Maastricht, The Netherlands)

INTERESES DE INVESTIGACIÓN

• Fat metabolism during exercise
• Carbohydrate metabolism during exercise
• The interaction between carbohydrate and fat metabolism
• Biochemical adaptations to training
• Overtraining
• Ergogenic effects of nutrition supplements

Following an M.Sc. in Human Movement Sciences at Maastricht University in the Netherlands he was awarded a Ph.D. in 1997 at the same University. His research focused on aspects of carbohydrate and fat metabolism during exercise. In 1997 he spent a year at the department of Kinesiology and Health Education at the University of Texas at Austin in the USA as a post doc studying the effects of diet- exercise interventions. He returned to Maastricht for another post doc period of 6 months. In July 1998 he started as a Lecturer and is now Senior Lecturer in Exercise Biochemistry at the School of Sport and Exercise Sciences at the University of Birmingham. Asker is the Academic Director of the Human Performance Laboratory and manages the research in this lab for the School of Sport and Exercise Sciences.

His research interests include the metabolic responses to exercise, regulation of carbohydrate and fat metabolism, sports nutrition, gastro-intestinal complaints during exercise, training and overtraining and he has published over 70 journal articles and book chapters. He is a Fellow of the American College of Sports Medicine, member of the New York Academy of Sciences, the Nutrition Society, the Physiological Society, the Biochemical Society, the American Diabetes Association and the European College of Sport Sciences. Asker is also as as a reviewer for 17 different peer reviewed journals.

In addition to this Asker is also training and nutrition consultant to several top athletes in Europe, UK Athletics and to the Rabobank professional cycling team. Recently Asker published a book called High Performance Cycling. In his spare time Asker tries to manage his training for a Ironman distance triathlon (see Sports).

