Effect of Ten Weeks of Creatine Monohydrate Plus HMB Supplementation on Athletic Performance Tests in Elite Male Endurance Athletes
Fernández-Landa J, Fernández-Lázaro D, Calleja-González J, Caballero-García A, Córdova Martínez A, León-Guereño P, Mielgo-Ayuso J
Nutrients · 26 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
Según la declaración de financiación del texto completo.
Publicación
- Publicado
- 2020-01-10 · Nutrients · vol. 12 · número 1 · pág. 193
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 44 citas · más que el 88% de estudios similares · 2.3× el promedio de su campo
- Referencias
- 70 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Exercise and Physiological Responses
- Palabras clave
- Placebo, Anaerobic exercise, Creatine, Medicine, Rowing, Blood lactate, Elite athletes, Athletes, Time trial, Animal science, Physical therapy, Internal medicine, Biology, Heart rate, Blood pressure
- MeSH
- muscle, skeletal, humans, creatine, valerates, double-blind method, body composition, oxygen consumption, anaerobic threshold, physical endurance, dietary supplements, adult, male, muscle strength, athletic performance, athletes
7 autores
- Julen Fernández-Landa🇪🇸University of the Basque Country
- Diego Fernández‐Lázaro🇪🇸Universidad de Valladolid
- Julio Calleja-González🇪🇸University of the Basque Country
- Alberto Caballero-García🇪🇸Universidad de Valladolid
- Alfredo C Cordova🇪🇸Universidad de Valladolid
- Patxi León-Guereño🇪🇸Universidad de Deusto
- Juan Mielgo‐Ayuso🇪🇸 · autor de correspondenciaUniversidad de Valladolid
Resumen
El texto original del estudio, en el idioma en que se publicó.
Creatine monohydrate (CrM) and β-hydroxy β-methylbutyrate (HMB) are common ergogenic aids in the field of sports and are frequently used in an isolated way. However, there are a few studies that have investigated the effect of combining both supplements on different variables related to performance, with controversial results. Therefore, the main purpose of this study was to determine the efficacy and the degree of potentiation of 10 weeks of CrM plus HMB supplementation on sports performance, which was measured by an incremental test to exhaustion in elite male traditional rowers. In this placebo-controlled, double-blind trial, 10-week study, participants (n = 28) were randomized to a placebo group (PLG; n = 7), CrM group (0.04 g/kg/day of CrM; n = 7), HMB group (3 g/day of HMB; n = 7) and CrM-HMB group (0.04 g/kg/day of CrM plus 3 g/day of HMB; n = 7). Before and after 10 weeks of different treatments, an incremental test was performed on a rowing ergometer to calculate the power that each rower obtained at the anaerobic threshold (WAT), and at 4 mmol (W4) and 8 mmol (W8) of blood lactate concentration. There were no significant differences in WAT and W4 among groups or in body composition. However, it was observed that the aerobic power achieved at W8 was significantly higher in the CrM-HMB group than in the PLG, CrM and HMB groups (p p = 0.766). Likewise, a synergistic effect of combined supplementation was found for the sum of the two supplements separately at WAT (CrM-HMBG = 403.19% vs. CrMG+HMBG = 337.52%), W4 (CrM-HMBG = 2736.17% vs. CrMG+HMBG = 1705.32%) and W8 (CrM-HMBG = 1293.4% vs. CrMG+HMBG = 877.56%). In summary, CrM plus HMB supplementation over 10 weeks showed a synergistic effect on aerobic power (measured as WAT, W4, and W8) during an incremental test but had no influence muscle mass.
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