Amaç: Bu araştırmanın amacı; yüklenmeden 30 ve 60 dk önce gerçekleştirilen kafein takviyesinin düzenli olarak direnç antrenmanı yapan erkeklerin alt ve üst vücut kuvveti, dikey sıçrama yüksekliği, algılanan zorluk ve algılanan ağrı düzeylerine etkilerini incelemekti. Gereç ve Yöntemler: Araştırmaya, ağırlık antrenman deneyimli 45 erkek gönüllü olarak katıldı (yaş ortalamaları 25,20±7,71 yıl, vücut ağırlığı ortalamaları 78,53±9,31 kg, boy uzunluğu ortalamaları 177,46±6,54). Katılımcılar araştırma öncesinde rastgele 3 gruba ayrıldı: 1) Kafein 30 Grubu (KAF 30, n=15), 2) Kafein 60 Grubu (KAF 60, n=15), 3) Plasebo Grubu (PL, n=15). Vücut ağırlığı başına 5 mg/kg kafein takvi yesi 250 ml suya karıştırılarak testlerden 30 dk (KAF 30 için) veya 60 dk (KAF 60 için) önce uy gulandı. PL grubuna ise yapay tatlandırıcı ilave edilmiş 250 ml su içirildi. Katılımcılara kafein takviyesiz ve kafein takviyeli koşullarda, 1 tekrar maksimum back squat (1TM BS), 1 tekrar maksimum bench press (1TM BP) ve dikey sıçrama testleri ile Borg skalası ve sayısal ağrı ölçeği 2 kez uygulandı. Verilerin analizinde, karışık ölçümler için iki faktörlü ANOVA kullanıldı. Bulgular: Direnç antrenmanlı aktif erkeklerde kafein takviyesinin 1TM BP, 1TM BS ve dikey sıçrama performansını ve 1TM BP ve 1TM BS egzersizleri sonrasında algılanan zorluk ve algılanan ağrı düzeyini etkilemediği görüldü (p>0,05). Bunun yanı sıra, yüklenmeden 30 dk ve 60 dk önce kafein alımının maksimal kuvvet ve dikey sıçrama, aynı zamanda algılanan zorluk ve ağrı düzeylerini etkilemediği belirlendi. Sonuç: Egzersizden 30 dk ve 60 dk önce yapılan kafein takviyesiyle üst ve alt vücut kuvvetinde doğrusal artışlar görülmesine karşın kafein takviyesinin 1TM BP, 1TM BS ve dikey sıçrama performansını etkilemeyebileceği söylenebilir. KAF 30 grubunda görülen rakamsal gelişimler, kafein takviyesinin erken bir etkisinin işaretçisi olabilir.
Anahtar Kelimeler: Kafein; kafein alım zamanı; maksimal kuvvet; direnç antrenmanı
Objective: This study aimed to find out effects of caffeine intake 30 min and 60 min before each exercise trial on maximal strength and vertical jump in resistance-trained men. Material and Methods: Forty-five resistance-trained male volunteered to participate to the study (age: 25.20±7.71 year, body weight: 78.53±9.31 kg, height: 177.46±6.54). Subjects were randomly divided in three groups: 1) Caffeine intake 30 min before exercises (CAF 30, n=15), 2) Caffeine intake 60 min before exercises (CAF 60, n=15) and placebo (PL, n=15). One repetition maximum bench press (1RM BP), one repetition maximum back squat (1RM BS), vertical jump, rating of perceived exertion (RPE), and level of received pain were measured with/without caffeine intake two times. Subjects ingested 5 mg/kg powder caffeine with 250 mL water 30 min or 60 min before exercises. PL group ingested 250 mL water with artificial sweetener. A two-way repeated measures ANOVA was used for data analyses. Results: There was no significant effect of caffeine on 1RM BP, 1RM BS and vertical jump in resistance-trained men (p>0.05). Caffeine intake did not change RPE and level of received pain after 1RM BP, 1RM BS exercises (p>0.05). No significant difference was found in 1RM BP, 1RM BS, vertical jump, RPE and the level of received pain between CAF 30 and CAF 60 (p>0.05). Conclusion: It can be said that caffeine intake may not affect 1RM BP, 1RM BS and vertical jump height, although linear increases in upper and lower body strength were observed with caffeine supplementation 30 min and 60 min before exercise. The numerical improvements seen in the CAF 30 group may indicate an early effect of caffeine supplementation.
