Acute creatine supplementation and performance during a field test simulating match play in elite female soccer players
Cox G, Mujika I, Tumilty D, Burke L
International journal of sport nutrition and exercise metabolism · 57 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
- 2002-03-01 · Int J Sport Nutr Exerc Metab · vol. 12 · número 1 · págs. 33–46
- Editorial
- Human Kinetics
- Citado
- 110 citas · más que el 75% de estudios similares · 1.3× el promedio de su campo
- Referencias
- 0 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine supplementation, acute supplementation, female soccer players, repeated sprint performance, agility, shooting accuracy, weight gain, elite athletes
- MeSH
- muscle, skeletal, humans, body weight, creatine, lactic acid, phosphocreatine, exercise test, double-blind method, heart rate, hydrogen-ion concentration, soccer, dietary supplements, adult, female
4 autores
- Gregory R. Cox🇦🇺ACT Government
- Iñigo Mujika
- Douglas Tumilty
- Louise M. Burke
Resumen
El texto original del estudio, en el idioma en que se publicó.
This study investigated the effects of acute creatine (Cr) supplementation on the performance of elite female soccer players undertaking an exercise protocol simulating match play. On two occasions, 7 days apart, 12 players performed 5 x 11-min exercise testing blocks interspersed with 1 min of rest. Each block consisted of 11 all-out 20-m running sprints, 2 agility runs, and 1 precision ball-kicking drill, separated by recovery 20-m walks,jogs, and runs. After the initial testing session, subjects were assigned to either a CREATINE (5 g of Cr, 4 times per day for 6 days) or a PLACEBO group (same dosage of a glucose polymer) using a double-blind research design. Body mass (BM) increased (61.7 +/- 8.9 to 62.5 < or = 8.9 kg, p < .01) in the CREATINE group; however, no change was observed in the PLACEBO group (63.4 < or = 2.9 kg to 63.7 +/- 2.5 kg). No overall change in 20-m sprint times and agility run times were observed, although the CREATINE group achieved faster post-supplementation times in sprints 11, 13, 14, 16, 21, 23, 25, 32, and 39 (p <.05), and agility runs 3, 5, and 8 (p < .05). The accuracy of shooting was unaffected in both groups. In conclusion, acute Cr supplementation improved performance of some repeated sprint and agility tasks simulating soccer match play, despite an increase in BM.
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