Document Type : Research Paper I Open Access I Released under (CC BY-NC) license

Authors

1 department of exercise physiology, faculty of physical education and sport sciences< University of Guilan, Rasht, Iran

2 department of exercise physiology, Faculty of physical education and sport sciences, University of Guilan, Rasht/Iran

3 department of exercise physiology, faculty of physical education and sport sciences, University of Guilan, Rasht, Iran

Abstract

Background: This study aimed to investigate the effect of caffeine and carbohydrate co-ingestion on anaerobic performance and muscular strength of female wushu athletes.
Methods: 7 female wushu athletes with 22.00 ± 6.11 years of age, 52.96 ± 4.87 kg weight and 161.29 ± 5.28 cm height participated in 1RM leg and bench press and RAST tests on 4 occasions separated by 1-week washout after accidental consumption of caffeine (6 mg/kg in 250 mL water), 8% carbohydrate (21 g in 250 mL water), caffeine+carbohydrate and placebo. Data were analyzed by repeated measure ANOVA and Bonferroni tests in SPSS26, α = 0.05).
Results: caffeine alone did not affect variables (P ≥ 0.05). Carbohydrate consumption increased 1RM bench press ⁓7% (P = 0.010) and 1RM leg press ⁓16% (P = 0.033). co-ingestion of carbohydrate and caffeine improved mean power ⁓15% (P = 0.027), 1RM bench press ⁓26% (P = 0.005) and leg press ⁓39% (P = 0.027).
Conclusion: it seems, that carbohydrate has more effect on strength than caffeine, but combined with caffeine it may improve mean power besides the muscular strength in female wushu athletes due to effects on the central nervous system and increasing carbohydrate effect.