Keywords: Caffeine; caffeine intake time; maximal strength; resistance training
- Smith BD, Gupta U, Gupta BS. Caffeine and Activation Theory: Effects on Health and Behavior. Boca Raton, FL, USA: Taylor & Francis Group; 2007.[Crossref]
- Glade MJ. Caffeine-Not just a stimulant. Nutrition. 2010;26(10):932-8.[Crossref] [PubMed]
- Astorino TA, Roberson DW. Efficacy of acute caffeine ingestion for short-term high-intensity exercise performance: a systematic review. J Strength Cond Res. 2010;24(1):257-65.[Crossref] [PubMed]
- Blanchard J, Sawers SJ. The absolute bioavailability of caffeine in man. Eur J Clin Pharmacol. 1983;24(1):93-8.[Crossref] [PubMed]
- Schrader P, Panek LM, Temple JL. Acute and chronic caffeine administration increases physical activity in sedentary adults. Nutr Res. 2013;33(6):457-63.[Crossref] [PubMed]
- Burke LM. Caffeine and sports performance. Appl Physiol Nutr Metab. 2008;33(6):1319-34.[Crossref] [PubMed]
- Arazi H, Dehlavinejad N, Gholizadeh R. The acute effect of caffeine supplementation on strength, repetition sustainability and work volume of novice bodybuilders. Turk J Kin. 2016;2:43-8.[Link]
- Glaister M, Patterson SD, Foley P, Pedlar CR, Pattison JR, McInnes G. Caffeine and sprinting performance: dose responses and efficacy. J Strength Cond Res. 2012;26(4):1001-5.[Crossref] [PubMed]
- Graham TE. Caffeine and exercise: metabolism, endurance and performance. Sports Med. 2001;31(11):785-807.[Crossref] [PubMed]
- McLellan TM, Caldwell JA, Lieberman HR. A review of caffeine's effects on cognitive, physical and occupational performance. Neurosci Biobehav Rev. 2016;71:294-312.[Crossref] [PubMed]
- Tallis J, James RS, Cox VM, Duncan MJ. The effect of a physiological concentration of caffeine on the endurance of maximally and submaximally stimulated mouse soleus muscle. J Physiol Sci. 2013;63(2):125-32.[Crossref] [PubMed]
- Williams JH. Caffeine, neuromuscular function and high-intensity exercise performance. J Sports Med Phys Fitness. 1991;31(3):481-9.[PubMed]
- O'Rourke MP, O'Brien BJ, Knez WL, Paton CD. Caffeine has a small effect on 5-km running performance of well-trained and recreational runners. J Sci Med Sport. 2008;11(2):231-3.[Crossref] [PubMed]
- O'Connor PJ, Motl RW, Broglio SP, Ely MR. Dose-dependent effect of caffeine on reducing leg muscle pain during cycling exercise is unrelated to systolic blood pressure. Pain. 2004;109(3):291-8.[Crossref] [PubMed]
- Maridakis V, O'Connor PJ, Dudley GA, McCully KK. Caffeine attenuates delayed-onset muscle pain and force loss following eccentric exercise. J Pain. 2007;8(3):237-43.[Crossref] [PubMed]
- Arazi H, Hoseinihaji M, Eghbali E. The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes. Brazilian Journal of Pharmaceutical Sciences. 2016;52(4):685-92.[Crossref]
- Ganio MS, Klau JF, Casa DJ, Armstrong LE, Maresh CM. Effect of caffeine on sport-specific endurance performance: a systematic review. J Strength Cond Res. 2009;23(1):315-24.[Crossref] [PubMed]
- Cox GR, Desbrow B, Montgomery PG, Anderson ME, Bruce CR, Macrides TA, et al. Effect of different protocols of caffeine intake on metabolism and endurance performance. J Appl Physiol (1985). 2002;93(3):990-9.[Crossref] [PubMed]
- Cureton KJ, Warren GL, Millard-Stafford ML, Wingo JE, Trilk J, Buyckx M. Caffeinated sports drink: ergogenic effects and possible mechanisms. Int J Sport Nutr Exerc Metab. 2007;17(1):35-55.[Crossref] [PubMed]
- Hodgson AB, Randell RK, Jeukendrup AE. The metabolic and performance effects of caffeine compared to coffee during endurance exercise. PLoS One. 2013;8(4):e59561.[Crossref] [PubMed] [PMC]
- San Juan AF, López-Samanes Á, Jodra P, Valenzuela PL, Rueda J, Veiga-Herreros P, et al. Caffeine supplementation improves anaerobic performance and neuromuscular efficiency and fatigue in olympic-level boxers. Nutrients. 2019;11(9):2120.[Crossref] [PubMed] [PMC]
