Creatine Supplementation Increases Total Body Water in Soccer Players: a Deuterium Oxide Dilution Study
Deminice R, Rosa FT, Pfrimer K, Ferrioli E, Jordao AA, Freitas E
International journal of sports medicine · 16 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
- Gobierno
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Según 1 financiador declarado.
Publicación
- Publicado
- 2015-10-28 · Int J Sports Med · vol. 37 · número 02 · págs. 149–153
- Editorial
- Thieme Medical Publishers (Germany)
- Citado
- 23 citas · más que el 73% de estudios similares · 0.9× el promedio de su campo
- Referencias
- 0 trabajos
- Acceso
- De pago
- Áreas de investigación
- Muscle metabolism and nutrition · Body Composition Measurement Techniques · Sports Performance and Training
- Palabras clave
- creatine supplementation, total body water, soccer players, deuterium dilution, bioelectrical impedance analysis, hydration, weight change, youth athletes
- MeSH
- body water, humans, body weight, deuterium oxide, creatine, double-blind method, indicator dilution techniques, electric impedance, soccer, dietary supplements, adolescent, male
6 autores
- Rafael Deminice🇧🇷Universidade Estadual de Londrina
- F. Rosa🇧🇷Universidade de São Paulo
- Karina Pfrimer🇧🇷Universidade de São Paulo
- Eduardo Ferrioli🇧🇷Universidade de São Paulo
- Alceu Afonso Jordão🇧🇷Universidade de São Paulo
- Ellen Cristini de Freitas🇧🇷Universidade de São Paulo
Resumen
El texto original del estudio, en el idioma en que se publicó.
This study aimed to evaluate changes in total body water (TBW) in soccer athletes using a deuterium oxide dilution method and bioelectrical impedance (BIA) formulas after 7 days of creatine supplementation. In a double-blind controlled manner, 13 healthy (under-20) soccer players were divided randomly in 2 supplementation groups: Placebo (Pla, n=6) and creatine supplementation (CR, n=7). Before and after the supplementation period (0.3 g/kg/d during 7 days), TBW was determined by deuterium oxide dilution and BIA methods. 7 days of creatine supplementation lead to a large increase in TBW (2.3±1.0 L) determined by deuterium oxide dilution, and a small but significant increase in total body weight (1.0±0.4 kg) in Cr group compared to Pla. The Pla group did not experience any significant changes in TBW or body weight. Although 5 of 6 BIA equations were sensitive to determine TBW changes induced by creatine supplementation, the Kushner et al. 16 method presented the best concordance levels when compared to deuterium dilution method. In conclusion, 7-days of creatine supplementation increased TBW determined by deuterium oxide dilution or BIA formulas. BIA can be useful to determine TBW changes promoted by creatine supplementation in soccer athletes, with special concern for formula choice.
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