Kesan pengambilan kopi segera berkafeina terhadap prestasi larian pecut 100m
List of Authors
  • Lidyana Roslan , Mohamad Afif Zulhusmi Alet , Norlena Salamuddin

Keyword
  • larian pecut 100m, kopi segera, kafeina, prestasi

Abstract
  • Kopi merupakan sumber semula jadi kafeina yang boleh merangsang daya ketahanan dan kekuatan badan manusia. Namun, didapati tiada penelitian kesan ergogenik kopi segera terhadap prestasi larian pecut 100m. Maka, hubungan di antara pengambilan kopi segera terhadap masa yang diambil untuk menghabiskan larian 100m dikaji dengan mengadaptasikan konsep 1-repitasi-maksimum dalam 2 cubaan larian 100m. Sampel kajian seramai n = 6 orang atlet telah diberi sejenis minuman suplemen 30 minit sebelum larian pecut 5 hari berturut-turut diselangi 2 hari rehat selama 3 minggu. Turutan minuman adalah kopi segera dekaf (DC), air (W) dan kopi segera berkafeina (C). Masa diambil pada jarak 60m (t60m) dan 100m (t100m). Bagi memastikan dapatan kebarangkalian teguh terhadap ralat jenis I, data t100m yang tidak homogen diubahsuai menggunakan kaedah Nonparametric Levene’s Test (Diff_Rt100m). Berdasarkan analisis ANOVA satu hala, didapati ada perbezaan skor min yang signifikan untuk Diff_Rt100m (F(2,87) = 5.583, p = .005, ηp2 = .127). Selanjutnya, analisis Post-hoc data Diff_Rt100m menunjukkan perbezaan signifikan di antara skor min DC dan C untuk masa larian 100m. Didapati tiada perbezaan signifikan untuk catatan masa pada 60m. Kesimpulannya, minuman kopi segera mempengaruhi prestasi larian 100m. Namun begitu, kajian lanjut harus dijalankan untuk mengenal pasti kesan ergogenik kafeina dalam bentuk kopi segera terhadap prestasi larian 100m.

Reference
  • 1. Ahad, N. A., & Yahaya, S. S. S. (2014, July). Sensitivity analysis of Welch’st-test. In AIP Conference Proceedings (Vol. 1605, No. 1, pp. 888-893). American Institute of Physics.

    2. Ahrendt, D. M. (2001). Ergogenic aids: counseling the athlete. American family physician, 63(5), 913.

    3. Alcohol and Drug Foundation (2020). Drug Facts. Retrieved May 8, 2020, from https://adf.org.au/drug-facts/#wheel

    4. Anselme, F., Collomp, K., Mercier, B., Ahmaidi, S., & Prefaut, C. (1992). Caffeine increases maximal anaerobic power and blood lactate concentration. European journal of applied physiology and occupational physiology, 65(2), 188-191.

    5. Bean, A. (2017). The complete guide to sports nutrition. Bloomsbury Publishing.

    6. Burke, L. M. (2008). Caffeine and sports performance. Applied physiology, nutrition, and metabolism, 33(6), 1319-1334.

    7. Cain, M. K., Zhang, Z., & Yuan, K. H. (2017). Univariate and multivariate skewness and kurtosis for measuring nonnormality: Prevalence, influence and estimation. Behavior research methods, 49(5), 1716-1735.

    8. Conover, W. J., Guerrero-Serrano, A. J., & Tercero-Gómez, V. G. (2018). An update on ‘a comparative study of tests for homogeneity of variance’. Journal of Statistical Computation and Simulation, 88(8), 1454-1469.

    9. Davis, J. K., & Green, J. M. (2009). Caffeine and anaerobic performance. Sports Medicine, 39(10), 813-832.

    10. Dawes, John. "Do data characteristics change according to the number of scale points used? An experiment using 5-point, 7-point and 10-point scales." International journal of market research 50.1 (2008): 61-104.

