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

Autor(es)

Karayigit, Raci ^[1] ; Naderi, Alireza ^[2] ; Saunders, Bryan ^[3] ; Forbes, Scott C. ^[4] ; Coso, Juan Del ^[5] ; Berjisian, Erfan ^[6] ; Yildirim, Ulas Can ^{[1, 7]} ; Suzuki, Katsuhiko ^[8]

Afiliação do(s) autor(es)

^[1] Ankara Univ, Fac Sport Sci, TR-06830 Golbasi - Turkey

^[2] Islamic Azad Univ, Borujerd Branch, Dept Exercise Physiol, Borujerd 6915136111 - Iran

^[3] Univ Sao Paulo, Sch Phys Educ & Sport, Rheumatol Div, Appl Physiol & Nutr Res Grp, Fac Med FMUSP, BR-01246903 Sao Paulo - Brazil

^[4] Brandon Univ, Dept Phys Educ Studies, Brandon, MB R7A 6A9 - Canada

^[5] Rey Juan Carlos Univ, Ctr Sport Studies, Fuenlabrada 28043 - Spain

^[6] Univ Tehran, Fac Phys Educ & Sport Sci, Dept Exercise Physiol, Tehran 1417935840 - Iran

^[7] Sinop Univ, Fac Sport Sci, TR-57000 Sinop - Turkey

^[8] Waseda Univ, Fac Sport Sci, Totorozawa 3591192 - Japan

• Tipo de documento: Artigo Científico
• Fonte: SPORTS; v. 9, n. 12 DEC 2021.
• Citações Web of Science: 0

Resumo

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. (AU)

• Processo FAPESP: 16/50438-0 - Suplementação nutricional e exercício para otimizar o desempenho: foco nas respostas individuais e um passo para a nutrição esportiva personalizada
• Beneficiário: Bryan Saunders
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores