The Effect of Beta-Alanine versus Alkaline Agent Supplementation Combined with Branched-Chain Amino Acids and Creatine Malate in Highly-Trained Sprinters and Endurance Athletes: A Randomized Double-Blind Crossover Study
Durkalec-Michalski K, Kusy K, Ciekot-Sołtysiak M, Zieliński J
Nutrients · 7 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
- Ministerstwo Edukacji i Nauki
- Gobierno
- Ministerstwo Nauki i Szkolnictwa Wyższego
- Subvenciones
- Ministerstwo Edukacji i Nauki (RSA3 03653)
Según 2 financiadores declarados y la declaración de financiación del texto completo.
Publicación
- Publicado
- 2019-08-21 · Nutrients · vol. 11 · número 9 · pág. 1961
- Editorial
- Multidisciplinary Digital Publishing Institute
- Citado
- 17 citas · más que el 80% de estudios similares · 1.3× el promedio de su campo
- Referencias
- 81 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Biochemical effects in animals · Muscle metabolism and nutrition · Sports Performance and Training
- Palabras clave
- beta-alanine, alkaline agents, branched-chain amino acids, sports supplementation, sprinters, endurance athletes, fat-free mass, cardiorespiratory fitness, blood ammonia, blood lactate, exercise adaptation, body composition
- MeSH
- humans, creatine, beta-alanine, amino acids, branched-chain, drug therapy, combination, cross-over studies, double-blind method, physical endurance, dietary supplements, adolescent, adult, female, male, athletic performance, young adult, athletes
4 autores
- Krzysztof Durkalec‐Michalski🇵🇱 · autor de correspondenciaPoznań University of Life Sciences
- Krzysztof Kusy
- Monika Ciekot-Sołtysiak
- Jacek Zieliński
Resumen
El texto original del estudio, en el idioma en que se publicó.
The study aimed to verify the effect of intra- (beta-alanine-BA) versus extra- (alkaline agents-ALK) cellular buffering agent supplementation, combined with customarily used branched-chain amino acids (BCAAs) and creatine malate (TCM) treatment in natural training conditions. Thirty-one elite athletes (11 sprinters and 20 endurance athletes) participated in the study. Eight-week randomized double-blind, crossover, combined supplementation with BA-ALKplaBCAA&TCM and ALK-BAplaBCAA&TCM was implemented. In the course of the experiment, body composition, aerobic capacity, and selected blood markers were assayed. After BA-ALKplaBCAA&TCM supplementation, total fat-free mass increased in sprinters (p = 0.009). No other differences were found in body composition, respiratory parameters, aerobic capacity, blood lactate concentration, and hematological indices after BA-ALKplaBCAA&TCM/ALK-BAplaBCAA&TCM supplementation. The maximum post-exercise blood ammonia (NH3) concentration decreased in both groups after BA-ALKplaBCAA&TCM supplementation (endurance, p = 0.002; sprint, p 3 concentrations were observed in endurance athletes in the post-exercise recovery period. The results of our study indicate that combined BCAA, TCM, and BA supplementation is more effective than combined BCAA, TCM and ALK supplementation for an increase in fat-free mass and exercise adaptation, but not for aerobic capacity improvement. Besides, it seems that specific exercise stimuli and the training status are key factors affecting exercise performance, even in athletes using efficient supplementation.
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