Creatine supplementation and sprint performance in soccer players
Mujika I, Padilla S, Ibañez J, Izquierdo M, Gorostiaga E
Medicine and science in sports and exercise · 70 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
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
- 2000-02-01 · Med Sci Sports Exerc · vol. 32 · número 2 · pág. 518
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 168 citas · más que el 85% de estudios similares · 2.1× el promedio de su campo
- Referencias
- 52 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine supplementation, soccer players, repeated sprint performance, intermittent endurance, countermovement jump, recovery performance, high-intensity exercise, acute supplementation
- MeSH
- humans, ammonia, creatine, lactic acid, creatinine, motor skills, physical endurance, exercise tolerance, running, soccer, dietary supplements, adult, male
5 autores
- Iñigo Mujika
- Sabino Padilla
- JAVIER IBA EZ
- Míkel Izquierdo
- Esteban M. Gorostiaga
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
This investigation examined the effects of creatine (Cr) supplementation on intermittent high-intensity exercise activities specific to competitive soccer.
Methods
On two occasions 7 d apart, 17 highly trained male soccer players performed a counter-movement jump test (CMJT), a repeated sprint test (RST) consisting of six maximal 15-m runs with a 30-s recovery, an intermittent endurance test (IET) consisting of forty 15-s bouts of high-intensity running interspersed by 10-s bouts of low-intensity running, and a recovery CMJT consisting of three jumps. After the initial testing session, players were evenly and randomly included in a CREATINE (5 g of Cr, four times per day for 6 d) or a PLACEBO group (same dosage of maltodextrins) using a double-blind research design.
Results
The CREATINE group's average 5-m and 15-m times during the RST were consistently faster after the intervention (0.95 +/- 0.03 vs 0.97 +/- 0.02 s, P < 0.05 and 2.29 +/- 0.08 vs 2.32 +/- 0.07 s, P = 0.07, respectively). Neither group showed significant changes in the CMJT or the IET. The CREATINE group's recovery CMJT performance relative to the resting CMJT remained unchanged postsupplementation, whereas it tended to decrease in the PLACEBO group.
Conclusion
In conclusion, acute Cr supplementation favorably affected repeated sprint performance and limited the decay in jumping ability after the IET in highly trained soccer players. Intermittent endurance performance was not affected by Cr.
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