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Journals / Yalova Üniversitesi Spor Bilimleri Dergisi / 2026 / Cilt: 5 Sayı: 1

Acute Effects of Caffeine Supplementation on Agility, Strength, and Neuromuscular Performance in Tennis Players: A Randomized Controlled Trial

Tenis Oyuncularında Kafein Takviyesinin Çeviklik, Güç ve Nöromüsküler Performans Üzerindeki Akut Etkileri: Randomize Kontrollü Bir Çalışma

Yaşar Köroğlu(SİVAS CUMHURİYET ÜNİVERSİTESİ, SPOR BİLİMLERİ FAKÜLTESİ, ANTRENÖRLÜK EĞİTİMİ BÖLÜMÜ)0000-0003-4662-3353
Samet Sitti(SİİRT ÜNİVERSİTESİ)0000-0002-8014-915X
Doğukan Batur Alp Gülşen(AYDIN ADNAN MENDERES ÜNİVERSİTESİ)0000-0001-9434-619X
Pages
454–468
Publication Date
2026-03-19
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

These task-specific benefits suggest potential for targeted use in tennis, warranting further research on dosing, individual variability, and chronic effects in elite athletes.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This study aimed to address these gaps by evaluating the acute effects of 400 mg of caffeine on anaerobic performance, agility, balance, and strength in trained tennis players.
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Key Findings & Data:This randomized parallel-group controlled trial, compliant with CONSORT guidelines, involved 29 trained undergraduate tennis players (aged 18–23 years).
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Conclusion & Impact:These task-specific benefits suggest potential for targeted use in tennis, warranting further research on dosing, individual variability, and chronic effects in elite athletes.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Kafein · Ergogenik yardım · Çeviklik

Abstract

This study aimed to address these gaps by evaluating the acute effects of 400 mg of caffeine on anaerobic performance, agility, balance, and strength in trained tennis players. This randomized parallel-group controlled trial, compliant with CONSORT guidelines, involved 29 trained undergraduate tennis players (aged 18–23 years). Participants were randomized to an experimental group (n=14, 400 mg oral caffeine 30–60 min pre-post-testing) or a control group (n=15, no supplementation). Pre- and post-tests, 48 hours apart, assessed balance (Flamingo test), explosive power (standing long jump), agility (pro-agility test), sprint speed (30 m sprint), grip strength (Takei dynamometer), and leg/back strength (Takei dynamometer). Mixed-model ANOVA analysed group × time interactions, followed by paired and independent t-tests, with significance at p 0.05). The control group exhibited no changes (all p > 0.05). Between-group post-test comparisons were non-significant (p > 0.05), with a moderate effect for agility (d = 0.48). Acute 400 mg caffeine supplementation selectively enhances agility and back strength in tennis players, likely via heightened neuromuscular activation and force production. These task-specific benefits suggest potential for targeted use in tennis, warranting further research on dosing, individual variability, and chronic effects in elite athletes.

Özet

Bu çalışma, antrenmanlı tenisçilerde 400 mg kafeinin anaerobik performans, çeviklik, denge ve güç üzerindeki akut etkilerini değerlendirerek bu boşlukları gidermeyi amaçlamıştır. CONSORT kılavuzlarına uygun olarak yürütülen bu randomize paralel grup kontrollü çalışma, 29 eğitimli üniversite tenisçisini (18-23 yaş) içermektedir. Katılımcılar, deney grubu (n=14, testten 30-60 dakika önce ve sonra 400 mg oral kafein verilmesi) veya kontrol grubu (n=15, takviye verilmez) olarak randomize edilmiştir. 48 saat arayla yapılan test öncesi ve sonrası değerlendirmelerde denge (Flamingo testi), patlayıcı güç (ayakta uzun atlama), çeviklik (pro-çeviklik testi), sprint hızı (30 m sprint), kavrama gücü (Takei dinamometre) ve bacak/sırt gücü (Takei dinamometre) ölçülmüştür. Grup × zaman etkileşimlerini analiz etmek için karışık model ANOVA kullanıldı, ardından eşleştirilmiş ve bağımsız t-testleri uygulandı. Anlamlılık p 0,05). Kontrol grubunda herhangi bir değişiklik görülmedi (p > 0,05). Gruplar arası test sonrası karşılaştırmalar anlamlı değildi (p > 0,05), çeviklikte orta derecede bir etki görüldü (d = 0,48). Sonuç: 400 mg akut kafein takviyesi, muhtemelen nöromüsküler aktivasyon ve kuvvet üretiminin artması yoluyla tenis oyuncularının çevikliğini ve sırt gücünü seçici olarak artırır. Bu göreve özgü faydalar, teniste hedefe yönelik kullanım potansiyelini ortaya koymakta ve elit sporcularda dozaj, bireysel değişkenlik ve kronik etkiler konusunda daha fazla araştırma yapılmasını gerektirmektedir.