    11. Del Coso, J., Muñoz, G., & Muñoz-Guerra, J. (2011). Prevalence of caffeine use in elite athletes following its removal from the World Anti-Doping Agency list of banned substances. Applied physiology, nutrition, and metabolism, 36(4), 555-561.

    12. Di Prampero, P. E., Fusi, S., Sepulcri, L., Morin, J. B., Belli, A., & Antonutto, G. (2005). Sprint running: a new energetic approach. Journal of experimental Biology, 208(14), 2809-2816.

    13. Duchan, E., Patel, N. D., & Feucht, C. (2010). Energy drinks: a review of use and safety for athletes. The Physician and sportsmedicine, 38(2), 171-179.

    14. Evans, M., Tierney, P., Gray, N., Hawe, G., Macken, M., & Egan, B. (2018). Acute ingestion of caffeinated chewing gum improves repeated sprint performance of team sport athletes with low habitual caffeine consumption. International journal of sport nutrition and exercise metabolism, 28(3), 221-227.

    15. Ferreira, G. A., Felippe, L. C., Bertuzzi, R., Bishop, D. J., Barreto, E., De-Oliveira, F. R., & Lima-Silva, A. E. (2018). The effects of acute and chronic sprint-interval training on cytokine responses are independent of prior caffeine intake. Frontiers in physiology, 9, 671.

    16. Glaister, M., Howatson, G., Abraham, C. S., Lockey, R. A., Goodwin, J. E., Foley, P., & McInnes, G. (2008). Caffeine supplementation and multiple sprint running performance. Medicine & Science in Sports & Exercise, 40(10), 1835-1840.

    17. Goldstein, E. R., Ziegenfuss, T., Kalman, D., Kreider, R., Campbell, B., Wilborn, C., Taylor, L., Willughby, D., Stout, J., Graves, B. S. & Wildman, R. (2010). International society of sports nutrition position stand: caffeine and performance. Journal of the International Society of Sports Nutrition, 7(1), 5.

    18. Graham, T. E., Rush, J. W., & Soeren, M. H. V. (1994). Caffeine and exercise: metabolism and performance. Canadian Journal of Applied Physiology, 19(2), 111-138.

    19. Greer, F., Friars, D., & Graham, T. E. (2000). Comparison of caffeine and theophylline ingestion: exercise metabolism and endurance. Journal of applied physiology, 89(5), 1837-1844.

    20. Grgic, J., Grgic, I., Pickering, C., Schoenfeld, B. J., Bishop, D. J., & Pedisic, Z. (2020). Wake up and smell the coffee: Caffeine supplementation and exercise performance—An umbrella review of 21 published meta-analyses. British journal of sports medicine, 54(11), 681-688.

    21. Higgins, S., Straight, C. R., & Lewis, R. D. (2016). The effects of preexercise caffeinated coffee ingestion on endurance performance: an evidence-based review. International journal of sport nutrition and exercise metabolism, 26(3), 221-239.

    22. Hoffman, J. R. (2010). Caffeine and energy drinks. Strength & Conditioning Journal, 32(1), 15-20.

    23. Jebabli, N., Ouerghi, N., Bouabid, J., & Bettaib, R. (2017). Effect of caffeine on the repeated modified agility test from some cardiovascular factors, blood glucose and rating of perceived exertion in young people. Iranian journal of public health, 46(6), 755.

    24. Lieberman, H. R., Tharion, W. J., Shukitt-Hale, B., Speckman, K. L., & Tulley, R. (2002). Effects of caffeine, sleep loss, and stress on cognitive performance and mood during US Navy SEAL training. Psychopharmacology, 164(3), 250-261.

    25. Ludwig, I. A., Mena, P., Calani, L., Cid, C., Del Rio, D., Lean, M. E., & Crozier, A. (2014). Variations in caffeine and chlorogenic acid contents of coffees: what are we drinking?. Food & function, 5(8), 1718-1726.

    26. Majumdar, A. S., & Robergs, R. A. (2011). The science of speed: Determinants of performance in the 100 m sprint. International Journal of Sports Science & Coaching, 6(3), 479-493.

