Abstract
The purpose of the present study was to investigate whether both glycemic index (GI) and fructose content of a pre-exercise meal would affect substrate utilization during subsequent brisk walking. Ten healthy young males completed 60 min of 46% \( \dot{V}{\text{O}}_{{2\max }} \) brisk walking 2 h after they consumed one of three breakfasts: a low-GI meal without fructose (LGI), a low-GI meal including fructose (LGIF), and a high-GI meal without fructose (HGI). The calculated GI values for the three meals were 41, 39, and 72, respectively. Substrate utilization was measured using indirect respiratory calorimetry method. During the postprandial period, the incremental area under the blood response curve values of glucose and insulin were higher in the HGI trial, compared with those in the LGI and LGIF trials (HGI vs. LGI and LGIF: Glucose 223.6 ± 19.1 vs. 70.2 ± 7.4 and 114.1 ± 16.4 mmol min L−1; Insulin 4257 ± 932 vs. 920 ± 319 and 1487 ± 348 mU min L−1). During exercise, substrate preference was distinct based on different pre-exercise carbohydrate meals. Higher fat and lower carbohydrate oxidation was observed in the LGI trial, whereas both the HGI and LGIF trials were characterized by higher carbohydrate and lower fat oxidation (LGI vs. LGIF and HGI: Carbohydrate 59.3 ± 2.4 vs. 69.8 ± 3.9 and 72.7 ± 3.9 g; Fat 22.7 ± 2.0 vs. 18.5 ± 1.7 and 17.6 ± 1.3 g; P < 0.05). In conclusion, the presence of fructose in a LGI breakfast resulted in similar substrate utilization during subsequent brisk walking with that induced by a HGI breakfast. It appears that both the GI and fructose content in a breakfast individually affect substrate utilization during subsequent moderate intensity exercise.
This is a preview of subscription content, access via your institution.



References
Abdel-Sayed A, Binnert C, Lê KA, Bortolotti M, Schneiter P, Tappy L (2008) A high-fructose diet impairs basal and stress-mediated lipid metabolism in healthy male subjects. Br J Nutr 100(02):393–399. doi:10.1017/S000711450789547X
Achten J, Jeukendrup AE (2003) Maximal fat oxidation during exercise in trained men. Int J Sports Med 24(8):603–608. doi:10.1055/s-2003-43265
Achten J, Jeukendrup AE (2004) Optimizing fat oxidation through exercise and diet. Nutrition 20(7–8):716–727. doi:10.1016/j.nut.2004.04.005
Ahlborg G, Bjorkman O (1990) Splanchnic and muscle fructose metabolism during and after exercise. J Appl Physiol 69(4):1244–1251
Atkinson FS, Foster-Powell K, Brand-Miller JC (2008) International tables of glycemic index and glycemic load values: 2008. Diabetes Care 31(12):2281–2283. doi:10.2337/dc08-1239
Backhouse SH, Williams C, Stevenson E, Nute M (2007) Effects of the glycemic index of breakfast on metabolic responses to brisk walking in females. Eur J Clin Nutr 61(5):590–596. doi:10.1038/sj.ejcn.1602566
Bennard P, Doucet É (2006) Acute effects of exercise timing and breakfast meal glycemic index on exercise-induced fat oxidation. Appl Physiol Nutr Metabol 31(5):502–511. doi:10.1139/H06-027
Bjorkman O, Gunnarsson R, Hagstrom E, Felig P, Wahren J (1989) Splanchnic and renal exchange of infused fructose in insulin-deficient type 1 diabetic patients and healthy controls. J Clin Invest 83(1):52–59
Blaak EE, Saris WHM (1996) Postprandial thermogenesis and substrate utilization after ingestion of different dietary carbohydrates. Metabolism 45(10):1235–1242