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Cite This Article

Köroğlu, Y., Sitti, S., Gülşen, D. B. A. (2026). Acute Effects of Caffeine Supplementation on Agility, Strength, and Neuromuscular Performance in Tennis Players: A Randomized Controlled Trial. Yalova Üniversitesi Spor Bilimleri Dergisi, Cilt: 5 Sayı: 1, 454–468. https://doi.org/10.70007/yalovaspor.1873327

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References (40)

  1. Astorino, T. A., & Roberson, D. W. (2010). Efficacy of acute caffeine ingestion for short-term high-intensity exercise performance: A systematic review. Journal of Strength and Conditioning Research, 24(1), 257–265. https://doi.org/10.1519/JSC.0b013e3181c1f88a
  2. Astorino, T. A., Rohmann, R. L., & Firth, K. (2008). Effect of caffeine ingestion on one-repetition maximum muscular strength. European Journal of Applied Physiology, 102(2), 127–132. https://doi.org/10.1007/s00421-007-0557-x
  3. Arazi, H., Dehlavinejad, N., & Gholizadeh, R. (2016). The acute effect of caffeine supplementation on strength, repetition sustainability and work volume of novice bodybuilders. Turkish Journal of Kinesiology, 2(3), 43–48.
  4. Batista-da-Silva, B., Limirio, L. S., & de Oliveira, E. P. (2024). Association between caffeine metabolites in urine and muscle strength in young and older adults: A cross-sectional study from NHANES 2011–2012. Clinical Nutrition, 43(6), 1584–1592. https://doi.org/10.1016/j.clnu.2024.05.004
  5. Bashir, S. F., Nuhmani, S., Dhall, R., & Muaidi, Q. I. (2019). Effect of core training on dynamic balance and agility among Indian junior tennis players. Journal of Back and Musculoskeletal Rehabilitation, 32(2), 245–252. https://doi.org/10.3233/BMR-170853
  6. Bazzucchi, I., Felici, F., Montini, M., Figura, F., & Sacchetti, M. (2011). Caffeine improves neuromuscular function during maximal dynamic exercise. Muscle & Nerve, 43(6), 839–844. https://doi.org/10.1002/mus.21995
  7. Beck, T. W., Housh, T. J., Schmidt, R. J., Johnson, G. O., Housh, D. J., Coburn, J. W., & Malek, M. H. (2006). The acute effects of a caffeine-containing supplement on strength, muscular endurance, and anaerobic capabilities. Journal of Strength and Conditioning Research, 20(3), 506–510. https://doi.org/10.1519/18285.1
  8. Bell, D. G., & McLellan, T. M. (2002). Exercise endurance 1, 3, and 6 h after caffeine ingestion in caffeine users and nonusers. Journal of Applied Physiology, 93(4), 1227–1234. https://doi.org/10.1152/japplphysiol.00187.2002
  9. Carpes, F. P., Reinehr, F. B., & Mota, C. B. (2008). Effects of a program for trunk strength and stability on pain, low back and pelvis kinematics, and body balance: A pilot study. Journal of Bodywork and Movement Therapies, 12(1), 22–30. https://doi.org/10.1016/j.jbmt.2007.05.001
  10. Chia, J. S., Barrett, L. A., Chow, J. Y., & Burns, S. F. (2017). Effects of caffeine supplementation on performance in ball games. Sports Medicine, 47(12), 2453–2471. https://doi.org/10.1007/s40279-017-0763-6
  11. Çıldır, B., Altın, B., & Aksoy, S. (2021). Caffeine enhances the balance system and postural balance in short time in healthy individuals. Turkish Archives of Otorhinolaryngology, 59(4), 253–260. https://doi.org/10.4274/tao.2021.2021-4-17