PUBLICACIONES

• O = Investigación Original
• R = Revisión

1. Achten J. and A.E. Jeukendrup. Relation between lactate concentration and fat oxidation over a wide range of intensities. International Journal of Sports Medicine In Press 2004. O
2. Moseley, L., J. Achten, J. Martin and A.E. Jeukendrup. No differences in cycling efficiency between world-class and recreational cyclists In press International Journal of Sports Medicine 2004. O
3. Achten, J., S.L.Halson, L.Moseley, M.P.Rayson, A.C.Casey, and A.E. Jeukendrup. Higher dietary carbohydrate content during intensified running training results in better mnaintenance of performance and mood state. Journal of Applied Physiology 10.1152/japplphysiol.00973. 2003 O
4. Jentjens, R.L.P.G., L. Moseley, R.H. Waring, L.K. Harding, and A.E. Jeukendrup Oxidation of combined ingestion of glucose and fructose during exercise. Journal of Applied Physiology DOI, 10.1152/japplphysiol.00974.2003. O
5. Jentjens, R.L.P.G., J. Achten, and A.E. Jeukendrup. High rates of exogenous carbohydrate oxidation from multiple transportable carbohydrates ingested during prolonged exercise. Journal of Applied Physiology DOI, 10.1152/japplphysiol.01023.2003. O
6. Hargreaves, M., J.A.Hawley and A.E.Jeukendrup. Pre-exercise carbohydrate and fat ingestion: effects on metabolism and performance. Journal of Sports Sciences 22: 31-38, 2003. R
7. Achten, J., D.Sutedja, J.Hohnson, A E. Jeukendrup, D.Jones and E. Elias. Effect of endurance training on liver function in patients with non-alcoholic steato hepatitis. European Journal of Sport Science 2003. O
8. Jeukendrup, A.E., Modulation of carbohydrate and fat utilization by diet, exercise and environment. Biochemical Society Transactions, 31(6): 1270- 2003. R
9. Achten J. and A.E. Jeukendrup. Maximal fat oxidation during exercise in trained men. International Journal of Sports Medicine 24 (8): 603-608, 2003. O
10. Jeukendrup A.E., D.T.Martin Gore, C.J. Letter to the editor: Are world-class cyclists really more efficient? Medicine and Science in Sports and Exercise 35 (7):1238-1239, 2003.
11. Saris, W.H.M., J.-M. Antoine, F. Brouns, M. Fogelholm, M. Gleeson, P.Hespel, A.E. Jeukendrup, R.J.Maughan, and V. Stich. Selection of methodology for the assessment of support for foods related to physical performance and fitness. European Journal of Nutrition 42 (Suppl 1):150-195, 2003. R
12. Achten J. and A.E. Jeukendrup. Fat oxidation is higher during running compared to cycling over a wide range of intensities. Metabolism, 52(6):747-52, 2003. O
13. Lancaster, G., R.L.P.G. Jentjens, L. Moseley, A.E. Jeukendrup, and M. Gleeson. Effect of pre-exercise carbohydrate ingestion on plasma cytokine, stress hormone and neutrophil degranulation responses to continuous, high intensity exercise. International Journal of Sport Nutrition and Exercise Metabolism 13: 436-453, 2003. O
14. Jeukendrup, A.E., R.L.P.G. Jentjens L. Moseley Nutritional considerations in triathlon Sports Medicine In press 2004 R
15. Atkinson G., R. Davison, A.E. Jeukendrup and L. Passfield Science and cycling: current knowledge and future directions for research. Journal of Sports Sciences 21(9): 767-787, 2003 R
16. Achten J and A.E. Jeukendrup. The effect of pre-exercise carbohydrate feeding on the intensity which elicits maximal fat oxidation. Journal of Sports Sciences 24(8):603-608, 2003 O
17. Achten, J. and A.E.Jeukendrup. Heart rate monitoring and exercise. Developments, applications and limitations. Sports Medicine 33 (7):517-38, 2003. R
18. Jentjens, L.P.G., and A.E. Jeukendrup. Glycogen resynthesis after exercise Sports Medicine 33 (2):117-144, 2003. R
19. Carter, J., A.E.Jeukendrup and D.A. Jones. CHO supplementation improves moderate and high intensity exercise in the heat. Pfluegers Archives- European Journal of Physiology 446(2): 211-219, 2003. O
20. Halson, S.L., G.I. Lancaster, A.E. Jeukendrup and M. Gleeson. Immunological responses to overreaching in cyclists. Medicine and Science in Sports and Exercise 35(5): 854-861, 2003. O