Borg GA (1973) Perceived exertion: a note on “history” and methods. Med Sci Sports 5(2):90–93
Brand-Miller JC, Foster-Powell K, Colagiuri S, Leeds A (1998) The GI factor. Hodder Headline. Rydalmere, Australia
Bray GA, Nielsen SJ, Popkin BM (2004) Consumption of high-fructose corn syrup in beverages may play a role in the epidemic of obesity. Am J Clin Nutr 79(4):537–543
Campbell PJ, Carlson MG, Hill JO, Nurjhan N (1992) Regulation of free fatty acid metabolism by insulin in humans: role of lipolysis and reesterification. Am J Physiol 263(6 Pt 1):E1063–E1069
Chen YJ, Wong SH, Wong CK, Lam CW, Huang YJ, Siu PM (2008a) The effect of a pre-exercise carbohydrate meal on immune responses to an endurance performance run. Br J Nutr 100(6):1260–1268. doi:10.1017/S0007114508975619
Chen YJ, Wong SH, Wong CK, Lam CW, Huang YJ, Siu PM (2008b) Effect of preexercise meals with different glycemic indices and loads on metabolic responses and endurance running. Int J Sport Nutr Exerc Metab 18(3):281–300
Chong MFF, Fielding BA, Frayn KN (2007) Mechanisms for the acute effect of fructose on postprandial lipemia. Am J Clin Nutr 85(6):1511–1520
Coyle EF (1991) Timing and method of increased carbohydrate intake to cope with heavy training, competition and recovery. J Sports Sci 9:29–52
Coyle EF (1995) Substrate utilization during exercise in active people. Am J Clin Nutr 61(4):S968–S979
Craig CL, Marshall AL, Sjostrom M, Bauman AE, Booth ML, Ainsworth BE, Pratt M, Ekelund U, Yngve A, Sallis JF, Oja P (2003) International physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc 35(8):1381–1395
Décombaz J, Sartori D, Arnaud MJ, Thelin AL, Schurch P, Howald H (1985) Oxidation and metabolic effects of fructose or glucose ingested before exercise. Int J Sports Med 6(5):282–286. doi:10.1055/s-2008-1025852
Dill DB, Costill DL (1974) Calculation of percentage changes in volumes of blood, plasma, and red cells in dehydration. J Appl Physiol 37(2):247–248
Fielding RA, Costill DL, Fink WJ, King DS, Kovaleski JE, Kirwan JP (1987) Effects of pre-exercise carbohydrate feedings on muscle glycogen use during exercise in well-trained runners. Eur J Appl Physiol 56(2):225–229. doi:10.1007/BF00640649
Frayn KN (1983) Calculation of substrate oxidation rates in vivo from gaseous exchange. J Appl Physiol 55(2):628–634
Hargreaves M, Costill DL, Fink WJ, King DS, Fielding RA (1987) Effect of pre-exercise carbohydrate feedings on endurance cycling performance. Med Sci Sports Exerc 19(1):33–36
Jenkins DJA, Wolever TMS, Taylor RH, Barker H, Fielden H, Baldwin JM, Bowling AC, Newman HC, Jenkins AL, Goff DV (1981) Glycemic index of foods: a physiological basis for carbohydrate exchange. Am J Clin Nutr 34(3):362–366
Johnson RJ, Perez-Pozo SE, Sautin YY, Manitius J, Sanchez-Lozada LG, Feig DI, Shafiu M, Segal M, Glassock RJ, Shimada M, Roncal C, Nakagawa T (2009) Hypothesis: could excessive fructose intake and uric acid cause type 2 diabetes? Endocr Rev 30(1):96–116. doi:10.1210/er.2008-0033
Lê KA, Tappy L (2006) Metabolic effects of fructose. Curr Opin Clin Nutr Metab Care 9(4):469–475
Marriott BP, Cole N, Lee E (2009) National estimates of dietary fructose intake increased from 1977 to 2004 in the United States. J Nutr 139(6):S1228–S1235. doi:10.3945/jn.108.098277
McArdle WD, Katch FI, Katch VL (2006) Exercise physiology: energy, nutrition, and human performance, 6th edn. Williams & Wilkins, Baltimore