  12. Del Coso, J., Portillo, J., Muñoz, G., Abián-Vicén, J., Gonzalez-Millán, C., & Muñoz-Guerra, J. (2013). Caffeine-containing energy drink improves sprint performance during an international rugby sevens competition. Amino Acids, 44(6), 1511–1519. https://doi.org/10.1007/s00726-013-1473-5
  13. Duncan, M. J., Smith, M., Cook, K., & James, R. S. (2012). The acute effect of a caffeine-containing energy drink on mood state, readiness to invest effort, and resistance exercise to failure. Journal of Strength and Conditioning Research, 26(10), 2858–2865. https://doi.org/10.1519/JSC.0b013e318241e124
  14. Faul, F., Erdfelder, E., Lang, A.-G., & Buchner, A. (2007). G*Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behavior Research Methods, 39(2), 175–191. https://doi.org/10.3758/BF03193146
  15. Fernandez-Fernandez, J., Ulbricht, A., & Ferrauti, A. (2014). Fitness testing of tennis players: How valuable is it? British Journal of Sports Medicine, 48(Suppl 1), i22–i31. https://doi.org/10.1136/bjsports-2013-093152
  16. Forster, J. W., Uthoff, A. M., Rumpf, M. C., & Cronin, J. B. (2022). Pro-agility unpacked: Variability, comparability and diagnostic value. International Journal of Sports Science & Coaching, 17(5), 1225–1240.
  17. 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. https://doi.org/10.1249/MSS.0b013e31817a8ad2
  18. Graham, T. E. (2001). Caffeine and exercise: Metabolism, endurance and performance. Sports Medicine, 31(11), 785–807. https://doi.org/10.2165/00007256-200131110-00002
  19. Guest, N. S., VanDusseldorp, T. A., Nelson, M. T., Grgic, J., Schoenfeld, B. J., Jenkins, N. D. M., … Campbell, B. I. (2021). International society of sports nutrition position stand: Caffeine and exercise performance. Journal of the International Society of Sports Nutrition, 18(1), Article 1. https://doi.org/10.1186/s12970-020-00383-4
  20. Ivy, J. L., Costill, D. L., Fink, W. J., & Lower, R. W. (1979). Influence of caffeine and carbohydrate feedings on endurance performance. Medicine and Science in Sports, 11(1), 6–11.
  21. Jakobsen, M. D., Sundstrup, E., Krustrup, P., & Aagaard, P. (2011). The effect of recreational soccer training and running on postural balance in untrained men. European Journal of Applied Physiology, 111(3), 521–530. https://doi.org/10.1007/s00421-010-1669-2
  22. Jordan, J. B., Korgaokar, A., Farley, R. S., Coons, J. M., & Caputo, J. L. (2014). Caffeine supplementation and reactive agility in elite youth soccer players. Pediatric Exercise Science, 26(2), 168–176. https://doi.org/10.1123/pes.2013-0134
  23. Kovacs, M. S. (2007). Tennis physiology: Training the competitive athlete. Sports Medicine, 37(3), 189–198. https://doi.org/10.2165/00007256-200737030-00001
  24. Lorino, A. J., Lloyd, L. K., Crixell, S. H., & Walker, J. L. (2006). The effects of caffeine on athletic agility. Journal of Strength and Conditioning Research, 20(4), 851–854. https://doi.org/10.1519/R-17445.1
  25. Marin-Jimenez, N., Perez-Bey, A., Cruz-Leon, C., Conde-Caveda, J., Segura-Jimenez, V., Castro-Piñero, J., & Cuenca-Garcia, M. (2024). Criterion-related validity and reliability of the standing long jump test in adults: The Adult-Fit project. European Journal of Sport Science, 24(9), 1379–1392. https://doi.org/10.1002/ejsc.12182
