The Effect of Tapering Period with and without Creatine Supplementation on Hormonal Responses of male football Players
محورهای موضوعی : فیزیولوژی ورزشی
Ebrahim Fallah
1
,
Pegah Hooshangi
2
,
Mohmmad Jahangiri
3
1 - Ph.D. of Exercise Physiology, Exercise Physiology Research Center, Tarbiat Modares University, Tehran, Iran.
2 - Ph.D. of Exercise Physiology, Instructor of Sports Physiology Department, Islamic Azad University, North Tehran Branch, Tehran, Iran.
3 - Ph.D. Student in Exercise Physiology, Department of Sport Science, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran.
کلید واژه: Taper, Anabolic hormones, Katabolic hormones, Elite soccer players.,
چکیده مقاله :
Background: The aim of this study was to examine the effects of a tapering period with creatine supplementation on hormonal responses of men football players. Materials and Methods: The study sample included 18 male soccer players of the first division league (mean age: 18.77 ± 1.26 years, height: 174.5± 5.77 cm, and weight: 64.07± 6.99 kg) that were in the specific conditioning period who were randomly divided into two equal groups: Taper alone (n=9) and Taper with creatine supplementation (n=9). The levels of blood hormonal parameters including testosterone, cortisol and testosterone to cortisol ratio (T/C) were measured before and after the tapering period (10 days). Paired t-test and independent T-test was used to examine the differences within and between groups, respectively. Results: The results showed that the cortisol levels in the post-test compared to the pre-test decreased significantly in both groups (p≤0.05) ; While, there was no significant difference in testosterone and T/C (p≥0.05). Also, no significant difference was observed in the levels of testosterone, cortisol and T/C between the two groups. Conclusion: The taper period can reduce the cortisol levels of male soccer players, but creatine consumption has no significant effect on the levels of cortisol, testosterone and T/C ratio in the taper period.
Background: The aim of this study was to examine the effects of a tapering period with creatine supplementation on hormonal responses of men football players. Materials and Methods: The study sample included 18 male soccer players of the first division league (mean age: 18.77 ± 1.26 years, height: 174.5± 5.77 cm, and weight: 64.07± 6.99 kg) that were in the specific conditioning period who were randomly divided into two equal groups: Taper alone (n=9) and Taper with creatine supplementation (n=9). The levels of blood hormonal parameters including testosterone, cortisol and testosterone to cortisol ratio (T/C) were measured before and after the tapering period (10 days). Paired t-test and independent T-test was used to examine the differences within and between groups, respectively. Results: The results showed that the cortisol levels in the post-test compared to the pre-test decreased significantly in both groups (p≤0.05) ; While, there was no significant difference in testosterone and T/C (p≥0.05). Also, no significant difference was observed in the levels of testosterone, cortisol and T/C between the two groups. Conclusion: The taper period can reduce the cortisol levels of male soccer players, but creatine consumption has no significant effect on the levels of cortisol, testosterone and T/C ratio in the taper period.
1. Serrano J, Shahidian S, Sampaio J, Leite N. The importance of sports performance factors and training contents from the perspective of futsal coaches. J Hum Kinet. 2013 Oct 8; 38:151-60. doi: 10.2478/hukin-2013-0055. PMID: 24235991; PMCID: PMC3827762.
2. Amiri-Khorasani M, Mohammadkazemi R, Sarafrazi S, Riyahi-Malayeri S, Sotoodeh V. Kinematics analyses related to stretch-shortening cycle during soccer instep kicking after different acute stretching. J Strength Cond Res. 2012 Nov;26(11):3010-7. doi: 10.1519/JSC.0b013e3182443442. PMID: 22158101.
3. Shirvani, H., Riyahi malayeri, S., Akbarpour Bani, M., Kazemzadeh, Y. (2013). 'The Effects of Taurine Supplementation with High Intensity Intermittent Exercise on Serum IL-6 and TNF-α in Well-Trained Soccer Players', Journal of Sport Biosciences, 5(2), pp. 59-79. doi: 10.22059/jsb.2013.35040
4. Chmura P, Podgórski T, Konefał M, Rokita A, Chmura J, Andrzejewski M. Endocrine Responses to Various 1 × 1 Small-Sided Games in Youth Soccer Players. Int J Environ Res Public Health. 2019 Dec 6;16(24):4974. doi: 10.3390/ijerph16244974. PMID: 31817816; PMCID: PMC6950523.
5. Bellinger P. Functional Overreaching in Endurance Athletes: A Necessity or Cause for Concern? Sports Med. 2020 Jun;50(6):1059-1073. doi: 10.1007/s40279-020-01269-w. PMID: 32064575.
6. Handziski Z, Maleska V, Petrovska S, Nikolik S, Mickoska E, Dalip M, Kostova E. The changes of ACTH, cortisol, testosterone and testosterone/cortisol ratio in professional soccer players during a competition half-season. Bratisl Lek Listy. 2006;107(6-7):259-63. PMID: 17051905.
7. Manchado M, Sampaio-Jorge F, Dias N, Knifis FW. Effect of oral creatine supplementation in soccer players metabolism. Int J of Sport Sci. 2008; 10(4): 44-58. doi: 10.5232/ricyde.
