Combined but Not Isolated Ingestion of Caffeine and Taurine Improves Wingate Sprint Performance in Female Team-Sport Athletes Habituated to Caffeine

Sports

Bryan Saunders¹  Juan Del Coso²  Alireza Naderi³  Erfan Berjisian⁴  Scott C. Forbes⁵  Raci Karayigit⁶  Ulas Can Yildirim⁶  Katsuhiko Suzuki⁷ 

[1] Applied Physiology and Nutrition Research Group, School of Physical Education and Sport, Rheumatology Division, Faculdade de Medicina FMUSP, University of Sao Paulo, Sao Paulo 01246-903, Brazil;Centre for Sport Studies, Rey Juan Carlos University, 28043 Fuenlabrada, Spain;Department of Exercise Physiology, Borujerd Branch, Islamic Azad University, Borujerd 6915136111, Iran;Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Tehran University, Tehran 1417935840, Iran;Department of Physical Education Studies, Brandon University, Brandon, MB R7A6A9, Canada;Faculty of Sport Sciences, Ankara University, Gölbaşı 06830, Turkey;Faculty of Sport Sciences, Waseda University, Totorozawa 359-1192, Japan;

关键词: anaerobic capacity;    high-intensity exercise performance;    ergogenic aids;    intermittent exercise;   

DOI  :  10.3390/sports9120162

来源: DOAJ

【 摘 要 】

Previous studies have investigated caffeine (CAF) and taurine (TAU) in isolation and combined during exercise in males. However, the potential synergistic effect during high-intensity exercise remains unknown in female athletes. Seventeen female team-sport athletes participated (age: 23.4 ± 2.1 years; height: 1.68 ± 0.05 m; body mass: 59.5 ± 2.2 kg). All participants were habitual caffeine consumers (340.1 ± 28.6 mg/day). A double-blind randomized crossover design was used. Participants completed four experimental trials: (i) CAF and TAU (6 mg/kg body mass of CAF + 1 g of TAU), (ii) CAF alone; (iii) TAU alone; and (iv) placebo (PLA). Supplements were ingested 60 min before a 30-s Wingate Anaerobic Test (WAnT). Heart rate and blood lactate (BL) were measured before and immediately after the WAnT; and ratings of perceived exertion (RPE) were recorded immediately after the WAnT. Peak power (PP) was significantly higher following co-ingestion of CAF+TAU compared to PLA (p = 0.03) and TAU (p = 0.03). Mean power (MP) was significantly higher following co-ingestion of CAF+TAU compared to PLA (p = 0.01). No other differences were found between conditions for PP and MP (p > 0.05). There were also no observed differences in fatigue index (FI), BL; heart rate; and RPE between conditions (p > 0.05). In conclusion, compared to PLA the combined ingestion of 6 mg/kg of CAF and 1 g of TAU improved both PP and MP in female athletes habituated to caffeine; however; CAF and TAU independently failed to augment WAnT performance.

【 授权许可】

Unknown