The Effects of Caffeine, Taurine, or Caffeine-Taurine Coingestion on Repeat-Sprint Cycling Performance and Physiological Responses
Warnock R, Jeffries O, Patterson S, Waldron M
International journal of sports physiology and performance · 32 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2017-03-24 · Int J Sports Physiol Perform · vol. 12 · número 10 · págs. 1341–1347
- Editorial
- Human Kinetics
- Citado
- 64 citas · más que el 95% de estudios similares · 4.4× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 32 trabajos
- Acceso
- Lectura gratuita
- Áreas de investigación
- Coffee research and impacts · Aldose Reductase and Taurine · Pharmacology and Obesity Treatment
- Palabras clave
- Sprint, Taurine, Caffeine, Heart rate, Crossover study, Cycling, Anaerobic exercise, Blood pressure, Animal science, Placebo, Wingate test, Time trial, Medicine, Internal medicine, Chemistry, Endocrinology, Physical therapy, Biology, Biochemistry
- MeSH
- humans, taurine, caffeine, exercise test, cross-over studies, single-blind method, ergometry, blood pressure, heart rate, bicycling, athletic performance, physical exertion, young adult
4 autores
- Rory Warnock🇬🇧St Mary's University Twickenham London
- Owen Jeffries🇬🇧St Mary's University Twickenham London
- Stephen David Patterson🇬🇧St Mary's University Twickenham London
- Mark Waldron🇦🇺🇬🇧 · autor de correspondenciaUniversity of Technology Sydney; St Mary's University Twickenham London; University of New England
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
To investigate the effects of caffeine (C), taurine (T), caffeine and taurine coingestion (C +T), or placebo (P) on repeated Wingate cycling performance and associated physiological responses.
Methods
Seven male team-sport players participated in a randomized, single-blind, crossover study, where they completed 3 Wingate tests, each separated by 2 min, an hour after ingesting: C (5 mg/kg body mass [BM]), T (50 mg/kg BM), C +T (5 mg/kg BM + 50 mg/kg BM), or P (5 mg/kg BM) in a gelatin capsule. Performance was measured on an ergometer, and blood lactate, perceived exertion, heart rate (HR), mean arterial pressure (MAP), and rate pressure product (RPP) were measured at rest (presupplement), baseline (1 h postsupplement), and during and after exercise.
Results
Magnitude-based inferences revealed that all of the supplements increased (small to moderate, likely to very likely) mean peak power (MPP), peak power (PP), and mean power (MP) compared to P, with greater MPP, PP, and MP in T compared to C (small, possible). Intrasprint fatigue index (%FIIntra) was greater in T compared to P and C (moderate, likely), and %FIInter was lower in T compared to C (small, possible). C and C +T increased HR, MAP, and RPP compared to P and T at baseline (moderate to very large, likely to most likely); however, these only remained higher in C compared to all conditions in the final sprint.
Conclusions
T elicited greater improvements in performance compared to P, C, or C +T while reducing the typical chronotropic and pressor effects of C.
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