Montain SJ, Hopper MK, Coggan AR, Coyle EF (1991) Exercise metabolism at different time intervals after a meal. J Appl Physiol 70(2):882–888
Romijn JA, Coyle EF, Sidossis LS, Gastaldelli A, Horowitz JF, Endert E, Wolfe RR (1993) Regulation of endogenous fat and carbohydrate metabolism in relation to exercise intensity and duration. Am J Physiol Endocrinol Metab 265(3):E380–E391
Stanhope KL, Griffen SC, Bair BR, Swarbrick MM, Keim NL, Havel PJ (2008) Twenty-four-hour endocrine and metabolic profiles following consumption of high-fructose corn syrup-, sucrose-, fructose-, and glucose-sweetened beverages with meals. Am J Clin Nutr 87(5):1194–1203
Stevenson EJ, Astbury NM, Simpson EJ, Taylor MA, Macdonald IA (2009) Fat oxidation during exercise and satiety during recovery are increased following a low-glycemic index breakfast in sedentary women. J Nutr 139(5):890–897. doi:10.3945/jn.108.101956
Storey ML, Forshee RA, Anderson PA (2006) Beverage consumption in the US population. J Am Diet Assoc 106(12):1992–2000. doi:10.1016/j.jada.2006.09.009
Tarnopolsky LJ, MacDougall JD, Atkinson SA, Tarnopolsky MA, Sutton JR (1990) Gender differences in substrate for endurance exercise. J Appl Physiol 68(1):302–308
Truswell AS, Seach JM, Thorburn AW (1988) Incomplete absorption of pure fructose in healthy subjects and the facilitating effect of glucose. Am J Clin Nutr 48(6):1424–1430
Venables MC, Achten J, Jeukendrup AE (2005) Determinants of fat oxidation during exercise in healthy men and women: a cross-sectional study. J Appl Physiol 98(1):160–167. doi:10.1152/japplphysiol.00662.2003
Wee SL, Williams C, Tsintzas K, Boobis L (2005) Ingestion of a high-glycemic index meal increases muscle glycogen storage at rest but augments its utilization during subsequent exercise. J Appl Physiol 99(2):707–714. doi:10.1152/japplphysiol.01261.2004
Wolever TMS, Jenkins DJA (1986) The use of the glycemic index in predicting the blood glucose response to mixed meals. Am J Clin Nutr 43(1):167–172
Wong SH, Siu PM, Lok A, Chen YJ, Morris J, Lam CW (2008) Effect of the glycaemic index of pre-exercise carbohydrate meals on running performance. Eur J Sport Sci 8(1):23–33. doi:10.1080/17461390701819451
Wong SH, Williams C, Adams N (2000) Effects of ingesting a large volume of carbohydrate-electrolyte solution on rehydration during recovery and subsequent exercise capacity. Int J Sport Nutr Exerc Metab 10(4):375–393
Wu CL, Nicholas C, Williams C, Took A, Hardy L (2003) The influence of high-carbohydrate meals with different glycaemic indices on substrate utilisation during subsequent exercise. Br J Nutr 90(06):1049–1056. doi:10.1079/BJN20031006
Acknowledgments
This study was funded by the Lee Hysan Foundation Research Grant (No. CA 11159). The authors wish to thank Dr. Susan CHUNG for providing the meals and nutritional calculation, and all the subjects for participating in this study.
Conflict of interest
There are no conflicts of interest that should be disclosed.
Author information
Affiliations
Corresponding author
Additional information
Communicated by Susan A. Ward.
Rights and permissions
About this article
Cite this article
Sun, FH., Wong, S.HS., Huang, YJ. et al. Substrate utilization during brisk walking is affected by glycemic index and fructose content of a pre-exercise meal. Eur J Appl Physiol 112, 2565–2574 (2012). https://doi.org/10.1007/s00421-011-2231-6
Received:
Accepted:
Published:
Issue Date:
Keywords
- Carbohydrate oxidation
- Fat oxidation
- Young males
- Breakfast