21. Achten, J., and A.E. Jeukendrup Effects of pre-exercise ingestion of carbohydrate on glycaemic and insulinaemic responses during subsequent exercise at differing intensities European Journal of Applied Physiology 88(4-5): 466-471, 2003. O
22. Moseley, L., G. I. Lancaster, and A.E. Jeukendrup. Effects of timing of pre-exercise ingestion of carbohydrate on subsequent metabolism and cycling performance European Journal of Applied Physiology 88(4-5): 459-465, 2003. O
23. Jentjens, L.P.G., and A.E. Jeukendrup. Effects of pre-exercise ingestion of trehalose, galactose and glucose on subsequent metabolism and cycling performance European Journal of Applied Physiology 88(4-5): 453-458, 2003. O
24. Jentjens, L.P.G., C. Cale, C. Gutch, and A.E. Jeukendrup. Effects of pre-exercise ingestion of different amounts of carbohydrate on subsequent metabolism and cycling performance European Journal of Applied Physiology 88(4-5): 444-452, 2003. O
25. Brouns, F, M. van Nieuwenhoven, M., A.E. Jeukendrup, and W van Marken-Lichtenbelt. Functional Foods and Food Supplements for Athletes: from Myths to Benefit Claims Substantiation through the study of selected biomarkers. British Journal of Nutrition 88 (Suppl 2): S177-S186, 2002 O
26. Halson, S., M. Bridge, B. Busschaert, R. Meeusen, M.Gleeson, D.A. Jones and A.E. Jeukendrup. Time course of performance changes and markers of fatigue in response to intensified training in cyclists Journal of Applied Physiology 93: 947-956, 2002. O
27. Jeukendrup A.E. Regulation of skeletal muscle lipid metabolism at rest and during exercise Annals of the New York Academy of Sciences 967: 217-235, 2002. R
28. Jentjens, L.P.G. and A.E. Jeukendrup. Prevalence of hypoglycemia following pre-exercise carbohydrate ingestion is not accompanied by higher insulin sensitivity. International Journal of Sport Nutrition and Exercise Metabolism 12: 444-459, 2002 O
29. Jentjens, L.P.G. and A.E. Jeukendrup. Effect of acute and short-term administration of vanadyl sulphate on insulin sensitivity in healthy active humans. International Journal of Sport Nutrition and Exercise Metabolism 12: 434-443, 2002 O
30. Jentjens, L.P.G., A.J.M. Wagenmakers, and A.E. Jeukendrup. Heat stress increases muscle glycogen oxidation but reduces oxidation of ingested carbohydrates during prolonged exercise Journal of Applied Physiology 92(4):1562-72, 2002. O
31. Carter, J. and A.E. Jeukendrup Validity and reliability of three breath-by-breath respiratory systems European Journal of Applied Physiology 86(5):435-441, 2002. O
32. Achten, J. M. Gleeson and A.E.Jeukendrup. Determination of the exercise intensity that elicits maximal fat oxidation . Medicine and Science in Sports and Exercise 34 (1), 92-97, 2002. O
33. Jeukendrup, A.E. and J. Achten Short review: Fatmax, a new concept to optimize fat oxidation during exercise?European Journal of Sports Sciences 1(5): 1-5, 2001.
34. Bastiaans, J.J., A.B.J.P. van Diemen, T. Veneberg and A.E.Jeukendrup. The effects of replacing a portion of endurance training by explosive strength training on performance in trained cyclists. European Journal of Applied Physiology. 86: 79-84, 2001. O
35. Jentjens, L.P.G., L.J.C. van Loon, C.H. Mann, A.J.M. Wagenmakers, and A.E. Jeukendrup. Addition of protein and amino acids to carbohydrates does not enhance postexercise muscle glycogen synthesis. Journal of Applied Physiology 91: 839-46, 2001. O
36. Romer, L.M., J. Barrington, and A.E.Jeukendrup. Effect of creatine on high intensity intermittent exercise performance in squash players. International Journal of Sports Medicine. 22: 546-552, 2001. O
37. Moseley L. and A.E. Jeukendrup The reliability of cycling efficiency. Medicine and Science in Sports and Exercise 33(4):621-627, 2001. O
