The effect of multi-ingredient intra- versus extra-cellular buffering supplementation combined with branched-chain amino acids and creatine on exercise-induced ammonia blood concentration and aerobic capacity in taekwondo athletes
Durkalec-Michalski K, Kusy K, Główka N, Zieliński J
Journal of the International Society of Sports Nutrition · 5 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
- 2021-01-02 · J Int Soc Sports Nutr · vol. 18 · número 1 · pág. 48
- Editorial
- Springer Science+Business Media
- Citado
- 6 citas · más que el 66% de estudios similares · 0.7× el promedio de su campo
- Referencias
- 59 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY
- Áreas de investigación
- Biochemical effects in animals · Muscle metabolism and nutrition · Sports Performance and Training
- Palabras clave
- taekwondo athletes, sodium bicarbonate, beta-alanine, branched-chain amino acids, blood ammonia, cardiorespiratory fitness, VO2max, body composition, blood lactate
- MeSH
- humans, sodium bicarbonate, ammonia, creatine, beta-alanine, amino acids, branched-chain, cross-over studies, double-blind method, adaptation, physiological, body composition, martial arts, dietary supplements, athletic performance, biomarkers
4 autores
- Krzysztof Durkalec‐Michalski🇵🇱 · autor de correspondenciaPoznań University of Life Sciences
- Krzysztof Kusy
- Natalia Główka🇵🇱Poznań University of Life Sciences
- Jacek Zieliński
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
This study aimed to investigate the effect of multi-ingredient intra- (BA) versus extra- (ALK) cellular buffering factor supplementation, combined with the customary intake of branched-chain amino acids (BCAA) and creatine malate (TCM), on body composition, exercise variables, and biochemical and hematological parameters in 9 elite taekwondo athletes.
Methods
Eight-week randomized double-blind crossover BA (5.0 g·day-1 of β-alanine) versus ALK (0.07 g·kgFFM-1·day-1 of sodium bicarbonate) supplementation combined with BCAA (0.2 g·kgFFM-1·day-1) and TCM (0.05 g·kgFFM-1·day-1) during a standard 8-week taekwondo training period was implemented. In the course of the experiment, body composition (dual X-ray absorptiometry), aerobic capacity (ergospirometric measurements during an incremental treadmill test until exhaustion), and exercise blood biomarkers concentrations were measured. Data were analyzed using repeated measures within-between interaction analysis of variance with the inclusion of experimental supplementation order.
Results
The maximum post-exercise blood ammonia concentration decreased in both groups after supplementation (from 80.3 ± 10.6 to 72.4 ± 10.2 µmol∙L-1, p = 0.013 in BA; from 81.4 ± 8.7 to 74.2 ± 8.9 µmol∙L-1, p = 0.027 in ALK), indicating reduced exercise-related adenosine triphosphate degradation. However, no differences were found in body composition, aerobic capacity, blood lactate concentration, and hematological parameters after neither BA (combined with BCAA and TCM) nor ALK (combined with BCAA and TCM) supplementation.
Conclusions
In highly trained taekwondo athletes, neither extra- nor intracellular buffering enhancement resulting from BA and ALK supplementation, combined with BCAA and TCM treatment, affects body mass and composition, maximum oxygen uptake, and hematological indices, even though certain advantageous metabolic adaptations can be observed.
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