The effects of supplementation with creatine and protein on muscle strength following a traditional resistance training program in middle-aged and older men
Bemben MG, Witten MS, Carter JM, Eliot KA, Knehans AW, Bemben DA
The journal of nutrition, health & aging · 83 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
- 2009-11-12 · J Nutr Health Aging · vol. 14 · número 2 · págs. 155–159
- Editorial
- Springer Science+Business Media
- Citado
- 121 citas · más que el 85% de estudios similares · 2.1× el promedio de su campo
- Referencias
- 53 trabajos
- Acceso
- Acceso abierto (revista híbrida) · CC-BY-NC-ND
- Áreas de investigación
- Muscle metabolism and nutrition · Nutrition and Health in Aging · Sports Performance and Training
- Palabras clave
- creatine supplementation, protein supplementation, whey protein, resistance training, muscle strength, one-repetition maximum, lean body mass, middle-aged men, older men, aging, progressive overload
- MeSH
- muscle, skeletal, humans, creatine, dietary proteins, milk proteins, double-blind method, task performance and analysis, body composition, aging, drug synergism, dietary supplements, aged, middle aged, male, muscle strength, resistance training, whey proteins
6 autores
- Michael G. Bemben🇺🇸 · autor de correspondenciaUniversity of Oklahoma
- Michael S. Witten🇺🇸University of Colorado Health
- J.M. Carter🇺🇸Norman Regional Hospital
- Kathrin A. Eliot🇺🇸University of Oklahoma Health Sciences Center; University of Oklahoma
- ALLEN W. KNEHANS🇺🇸University of Oklahoma Health Sciences Center; University of Oklahoma
- Debra A. Bemben🇺🇸University of Oklahoma
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objectives
Creatine and protein supplementation can enhance the training outcomes of young subjects, but it is not clear if there are benefits for older individuals. Therefore, the purpose of this study was to determine the effects of creatine and protein supplementation on strength gains following a traditional resistance training program for middle-aged and older men.
Design, setting, participants
This study assessed changes in strength of men aged 48-72 years following 14 weeks of resistance training supplemented with creatine and/or protein. A double-blind, randomized, placebo-controlled design placed 42 males into one of four groups: Resistance Trained Placebo (RTP, n=10); Resistance Trained Creatine (RTCr, 5g Cr, n=10); Resistance Trained Protein (RTPr, 35g whey Pr, n=11); or Resistance Trained Creatine and Protein (RTCrPr, 5g Cr and 35g Pr, n=11).
Intervention
All groups trained 3 days per week for 14 weeks. The resistance training program was based on progressive overload. Training loads corresponded to 80% 1 RM (one repetition maximum strength), 3 sets of 8 repetitions for the following exercises: knee extension/knee flexion; bicep curl/tricep extension; military press; lat pull down; seated leg press; and bench press.
Measurements
1 RM for each exercise and measures of lean body mass were assessed prior to and following the 14 week program.
Results
Each group significantly (p < 0.05) increased strength and lean body mass, however, there were no significant group effects or group X trial interactions.
Conclusion
Resistance training in middle-aged and older men significantly increased muscular strength and added muscle mass with no additional benefits from creatine and/or protein supplementation.
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