38. Coyle, E.F. A.E. Jeukendrup, M. C. Oseto, B.J. Hodgkinson and T.W. Zderic. A chronic low fat diet alters intramuscular substrates and reduces lipolysis and fat oxidation during exercise. American Journal of Physiology Endocrinology and Metabolism 280 (3): E391-3998, 2001. O
39. Jeukendrup, A.E. and J. Martin. Improving cycling performance: how should we spend our time and money? Sports Medicine (Suppl) 31(7): 559-569. 2000. R
40. Jeukendrup, A.E. , N. Craig and J. Hawley. Physiological demands of World Class Cycling. Journal of Science and Medicine in Sport 3(4): 400-419, 2000 R
41. Jeukendrup, A.E. and L.P.G. Jentjens Efficacy of carbohydrate feedings during prolonged exercise: current thoughts, guidelines and directions for future research. Sports Medicine 29(6): 407-424, 2000. R
42. Jeukendrup, A.E. K. Vet-Joop, A. Sturk, J.H.J.C. Stegen, J. Senden, W.H.M.Saris, and A.J.M.Wagenmakers Relationship between gastro-intestinal complaints and endotoxaemia, cytokine release and acute phase reaction during and after a long-distance triathlon. Clinical Science 98 (1): 47-55, 2000. O
43. Jeukendrup A.E. Mogelijke verbanden tussen voeding en overtraining Vlaams Tijdschrift voor Sportgeneeskunde 80: 37-45, 1999. R
44. Jeukendrup A.E. Dietary fat and physical performance Current Opinions in Clinical Nutrition and Metabolic Care 2: 521-526, 1999. R
45. L. J.C. van Loon, A. E. Jeukendrup, W.H.M. Saris and A.J.M. Wagenmakers. Effect of training status on fuel selection during submaximal exercise with glucose ingestion. Journal of Applied Physiology 87(4): 1413-1418, 1999. O Free
46. Jeukendrup, A. E., J. Stegen, A. Gijsen, F. Brouns, W. H. M. Saris and A. J. M. Wagenmakers. Carbohydrate ingestion can completely suppress endogenous glucose production during exercise. American Journal of Physiology Endocrinology and Metabolism 276: E672-E683, 1999. O Free
47. Jeukendrup, A. E., A. Raben, A. Gijsen, J. Stegen, F. Brouns, W. H. M. Saris and A. J. M. Wagenmakers. Glucose kinetics during prolonged exercise following glucose ingestion: a comparison of tracers. Journal of Physiology 515.2: 579-589, 1999. O Free
48. Oomen, J. and Jeukendrup, A. E. De rol van intramuscular triacylglycerol tijdens inspanning. Geneeskunde en Sport, 31(6): 176-183, 1998. R
49. Jeukendrup, A. E. and A. van Diemen. Heart rate during training and competition - cycling Journal of Sports Sciences 16: S91-S99, 1998. R
50. Jeukendrup, A. E., W. H. M. Saris and A. J. M. Wagenmakers. Fat metabolism during exercise: a review. Part III: The effects of nutritional interventions International Journal of Sports Medicine 19: 371-379, 1998. R
51. Jeukendrup, A. E., W. H. M. Saris and A. J. M. Wagenmakers. Fat metabolism during exercise: a review. Part II: Regulation and the effect of training International Journal of Sports Medicine 20 293-301, 1998. R
52. Jeukendrup, A. E., W. H. M. Saris and A. J. M. Wagenmakers. Fat metabolism during exercise: a review. Part I: Fat mobilization and oxidation International Journal of Sports Medicine 19: 1-14, 1998. R
53. Hawley, J.H., F. Brouns and Jeukendrup, A. E. Nutritional strategies to enhance fat metabolism during exercise Sports Medicine 25(4): 241-257, 1998. R
54. Jeukendrup, A. E., J. J. H. C. Thielen, A. J. M. Wagenmakers, F. Brouns and W. H. M. Saris. Effect of MCT and carbohydrate ingestion on substrate utilization and cycling performance. American Journal of Clinical Nutrition 67: 397-404, 1998. O Free
55. Jeukendrup, A. E. Koolhydraat en vetinname tijdens inspanning: effecten op metabolisme en prestatie. Tijdschrift voor Dietisten 11: 210-214, 1997. R
56. Jeukendrup, A. E., M. K. C. Hesselink, H. Keizer, H. Kuipers. Lack of scientific background for the Conconi test? International Journal of Sports Medicine 18: 393-396, 1997. L
57. Coyle, E. F., A. E. Jeukendrup, A. J. M. Wagenmakers and W. H. M. Saris. Fatty acid oxidation is directly regulated by carbohydrate metabolism during exercise. American Journal of Physiology Endocrinology and Metabolism 273: E268-E275, 1997. O
