The Acute Effect of Various Doses of Caffeine on Power Output and Velocity during the Bench Press Exercise among Athletes Habitually Using Caffeine
Wilk M, Filip A, Krzysztofik M, Maszczyk A, Zajac A
Nutrients · 28 citas
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 independiente
- Universidad u hospital
- Akademia Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
Según 1 financiador declarado y la declaración de financiación del texto completo.
Publicación
- Publicado
- 2019-06-27 · Nutrients · vol. 11 · número 7 · pág. 1465
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 48 citas · más que el 95% de estudios similares · 4.7× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 71 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Coffee research and impacts · Pharmacology and Obesity Treatment · Muscle metabolism and nutrition
- Palabras clave
- Bench press, Caffeine, Crossover study, Athletes, Medicine, Placebo, Analysis of variance, Physical therapy, Animal science, Repeated measures design, Internal medicine, Mathematics, Resistance training, Statistics
- MeSH
- humans, caffeine, central nervous system stimulants, treatment outcome, cross-over studies, double-blind method, habits, time factors, adult, poland, male, muscle strength, resistance training, young adult, athletes
5 autores
- Michał Wilk🇵🇱 · autor de correspondenciaAkademii Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
- Aleksandra Filip-Stachnik🇵🇱Akademii Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
- Michał Krzysztofik🇵🇱Akademii Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
- Adam Maszczyk🇵🇱Akademii Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
- Adam Zając🇵🇱Akademii Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Previously studies confirm ergogenic effects of caffeine (CAF); however there is no available scientific data regarding the influence of acute CAF intake on power output in athletes habitually consuming CAF. The main goal of this study was to assess the acute effect of 3, 6, 9 mg/kg/b.m. doses of CAF intake on power output and bench press bar velocity in athletes habitually consuming CAF.
Methods
The study included 15 healthy strength-trained male athletes (age = 26.8 ± 6.2 years, body mass = 82.6 ± 9.7 kg; BMI = 24.8 ± 2.7; bench press 1RM = 122.3 ± 24.5 kg). All participants were habitual caffeine consumers (5.2 ± 1.2 mg/kg/b.m.; 426 ± 102 mg of caffeine per day). This study had a randomized, crossover, double-blind study design where each participant performed four different experimental sessions, with one week interval between each trial. In every experimental session participants performed bench press, three sets of five repetitions at 50% 1RM. The power output and bar velocity assessments under four different conditions: a placebo (PLAC), and three doses of caffeine ingestion: 3 mg/kg/b.m. (CAF-3), 6 mg/kg/b.m. (CAF-6) and 9 mg/kg/b.m. (CAF-9).
Results
The statistical significance was set at p < 0.05. The repeated measures ANOVA between PLAC and CAF-3; CAF-6; CAF-9 revealed no statistically significant differences in power output and velocity of the bar during the bench press exercise. A large effect size (ES) in mean power-output was found between PLAC and CAF-9 in Sets 1 and 2. A large ES in peak power-output was found between PLAC and CAF-6 in Set 2, and between PLAC and CAF-9 in Sets 1 and 2. A large ES in peak velocity was found between PLAC and CAF-9 in Sets 1-3.
Conclusion
The results of the present study indicate that acute doses of CAF before exercise does not have a significant effect on power output and bar velocity in a group of habitual caffeine users.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY).
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