Keywords

  1. Astorino TA, Rohmann RL, Firth K. (2007). Effect of acute caffeine ingestion on one-repetition maximum muscular strength: 699: May 31 1: 15 pm 1: 30 pm. Medicine & Science in Sports & Exercise.39(5):S43.
  2. Beck TW, Housh TJ, Schmidt RJ, Johnson GO, Housh DJ, Coburn JW, et al. (2006). The acute effects of a caffeine-containing supplement on strength, muscular endurance, and anaerobic capabilities. The Journal of Strength & Conditioning Research.20(3):506-10.
  3. Cheng C-F, Hsu W-C, Kuo Y-H, Shih M-T, Lee C-L. (2016). Caffeine ingestion improves power output decrement during 3-min all-out exercise. European journal of applied physiology.116(9):1693-702.
  4. Coggan AR, Coyle EF. (1991). Carbohydrate ingestion during prolonged exercise: Effects on metabolism and performance. Exerc Sport Sci Rev.19(1):1-40.
  5. Doherty M, Smith PM, Davison RR, Hughes MG. (2002). Caffeine is ergogenic after supplementation of oral creatine monohydrate. Medicine and science in sports and exercise.34(11):1785-92.
  6. Gant N, Ali A, Foskett A. (2010). The influence of caffeine and carbohydrate coingestion on simulated soccer performance. International journal of sport nutrition and exercise metabolism.20(3):191-7.
  7. Ghasemi S, Mousavi Sadati SK. (2021). The effect of one session of the exhaustive exercise & caffeine consumption on muscle fatigue levels & anaerobic power of the professional female karatekas. Journal of Sports Physiology and Athletic Conditioning.2(2):16.
  8. Grgic J, Mikulic P. (2017). Caffeine ingestion acutely enhances muscular strength and power but not muscular endurance in resistance-trained men. European journal of sport science.17(8):1029-36.
  9. Haff GG, Lehmkuhl MJ, McCoy LB, Stone MH. (2003). Carbohydrate supplementation and resistance training. The Journal of Strength & Conditioning Research.17(1):187-96.
  10. Henselmans M, Bjørnsen T, Hedderman R, Vårvik FT. (2022). The effect of carbohydrate intake on strength and resistance training performance: A systematic review. Nutrients.14(4):856.
  11. Hong C, Kim K, Park J. (2021). Comparison of physique and physical fitness of taekwondo gyeorugi and wushu santa athletes. International Journal of Martial Arts.6(2):42-50.
  12. Jordan JB, Korgaokar A, Farley RS, Coons JM, Caputo JL. (2014). Caffeine supplementation and reactive agility in elite youth soccer players. Pediatric exercise science.26(2):168-76.
  13. Krings BM, Peterson TJ, Shepherd BD, McAllister MJ, Smith JW. (2017). Effects of carbohydrate ingestion and carbohydrate mouth rinse on repeat sprint performance. International journal of sport nutrition and exercise metabolism.27(3):204-12.
  14. Krings BM, Rountree JA, McAllister MJ, Cummings PM, Peterson TJ, Fountain BJ, et al. (2016). Effects of acute carbohydrate ingestion on anaerobic exercise performance. Journal of the International Society of Sports Nutrition.13(1):1-11.
  15. Lee C-L, Cheng C-F, Astorino TA, Lee C-J, Huang H-W, Chang W-D. (2014). Effects of carbohydrate combined with caffeine on repeated sprint cycling and agility performance in female athletes. Journal of the International Society of Sports Nutrition.11(1):1-12.
  16. Lee C-L, Cheng C-F, Lin J-C, Huang H-W. (2012). Caffeine’s effect on intermittent sprint cycling performance with different rest intervals. European journal of applied physiology.112(6):2107-16.
  17. Mata F, Valenzuela PL, Gimenez J, Tur C, Ferreria D, Domínguez R, et al. (2019). Carbohydrate availability and physical performance: Physiological overview and practical recommendations. Nutrients.11(5):1084.
  18. Meeusen R, Decroix L. (2018). Nutritional supplements and the brain. International journal of sport nutrition and exercise metabolism.28(2):200-11.
  19. Pfeifer DR, Arvin KM, Herschberger CN, Haynes NJ, Renfrow MS. (2017). A low dose caffeine and carbohydrate supplement does not improve athletic performance during volleyball competition. International journal of exercise science.10(3):340.
  20. Phillips SM, Turner AP, Sanderson MF, Sproule J. (2012). Carbohydrate gel ingestion significantly improves the intermittent endurance capacity, but not sprint performance, of adolescent team games players during a simulated team games protocol. European journal of applied physiology.112(3):1133-41.
  21. Rahimi MR, Jafari A, Golpasandi H. (2017). The effect of caffeine ingestion on anaerobic performance and fatigue index in the morning and the evening times. Journal of Applied Health Studies in Sport Physiology.4(1):60-7.
  22. Ranjbar R, Kordi M, Gaeini A. (2009). The effect of caffeine ingestion on anaerobic power; fatigue index and blood lactate levels in boys athlete students. Journal of Sport Biosciences.1(1):123-36.
  23. Roberts SP, Stokes KA, Trewartha G, Doyle J, Hogben P, Thompson D. (2010). Effects of carbohydrate and caffeine ingestion on performance during a rugby union simulation protocol. Journal of sports sciences.28(8):833-42.
  24. Scott AT, O’Leary T, Walker S, Owen R, Scott A. (2014). Caffeinated carbohydrate gel ingestion improves 2000 metre rowing performance. Int J Sports Physiol Perform.10:464-8.
  25. Sökmen B, Armstrong LE, Kraemer WJ, Casa DJ, Dias JC, Judelson DA, et al. (2008). Caffeine use in sports: Considerations for the athlete. The Journal of Strength & Conditioning Research.22(3):978-86.
  26. Strecker E. The effect of caffeine ingestion on tennis skill performance and hydration status 2007.
  27. Williams C, Rollo I. (2015). Carbohydrate nutrition and team sport performance. Sports Medicine.45(1):13-22.
  28. Wojcik JR, Walberg-Rankin J, Smith LL, Gwazdauskas F. (2001). Comparison of carbohydrate and milk-based beverages on muscle damage and glycogen following exercise. International journal of sport nutrition and exercise metabolism.11(4):406-19.
  29. Woolf K, Bidwell WK, Carlson AG. (2009). Effect of caffeine as an ergogenic aid during anaerobic exercise performance in caffeine naive collegiate football players. The Journal of Strength & Conditioning Research.23(5):1363-9.
  30. Woolf K, Bidwell WK, Carlson AG. (2008). The effect of caffeine as an ergogenic aid in anaerobic exercise. International journal of sport nutrition and exercise metabolism.18(4):412-29.