58. Jeukendrup, A. E. Invloed van vetdieet en vetsupplementatie op de duurprestatie Geneeskunde en Sport 30(2): 52-55, 1997. R
59. Jeukendrup, A. E., M. Mensink, W. H. M. Saris and A. J. M. Wagenmakers. Exogenous glucose oxidation during exercise in endurance-trained and untrained subjects. Journal of Applied Physiology 82: 835-840, 1997. O
60. Jeukendrup, A. E., F. Brouns, A. J. M. Wagenmakers and W. H. M. Saris. Carbohydrate feedings improve 1 H time trial cycling performance. International Journal of Sports Medicine 18(2): 125-129, 1997. O
61. Hogervorst, E., W. Riedel, A. Jeukendrup and J. Jolles. Cognitive performance after strenuous physical exercise. Perceptual Motor Skills 83: 479-488, 1996. O
62. Jeukendrup, A. E., L. Borghouts, W. H. M. Saris and A. J. M. Wagenmakers. Reduced oxidation rates of ingested glucose during prolonged exercise with low endogenous CHO availability. Journal of Applied Physiology 81: 1952-1957, 1996. O
63. Jeukendrup, A. E., A. J. M. Wagenmakers, F. Brouns, D. Halliday and W. H. M. Saris. Effects of carbohydrate (CHO) and fat supplementation on CHO metabolism during prolonged exercise. Metabolism 45(7): 915-921: 1996. O
64. Jeukendrup, A. E., W. H. M. Saris, R. Van Diesen, F. Brouns and A. J. M. Wagenmakers. Effect of endogenous carbohydrate availability on oral medium-chain triglyceride oxidation during prolonged exercise. Journal of Applied Physiology 80: 949-954, 1996. O
65. Jeukendrup, A. E., W. H. M. Saris, F. Brouns and A. D. M. Kester. A new validated endurance performance test. Medicine and Science in Sport and Exercise 27(9): 266-270, 1995. O
66. Jeukendrup, A. E., P. Schrauwen, A. J. M. Wagenmakers, F. Brouns and W. H. M. Saris. Metabolic availability of medium chain triglycerides co-ingested with carbohydrates during prolonged exercise Journal of Applied Physiology 79(3): 756-762, 1995. O
67. Leijssen, D. P. C., W. H. M. Saris, A. E. Jeukendrup and A. J. M. Wagenmakers. Oxidation of orally ingested [13C]-galactose and [13C]-glucose during exercise. Journal of Applied Physiology 79(3): 720-725, 1995. O
68. Pasman, W. J., M. A. van Baak, A. E. Jeukendrup and A. de Haan. The effect of varied dosages of caffeine on endurance performance time. International Journal of Sports Medicine 16: 229-234, 1995. O
69. Jeukendrup, A. E. and M. K. C. Hesselink. Overtraining: what do lactate curves tell us? British Journal of Sports Medicine 28: 1994. R
70. Jeukendrup, A., W. H. M. Saris and F. Brouns. Substraat gebruik tijdens inspanning: de rol van vetten. Geneeskunde en Sport 27: 116-124, 1994. R
71. Snyder, A. C., A. E. Jeukendrup, M. K. C. Hesselink, H. Kuipers and C. Foster. A physiological/psychological indicator of over-reaching during intensive training. International Journal of Sports Medicine 14: 29-32, 1993. O
72. Saris, W. H. M., B. H. Goodpaster, A. E. Jeukendrup, F. Brouns, D. Halliday and A. J. M. Wagenmakers. Exogenous carbohydrate oxidation from different carbohydrate sources during exercise. Journal of Applied Physiology 75: 2168-2172, 1993. O
73. Arts, F. J. P., H. Kuipers, A. E. Jeukendrup and W. H. M. Saris. A short cycle ergometer test to predict maximal workload and maximal oxygen uptake. International Journal of Sports Medicine 14: 460-464, 1993. O
74. Cheng, B., H. Kuipers, A. C. Snyder, H. A. Keizer, A. Jeukendrup and M. Hesselink. A new approach for the determination of ventilatory and lactate thresholds. International Journal of Sports Medicine 13: 518-522, 1992. O
75. Beckers, E. J., A. E. Jeukendrup, F. Brouns, A. J. M. Wagenmakers and W.H.M.Saris. Gastric emptying of carbohydrate-medium chain triglyceride suspensions at rest. International Journal of Sports Medicine 13: 581-584, 1992. O
76. Jeukendrup, A., M. K. C. Hesselink, A. C. Snyder, H. Kuipers and H. A. Keizer. Physiological changes in male competitive cyclists after two weeks of intensified training. International Journal of Sports Medicine 13: 534-541, 1992. O

