Creatine Enhances the Effects of Cluster-Set Resistance Training on Lower-Limb Body Composition and Strength in Resistance-Trained Men: A Pilot Study
Bonilla DA, Kreider RB, Petro JL, Romance R, García-Sillero M, Benítez-Porres J, Vargas-Molina S
Nutrients · 22 citas
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- Ensayo controlado aleatorizado (indexado por PubMed)
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- Posiblemente financiado por la industria
- Universidad u hospital
- University of Wales Trinity Saint David
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Publicación
- Publicado
- 2021-07-04 · Nutrients · vol. 13 · número 7 · pág. 2303
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 34 citas · más que el 87% de estudios similares · 2.1× el promedio de su campo
- Referencias
- 67 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Muscle metabolism and nutrition · Sports Performance and Training · Exercise and Physiological Responses
- Palabras clave
- Resistance training, Composition (language), Strength training, Physical medicine and rehabilitation, Resistance (ecology), Creatine, Cluster (spacecraft), Medicine, Physical therapy, Biology, Internal medicine, Computer science, Ecology
- MeSH
- lower extremity, muscle, skeletal, adipose tissue, humans, creatine, absorptiometry, photon, exercise, pilot projects, body composition, dietary supplements, adult, male, muscle strength, resistance training, young adult, performance-enhancing substances, diet, high-protein
7 autores
- Diego A. Bonilla🇪🇸🇨🇴 · autor de correspondenciaUniversity of the Basque Country; University of Córdoba; Universidad Distrital Francisco José de Caldas
- Richard B. Kreider🇺🇸Texas A&M University
- Jorge Luis Petro🇨🇴University of Córdoba
- Ramón Romance🇪🇸Universidad de Málaga
- Manuel García-Sillero
- Javier Benítez‐Porres🇪🇸Universidad de Málaga
- Salvador Vargas-Molina🇪🇸Universidad de Málaga
Resumen
El texto original del estudio, en el idioma en que se publicó.
Creatine monohydrate (CrM) supplementation has been shown to improve body composition and muscle strength when combined with resistance training (RT); however, no study has evaluated the combination of this nutritional strategy with cluster-set resistance training (CS-RT). The purpose of this pilot study was to evaluate the effects of CrM supplementation during a high-protein diet and a CS-RT program on lower-limb fat-free mass (LL-FFM) and muscular strength. Twenty-three resistance-trained men (>2 years of training experience, 26.6 ± 8.1 years, 176.3 ± 6.8 cm, 75.6 ± 8.9 kg) participated in this study. Subjects were randomly allocated to a CS-RT+CrM (n = 8), a CS-RT (n = 8), or a control group (n = 7). The CS-RT+CrM group followed a CrM supplementation protocol with 0.1 g·kg-1·day-1 over eight weeks. Two sessions per week of lower-limb CS-RT were performed. LL-FFM corrected for fat-free adipose tissue (dual-energy X-ray absorptiometry) and muscle strength (back squat 1 repetition maximum (SQ-1RM) and countermovement jump (CMJ)) were measured pre- and post-intervention. Significant improvements were found in whole-body fat mass, fat percentage, LL-fat mass, LL-FFM, and SQ-1RM in the CS-RT+CrM and CS-RT groups; however, larger effect sizes were obtained in the CS-RT+CrM group regarding whole body FFM (0.64 versus 0.16), lower-limb FFM (0.62 versus 0.18), and SQ-1RM (1.23 versus 0.75) when compared to the CS-RT group. CMJ showed a significant improvement in the CS-RT+CrM group with no significant changes in CS-RT or control groups. No significant differences were found between groups. Eight weeks of CrM supplementation plus a high-protein diet during a CS-RT program has a higher clinical meaningfulness on lower-limb body composition and strength-related variables in trained males than CS-RT alone. Further research might study the potential health and therapeutic effects of this nutrition and exercise strategy.
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