The effects of beta alanine plus creatine administration on performance during repeated bouts of supramaximal exercise in sedentary men
Okudan N, Belviranli M, Pepe H, Gökbel H
The Journal of sports medicine and physical fitness · 7 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
- 2015-11-01 · J Sports Med Phys Fitness · vol. 55 · número 11 · págs. 1322–8
- Editorial
- National Institutes of Health
- Citado
- 9 citas · más que el 60% de estudios similares · 0.2× el promedio de su campo
- Referencias
- 0 trabajos
- Acceso
- De pago
- Áreas de investigación
- Biochemical effects in animals · Muscle metabolism and nutrition · Sports Performance and Training
- Palabras clave
- alanine, creatine supplementation, supramaximal exercise, repeated bout effect, fatigue, peak power, average power, Wingate test, sedentary men, untrained men, exercise performance, creatine kinase, muscle creatine kinase, creatine kinase isoenzymes, creatine kinase activity, creatine
- MeSH
- humans, creatine, lactic acid, beta-alanine, placebos, exercise test, exercise, double-blind method, psychomotor performance, anaerobic threshold, muscle fatigue, dietary supplements, male, muscle strength, young adult, sedentary behavior
4 autores
- Nilsel Okudan🇹🇷Selçuk University
- Muaz Belviranlı
- Hamdi Pepe
- Hakkı Gökbel
Resumen
El texto original del estudio, en el idioma en que se publicó.
Aim
The aim of this study was to investigate the effects of beta alanine and/or creatine supplementation on performance during repeated bouts of supramaximal exercise in sedentary men.
Methods
Forty-four untrained healthy men (aged 20-22 years, weight: 68-72 kg, height: 174-178 cm) participated in the present study. After performing the Wingate Test (WAnT) for three times in the baseline exercise session, the subjects were assigned to one of four treatment groups randomly: 1) placebo (P; 10 g maltodextrose); 2) creatine (Cr; 5 g creatine plus 5 g maltodextrose); 3) beta-alanine (β-ALA; 1,6 g beta alanine plus 8,4 g maltodextrose); and 4) beta-alanine plus creatine (β-ALA+Cr; 1,6 g beta alanine plus 5 g creatine plus 3,4 g maltodextrose). Participants were given the supplements orally twice a day for 22 consecutive days, then four times a day for the following 6 days. After 28 days, the second exercise session was applied during which peak power (PP) and mean power (MP) were measured and fatigue index (FI) was calculated.
Results
PP and MP decreased and FI increased in all groups during exercise before and after the treatment. During the postsupplementation session PP2 and PP3 increased in creatine supplemented group (from 642.7±148.6 to 825.1±205.2 in PP2 and from 522.9±117.5 to 683.0±148.0 in PP3, respectively). However, MP increased in β-ALA+Cr during the postsupplementation compared to presupplementation in all exercise sessions (from 586.2±55.4 to 620.6±49.6 in MP1, from 418.1±37.2 to 478.3±30.3 in MP2 and from 362.0±41.3 to 399.1±3 in MP3, respectively). FI did not change with beta alanine and beta alanine plus creatine supplementation during the postsupplementation exercise session.
Conclusion
Beta-alanine and beta alanine plus creatine supplementations have strong performance enhancing effect by increasing mean power and delaying fatigue Index during the repeated WAnT.
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