PUBLICACIONES EN PUBLICE

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Resumen: En esta revisión holística de la ciencia ciclistica, los objetivos son: (1) identificar los factores humanos y ambientales que influencian la potencia y la velocidad en el ciclismo; (2) discutir, con la ayuda de un modelo esquemático, las complejas i... (Truncado a 250 caracteres)
Publicación Original: 2003. Publicación en PubliCE: 19/05/2004. Visitas: 7689.

2. (Pid: 820) Posibles Vínculos entre la Nutrición y el Sobreentrenamiento (PubliCE Standard)

Resumen: Existen diversos vínculos entre nutrición y sobreentrenamiento. Una nutrición bien balanceada en combinación con suplementos de nutrición dosificados en el tiempo correcto (por ejemplo bebidas con carbohidratos), puede mejorar considerablemente el re... (Truncado a 250 caracteres)
Año de Realización: 2000. Publicación en PubliCE: 26/05/2007. Visitas: 9487.

3. (Pid: 833) Metabolismo de las Grasas Durante el Ejercicio: Una Revisión Parte I: Movilización de Ácidos Grasos y Metabolismo Muscular (PubliCE Standard)

Resumen: Esta es la primera parte de una serie de tres artículos acerca del metabolismo de grasas durante el ejercicio. En esta parte se discutirá la movilización de los ácidos grasos y su metabolismo como así también los posibles pasos limitantes de la oxida... (Truncado a 250 caracteres)
Año de Realización: 1999. Publicación en PubliCE: 25/06/2007. Visitas: 97581.

4. (Pid: 839) Cinética de la Glucosa Durante el Ejercicio Prolongado en Sujetos Humanos Altamente Entrenados: Efecto de la de Glucosa (PubliCE Standard)

Resumen: 1. Los objetivos de este estudio fueron: 1) investigar si la de glucosa durante el ejercicio prolongado reduce la oxidación de glucógeno muscular corporal total; 2) determinar el grado en el cual la glucosa que desaparece del plasma es ox... (Truncado a 250 caracteres)
Año de Realización: 1999. Publicación en PubliCE: 10/07/2007. Visitas: 9689.

5. (Pid: 842) Metabolismo de las Grasas Durante el Ejercicio Una Revisión. Parte II: Regulación del Metabolismo y los Efectos del Entrenamiento (PubliCE Standard)

Resumen: Esta parte discute la compleja regulación del metabolismo de las grasas. Las catecolaminas como estimulador de lipólisis y la insulina como supresor, desempeñan roles muy importantes en la regulación de la oxidación de las grasas. La interacción de l... (Truncado a 250 caracteres)
Año de Realización: 1999. Publicación en PubliCE: 16/07/2007. Visitas: 72044.

6. (Pid: 897) Metabolismo de las Grasas Durante el Ejercicio: Una Revisión Parte III: Efectos de las Intervenciones Nutricionales (PubliCE Standard)

Resumen: Por medio de cambios en la nutrición es posible manipular la oxidación de grasas. Generalmente se teoriza que el aumento de la oxidación de grasas puede reducir la degradación de glucógeno, y en consecuencia, mejorar el rendimiento. Por lo tanto, los... (Truncado a 250 caracteres)
Año de Realización: 1999. Publicación en PubliCE: 16/11/2007. Visitas: 5581.

7. (Pid: 1224) Efecto del Contenido de Glucosa y Sodio de las Bebidas sobre el Transporte de Fluidos (PubliCE Premium)

Resumen: Antecedentes: El rápido transporte de fluidos a partir de las bebidas ingeridas es el objetivo de las soluciones de rehidratación oral (ORS) y las bebidas deportivas. Objetivos: El objetivo del presente estudio fue ... (Truncado a 250 caracteres)
Publicación Original: 1930. Publicación en PubliCE: 18/02/2010. Visitas: 1343.

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