  26. McArdle, W. D., Katch, F. I., & Katch, V. L. (2010). Exercise physiology: Nutrition, energy, and human performance. Lippincott Williams & Wilkins.
  27. McLellan, T. M., Caldwell, J. A., & Lieberman, H. R. (2016). A review of caffeine’s effects on cognitive, physical and occupational performance. Neuroscience & Biobehavioral Reviews, 71, 294–312. https://doi.org/10.1016/j.neubiorev.2016.09.001
  28. Meeusen, R., Roelands, B., & Spriet, L. L. (2013). Caffeine, exercise and the brain. Nestlé Nutrition Institute Workshop Series, 76, 1–12. https://doi.org/10.1159/000350223
  29. Pickering, C., & Kiely, J. (2018). Are the current guidelines on caffeine use in sport optimal for everyone? Inter-individual variation in caffeine ergogenicity, and a move towards personalised sports nutrition. Sports Medicine, 48(1), 7–16. https://doi.org/10.1007/s40279-017-0776-1
  30. Pluim, B. M., Miller, S., Dines, D., Renström, P. A., Windler, G., Norris, B., … Martin, K. (2007). Sport science and medicine in tennis. British Journal of Sports Medicine, 41(11), 703–704. https://doi.org/10.1136/bjsm.2007.040865
  31. Polito, M. D., Souza, D. B., Casonatto, J., & Farinatti, P. (2016). Acute effect of caffeine consumption on isotonic muscular strength and endurance: A systematic review and meta-analysis. Science & Sports, 31(3), 119–128.
  32. Rakovic, E., Paulsen, G., Helland, C., Eriksrud, O., & Haugen, T. (2018). The effect of individualised sprint training in elite female team sport athletes: A pilot study. Journal of Sports Sciences, 36(24), 2802–2808. https://doi.org/10.1080/02640414.2018.1474536
  33. Roetert, E. P., Kovacs, M., Knudson, D., & Groppel, J. L. (2009). Biomechanics of the tennis groundstrokes: Implications for strength training. Strength & Conditioning Journal, 31(4), 41–49.
  34. Sainbayar, E. (2016). Effects of caffeine capsules on dynamic and static balance. Journal of Physical Therapy Science, 28(2), 483–486.
  35. Schulz, K. F., Altman, D. G., Moher, D., & CONSORT Group. (2010). CONSORT 2010 statement: Updated guidelines for reporting parallel group randomised trials. BMJ, 340, c332. https://doi.org/10.1136/bmj.c332
  36. Spriet, L. L. (2014). Exercise and sport performance with low doses of caffeine. Sports Medicine, 44(Suppl 2), S175–S184. https://doi.org/10.1007/s40279-014-0257-8
  37. Tarnopolsky, M. A. (2008). Effect of caffeine on the neuromuscular system: Potential as an ergogenic aid. Applied Physiology, Nutrition, and Metabolism, 33(6), 1284–1289. https://doi.org/10.1139/H08-121
  38. Urhausen, A., & Kindermann, W. (2002). Diagnosis of overtraining: What tools do we have? Sports Medicine, 32(2), 95–102. https://doi.org/10.2165/00007256-200232020-00002
  39. Warren, G. L., Park, N. D., Maresca, R. D., McKibans, K. I., & Millard-Stafford, M. L. (2010). Effect of caffeine ingestion on muscular strength and endurance: A meta-analysis. Medicine & Science in Sports & Exercise, 42(7), 1375–1387. https://doi.org/10.1249/MSS.0b013e3181cabbd8
  40. Yang, A., Palmer, A. A., & de Wit, H. (2010). Genetics of caffeine consumption and responses to caffeine. Psychopharmacology, 211(3), 245–257. https://doi.org/10.1007/s00213-010-1900-1