Creatine supplementation improves the anaerobic performance of elite junior fin swimmers
Juhász I, Györe I, Csende Z, Rácz L, Tihanyi J
Acta physiologica Hungarica · 20 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
- 2009-08-25 · Acta Physiol Hung · vol. 96 · número 3 · págs. 325–336
- Editorial
- Akadémiai Kiadó
- Citado
- 36 citas · más que el 65% de estudios similares · 0.5× el promedio de su campo
- Referencias
- 42 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Biochemical effects in animals
- Palabras clave
- creatine supplementation, creatine monohydrate, fin swimming, anaerobic performance, mechanical power output, youth athletes, Bosco test, lactate, dynamic strength, lower limb muscles
- MeSH
- lower extremity, muscle, skeletal, humans, body weight, creatine, lactic acid, administration, oral, double-blind method, task performance and analysis, heart rate, physical endurance, swimming, time factors, dietary supplements, adolescent, male, muscle strength, young adult
5 autores
- Imre Juhász🇭🇺Eszterhazy Karoly Catholic University
- István Györe
- Zsolt Csende🇭🇺Semmelweis University
- Levente Rácz🇭🇺Semmelweis University
- József Tihanyi🇭🇺Semmelweis University
Resumen
El texto original del estudio, en el idioma en que se publicó.
The objective of this study was to determine whether creatine supplementation (CrS) could improve mechanical power output, and swimming performance in highly trained junior competitive fin swimmers. Sixteen male fin swimmers (age:15.9+/-1.6 years) were randomly and evenly assigned to either a creatine (CR, 4x5 g/day creatine monohydrate for 5 days) or placebo group (P, same dose of a dextrose-ascorbic acid placebo) in a double-blind research. Before and after CrS the average power output was determined by a Bosco-test and the swimming time was measured in two maximal 100 m fin swims. After five days of CrS the average power of one minute continuous rebound jumps increased by 20.2%. The lactate concentration was significantly less after 5 minutes restitution at the second measurement in both groups. The swimming time was significantly reduced in both first (pre: 50.69+/-1.41 s; post: 48.86+/-1.34 s) and second (pre: 50.39+/-1.38 s; post: 48.53+/-1.35 s) sessions of swimming in CR group, but remained almost unchanged in the P group.The results of this study indicate that five day Cr supplementation enhances the dynamic strength and may increase anaerobic metabolism in the lower extremity muscles, and improves performance in consecutive maximal swims in highly trained adolescent fin swimmers.
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