- Jodra P, Lago-Rodríguez A, Sánchez-Oliver AJ, López-Samanes A, Pérez-López A, Veiga-Herreros P, et al. Effects of caffeine supplementation on physical performance and mood dimensions in elite and trained-recreational athletes. J Int Soc Sports Nutr. 2020;17(1):2.[Crossref] [PubMed] [PMC]
- Beck TW, Housh TJ, Schmidt RJ, Johnson GO, Housh DJ, Coburn JW, et al. The acute effects of a caffeine-containing supplement on strength, muscular endurance, and anaerobic capabilities. J Strength Cond Res. 2006;20(3):506-10.[Crossref] [PubMed]
- Pickering C, Grgic J. Caffeine and Exercise: What Next? Sports Med. 2019;49(7):1007-30.[Crossref] [PubMed] [PMC]
- Grgic J. Caffeine ingestion enhances Wingate performance: a meta-analysis. Eur J Sport Sci. 2018;18(2):219-25.[Crossref] [PubMed]
- Grgic J, Trexler ET, Lazinica B, Pedisic Z. Effects of caffeine intake on muscle strength and power: a systematic review and meta-analysis. J Int Soc Sports Nutr. 2018;15:11.[Crossref] [PubMed] [PMC]
- Grgic J, Grgic I, Pickering C, Schoenfeld BJ, Bishop DJ, Pedisic Z. Wake up and smell the coffee: caffeine supplementation and exercise performance-an umbrella review of 21 published meta-analyses. Br J Sports Med. 2020;54(11):681-8.[Crossref] [PubMed]
- Warren GL, Park ND, Maresca RD, McKibans KI, Millard-Stafford ML. Effect of caffeine ingestion on muscular strength and endurance: a meta-analysis. Med Sci Sports Exerc. 2010;42(7):1375-87.[Crossref] [PubMed]
- Polito MD, Souza DB, Casonatto J, Farinatti P. Acute effect of caffeine consumption on isotonic muscular strength and endurance: A systematic review and meta-analysis. Science and Sports. 2016;31(3):119-28.[Crossref]
- Astorino TA, Rohmann RL, Firth K. Effect of caffeine ingestion on one-repetition maximum muscular strength. Eur J Appl Physiol. 2008;102(2):127-32.[Crossref] [PubMed]
- Sökmen B, Armstrong LE, Kraemer WJ, Casa DJ, Dias JC, Judelson DA, et al. Caffeine use in sports: considerations for the athlete. J Strength Cond Res. 2008;22(3):978-86.[Crossref] [PubMed]
- Burke L, Desbrow B, Spriet L. Caffeine for Sports Performance. 1st ed. Champaing, IL: Human Kinetics; 2013.[Crossref]
- Karayiğit R, Yaşlı BÇ, Karabıyık H, Koz M, Ersöz G. [Effect of low dose caffeinated coffee on anaerobic power in physically active males]. SPORMETRE Beden Eğitimi ve Spor Bilimleri Dergisi. 2017;15(4):157-64.[Link]
- Kara Z, Taşkın H, Erkmen N, Baştürk D. [Effects of caffeine intake on short-term high-intensity exercise: caffeine intake time]. Journal of Sport and Performance Researches. 2019;10(1):31-43.[Link]
- Quinlan P, Lane J, Aspinall L. Effects of hot tea, coffee and water ingestion on physiological responses and mood: the role of caffeine, water and beverage type. Psychopharmacology (Berl). 1997;134(2):164-73.[Crossref] [PubMed]
- Talanian JL, Spriet LL. Low and moderate doses of caffeine late in exercise improve performance in trained cyclists. Appl Physiol Nutr Metab. 2016;41(8):850-5.[Crossref] [PubMed]
- Grgic J, Mikulic P. Caffeine ingestion acutely enhances muscular strength and power but not muscular endurance in resistance-trained men. Eur J Sport Sci. 2017;17(8):1029-36.[Crossref] [PubMed]
- Duncan MJ, Smith M, Cook K, James RS. The acute effect of a caffeine-containing energy drink on mood state, readiness to invest effort, and resistance exercise to failure. J Strength Cond Res. 2012;26(10):2858-65.[Crossref] [PubMed]
- Harman E, Garhammer J. Administration, scoring, and interpretation of selected tests. In: Baechle TR, Earle RW, eds. Essentials of Strength training and Conditioning. 3rd ed. Champaign IL: Human Kinetics; 2008.