8. Ghoochani S, Riyahi Malayeri S, Daneshjo A. Short-term effect of Citrulline Malate supplement on LDH and Lactate levels and Resistance Exercise Performance. J Mil Med 2020; 22 (S1): 154-162.URL: http://militarymedj.ir/article-1-2669-en.html.
9. Stølen T, Chamari K, Castagna C, Wisløff U. Physiology of soccer: an update. Sports Med. 2005;35(6):501-36. doi: 10.2165/00007256-200535060-00004. PMID: 15974635.
10. Mujika I, Goya A, Padilla S, Grijalba A, Gorostiaga E, Ibañez J. Physiological responses to a 6-d taper in middle-distance runners: influence of training intensity and volume. Med Sci Sports Exerc. 2000 Feb;32(2):511-7. doi: 10.1097/00005768-200002000-00038. PMID: 10694140.
11. Mujika I, Goya A, Ruiz E, Grijalba A, Santisteban J, Padilla S. Physiological and performance responses to a 6-day taper in middle-distance runners: influence of training frequency. Int J Sports Med. 2002 Jul;23(5):367-73. doi: 10.1055/s-2002-33146. PMID: 12165889.
12. Stølen T, Chamari K, Castagna C, Wisløff U. Physiology of soccer: an update. Sports Med. 2005;35(6):501-36. doi: 10.2165/00007256-200535060-00004. PMID: 15974635.
13. Riyahi Malayeri, Shahin, Mousavi Sadati, Seyed Kazem, Effect of beta-alanine supplementation on carnosine amount and muscle strength of the upper and lower extremities of bodybuilding athletes. Journal of Sports Physiology and Athletic Conditioning, 2021;1(1):11-20. doi: 10.52547/jspac.19831.1.1.11
14. Wax B, Kerksick CM, Jagim AR, Mayo JJ, Lyons BC, Kreider RB. Creatine for Exercise and Sports Performance, with Recovery Considerations for Healthy Populations. Nutrients. 2021 Jun 2;13(6):1915. doi: 10.3390/nu13061915. PMID: 34199588; PMCID: PMC8228369.
15. Stølen T, Chamari K, Castagna C, Wisløff U. Physiology of soccer: an update. Sports Med. 2005;35(6):501-36. doi: 10.2165/00007256-200535060-00004. PMID: 15974635.
16. Butts J, Jacobs B, Silvis M. Creatine Use in Sports. Sports Health. 2018 Jan/Feb;10(1):31-34. doi: 10.1177/1941738117737248. Epub 2017 Oct 23. PMID: 29059531; PMCID: PMC5753968.
17. Wax B, Kerksick CM, Jagim AR, Mayo JJ, Lyons BC, Kreider RB. Creatine for Exercise and Sports Performance, with Recovery Considerations for Healthy Populations. Nutrients. 2021 Jun 2;13(6):1915. doi: 10.3390/nu13061915. PMID: 34199588; PMCID: PMC8228369. 23.
18. Volek JS, Ratamess NA, Rubin MR, Gómez AL, French DN, McGuigan MM, Scheett TP, Sharman MJ, Häkkinen K, Kraemer WJ. The effects of creatine supplementation on muscular performance and body composition responses to short-term resistance training overreaching. Eur J Appl Physiol. 2004 May;91(5-6):628-37. doi: 10.1007/s00421-003-1031-z. Epub 2003 Dec 18. PMID: 14685870.
19. Mujika I. The influence of training characteristics and tapering on the adaptation in highly trained individuals: a review. Int J Sports Med. 1998 Oct;19(7):439-46. doi: 10.1055/s-2007-971942. PMID: 9839839.
20. Steinacker JM, Lormes W, Kellmann M, Liu Y, Reissnecker S, Opitz-Gress A, Baller B, Günther K, Petersen KG, Kallus KW, Lehmann M, Altenburg D. Training of junior rowers before world championships. Effects on performance, mood state and selected hormonal and metabolic responses. J Sports Med Phys Fitness. 2000 Dec;40(4):327-35. PMID: 11297003.
21. Costill DL, Thomas R, Robergs RA, Pascoe D, Lambert C, Barr S, Fink WJ. Adaptations to swimming training: influence of training volume. Med Sci Sports Exerc. 1991 Mar;23(3):371-7. PMID: 2020277.
22. Dressendorfer RH, Petersen SR, Moss Lovshin SE, Hannon JL, Lee SF, Bell GJ. Performance enhancement with maintenance of resting immune status after intensified cycle training. Clin J Sport Med. 2002 Sep;12(5):301-7. doi: 10.1097/00042752-200209000-00008. PMID: 12394203.
23. Hoffman JR, Stout JR, Falvo MJ, Kang J, Ratamess NA. Effect of low-dose, short-duration creatine supplementation on anaerobic exercise performance. J Strength Cond Res. 2005 May;19(2):260-4. doi: 10.1519/15484.1. PMID: 15903359
24. Lac G, Berthon P. Changes in cortisol and testosterone levels and T/C ratio during an endurance competition and recovery. J Sports Med Phys Fitness. 2000 Jun;40(2):139-44. PMID: 11034434.
25. Martínez AC, Seco Calvo J, Tur Marí JA, Abecia Inchaurregui LC, Orella EE, Biescas AP. Testosterone and cortisol changes in professional basketball players through a season competition. J Strength Cond Res. 2010 Apr;24(4):1102-8. doi: 10.1519/JSC.0b013e3181ce2423. PMID: 20375720.
