Acute Effects of Combined and Isolated Caffeine and Theanine Supplementation on Physical and Cognitive Performance in Competitive Athletes: A Randomized, Double-Blind, Placebo-Controlled Crossover Study
Yazarlar (10)
Doç. Dr. Selin Yıldırım Tuncer Lokman Hekim Üniversitesi, Türkiye
Doç. Dr. Serhat ÖZDENK Sinop Üniversitesi, Türkiye
Doç. Dr. Ulaş Can YILDIRIM Sinop Üniversitesi, Türkiye
Dilara Erkan Türkiye
Cengizhan Sarı Muş Alparslan Üniversitesi, Türkiye
Arş. Gör. Mehmet Can GÜNDEM Sinop Üniversitesi, Türkiye
Dr. Öğr. Üyesi Halit ŞAR Sinop Üniversitesi, Türkiye
Büşra Yılmaz
Prof. Dr. İzzet Karakulak Türkiye
Prof. Dr. Fırat Akça Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | FRONTIERS IN NUTRITION (Q1) | ||
| Dergi ISSN | 2296-861X Dergi Bilgileri (2026) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2026 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 26-01-2026 |
| Cilt / Sayı / Sayfa | 12 / 0 / – | DOI | 10.3389/fnut.2025.1751673 |
| Makale Linki | https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1751673/abstract | ||
| UAK Araştırma Alanları |
Antrenman Bilimi
Sporcu Beslenmesi
Ergojenik Yardım ve Doping
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| Özet |
| Introduction Modern athletic performance is driven not only by physical capacity but also by rapid decision-making, attentional control, and visuomotor coordination. Evidence regarding the acute effects of caffeine (CAF), L-theanine (TEA), and their combination remains inconsistent, particularly with respect to their combined influence on physical and cognitive performance in athletic populations. This study examined the acute effects of isolated and combined CAF and TEA supplementation on maximal strength, intermittent aerobic endurance, and eye–hand coordination in competitive athletes. It was hypothesized that the combined ingestion of CAF and TEA would differentially affect physical performance and eye-hand coordination outcomes compared with isolated CAF or TEA intake. Methods Twenty trained athletes completed four randomized, double-blind, placebo-controlled crossover conditions: CAF (3 mg·kg … |
| Anahtar Kelimeler |
| caffeine | cognitive performance | co-supplementation | isometric strength | L-theanine |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 1 |
| Google Scholar | 3 |