- Beachle TR, Earle RW, Wathen D. Resistance training. In: Baechle TR, Earle RW, eds. Essentials of Strength Training and Conditioning. 3rd ed. Champaign IL: Human Kinetics; 2008.
- Borg G. Perceived exertion as an indicator of somatic stress. Scand J Rehabil Med. 1970;2(2):92-8.[PubMed]
- Hadjistavropoulos T, Herr K, Turk DC, Fine PG, Dworkin RH, Helme R, et al. An interdisciplinary expert consensus statement on assessment of pain in older persons. Clin J Pain. 2007;23(1 Suppl):S1-43.[Crossref] [PubMed]
- Erdoğan O, Erhan SE, Şen İ, Eroğlu H. [The effect of different usage of caffeine on the metabolism of sportsmen]. ATABESBD. 2009;11(4):21-8.[Link]
- Astorino TA, Martin BJ, Schachtsiek L, Wong K, Ng K. Minimal effect of acute caffeine ingestion on intense resistance training performance. J Strength Cond Res. 2011;25(6):1752-8.[Crossref] [PubMed]
- Woolf K, Bidwell WK, Carlson AG. The effect of caffeine as an ergogenic aid in anaerobic exercise. Int J Sport Nutr Exerc Metab. 2008;18(4):412-29.[Crossref] [PubMed]
- Anselme F, Collomp K, Mercier B, Ahmaïdi S, Prefaut C. Caffeine increases maximal anaerobic power and blood lactate concentration. Eur J Appl Physiol Occup Physiol. 1992;65(2):188-91.[Crossref] [PubMed]
- Beck TW, Housh TJ, Malek MH, Mielke M, Hendrix R. The acute effects of a caffeine-containing supplement on bench press strength and time to running exhaustion. J Strength Cond Res. 2008;22(5):1654-8.[Crossref] [PubMed]
- Kalmar JM, Cafarelli E. Effects of caffeine on neuromuscular function. J Appl Physiol (1985). 1999;87(2):801-8.[Crossref] [PubMed]
- Ali A, O'Donnell J, Foskett A, Rutherfurd-Markwick K. The influence of caffeine ingestion on strength and power performance in female team-sport players. J Int Soc Sports Nutr. 2016;13:46.[Crossref] [PubMed] [PMC]
- Goldstein E, Jacobs PL, Whitehurst M, Penhollow T, Antonio J. Caffeine enhances upper body strength in resistance-trained women. J Int Soc Sports Nutr. 2010;7:18.[Crossref] [PubMed] [PMC]
- Woolf K, Bidwell WK, Carlson AG. Effect of caffeine as an ergogenic aid during anaerobic exercise performance in caffeine naïve collegiate football players. J Strength Cond Res. 2009;23(5):1363-9.[Crossref] [PubMed]
- Bell DG, McLellan TM. Exercise endurance 1, 3, and 6 h after caffeine ingestion in caffeine users and nonusers. J Appl Physiol (1985). 2002;93(4):1227-34.[Crossref] [PubMed]
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