    27. Maughan, R. J., Burke, L. M., Dvorak, J., Larson-Meyer, D. E., Peeling, P., Phillips, S. M., ... & Meeusen, R. (2018). IOC consensus statement: dietary supplements and the high-performance athlete. International journal of sport nutrition and exercise metabolism, 28(2), 104-125.

    28. McDaniel, L. W., McIntire, K., Streitz, C., Jackson, A., & Gaudet, L. (2010). The effects of caffeine on athletic performance. College Teaching Methods & Styles Journal (CTMS), 6(1), 33-38.

    29. Nehlig, A. (2018). Interindividual differences in caffeine metabolism and factors driving caffeine consumption. Pharmacological reviews, 70(2), 384-411.

    30. Powers, S. K., Byrd, R. J., Tulley, R., & Callender, T. (1983). Effects of caffeine ingestion on metabolism and performance during graded exercise. European journal of applied physiology and occupational physiology, 50(3), 301-307.

    31. Purohit, G., & Dhawan, J. (2019). Adult muscle stem cells: Exploring the links between systemic and cellular metabolism. Frontiers in Cell and Developmental Biology, 7.

    32. Ragin, C. C. (2014). The comparative method: Moving beyond qualitative and quantitative strategies. Univ of California Press.

    33. Razali, N. M., & Wah, Y. B. (2011). Power comparisons of shapiro-wilk, kolmogorov-smirnov, lilliefors and anderson-darling tests. Journal of statistical modeling and analytics, 2(1), 21-33.

    34. Roberts, M. D., Taylor, L. W., Wismann, J. A., Wilborn, C. D., Kreider, R. B., & Willoughby, D. S. (2007). Effects of ingesting JavaFit Energy Extreme functional coffee on aerobic and anaerobic fitness markers in recreationally-active coffee consumers. Journal of the International Society of Sports Nutrition, 4(1), 25.

    35. Rusticus, S. A., & Lovato, C. Y. (2014). Impact of sample size and variability on the power and type I error rates of equivalence tests: A simulation study. Practical Assessment, Research, and Evaluation, 19(1), 11.

    36. Shapiro, S. S., & Wilk, M. B. (1965). An analysis of variance test for normality (complete samples). Biometrika, 52(3/4), 591-611.

    37. Shear, B. R., Nordstokke, D. W., & Zumbo, B. D. (2018). A note on using the nonparametric Levene test when population means Are unequal. Practical Assessment, Research, and Evaluation, 23(1), 13.

    38. Smith, A. E., Fukuda, D. H., Kendall, K. L., & Stout, J. R. (2010). The effects of a pre-workout supplement containing caffeine, creatine, and amino acids during three weeks of high-intensity exercise on aerobic and anaerobic performance. Journal of the International Society of Sports Nutrition, 7(1), 10.

    39. Sökmen, B., Armstrong, L. E., Kraemer, W. J., Casa, D. J., Dias, J. C., Judelson, D. A., & Maresh, C. M. (2008). Caffeine use in sports: considerations for the athlete. The Journal of Strength & Conditioning Research, 22(3), 978-986.

    40. Trexler, E. T., Smith-Ryan, A. E., Roelofs, E. J., Hirsch, K. R., & Mock, M. G. (2016). Effects of coffee and caffeine anhydrous on strength and sprint performance. European journal of sport science, 16(6), 702-710.

    41. Van Praagh, E., & Doré, E. (2002). Short-term muscle power during growth and maturation. Sports medicine, 32(11), 701-728.

    42. Wanless, E., Gilreath, E., Judge, L. W., & Bellar, D. (2010). Start Strong Finish Strong: Utilizing Caffeine to Maximize Sport Performance. Tradition, Transition, Transformation, 39(3), 8.

    43. Weinberg, B.A.; Bealer, B. The World of Caffeine: The Science and Culture of the World's Most Popular Drug; Routledge: New York, 2001, pp. 1-41.

    44. Yap, B. W., & Sim, C. H. (2011). Comparisons of various types of normality tests. Journal of Statistical Computation and Simulation, 81(12), 2141-2155.