Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.723.726SiahkohianM. FarhadiH. Naghizadeh BaghiA. ValizadehA. 4200884The purpose of this study was to determine the effect of 5% carbohydrate ingestion on the sprint performance immediately following 90 min of running at 70-80% of maximal heart rate reserve. Thirty young active men were selected as subjects and allocated randomly to two carbohydrate (CHO, N = 15) and placebo (PL, N = 15) groups. Pre-test 200 m dash, 90 min running and post-test 200 m dash took place, respectively. Exercise heart rate monitored during 90 min running by a cardio frequency meter. Significant differences were found between the CHO and PL post-test 200 m dash records (p<0.05). Blood glucose was found to be significantly higher at the end of the 90 min running for the CHO group than for the PL group (p<0.01). The results suggest that carbohydrate ingestion during endurance exercise inhibits failing of Sprint performance of young active men.]]>Ali, A., C. Williams, C.W. Nicholas and A. Foskett,20073919691976Backhouse, S.H., A. Ali, S.J.H. Biddle and C. Williams,200717605610Ball, T.C., S.A. Headley, P. Vanderburgh and J.C. Smith,19955151158Below, P.R., R. Mora-RodrÃguez, J. Gonzalez-Alonso and E. Coyle,199527200210Bosch, A.N., S. Denni and T.D. Noakes,19947623642372Coggan, A.R. and S.C. Swanson,199224S331S335Febbraio, M.A., A. Chiu, D.J. Angus, M.J. Arkinstall and J.A. Hawley,20008922202226Francescato, M. and I. Puntel,200646248248Fritzsche, R.G., T.W. Switzer, B.J. Hodgkinson, S. Lee, J.C. Martin and E.F. Coyle,200088730737Guerra, I., R. Chaves, T. Barros and J. Tirapegui,20043198202Jarvis, A.T., S.D. Felix, S. Sims, M.T. Jones, M.A. Coughlin and S.A. Headley,1999114241440Jeukendrup, A., F. Brouns, A.J.M. Wagenmakers and W.H.M. Saris,199718125129Kavouras, S.A., J.P. Troup and J.R. Berning,2004146272Khanna, G.L. and I. Manna,2005121634638Mark, A., C. Alison, J. Damien, E. Elissj and A. John,20008922202226McConnell, G., K. Kloot and M. Hargreaves,19962813001304Stannard, S.R., E.J. Hawke and N. Schnell,20072007Stellingwerff, T., H. Boon, A.P. Gijsen, J.H. Stegen, H. Kuipers and L.J. van Loon,2007454635647Sugiura, K. and K. Kobayashi,19983016241630Tsintzas, O., C. Williams, W. Wilson and J. Burrin,19962813731379Wallis, G.A., D.S. Rowlands, C. Shaw, R.L. Jentjens and A.E. Jeukendrup,200537426432Wilber, R.L. and R.J. Moffatt,19922317327Yoshida, H. and Y. Imafuku,200755479482