Ingestion of an amino acid electrolyte beverage during resistance exercise does not impact fluid shifts into muscle or performance
Deutscher übersetzter Titel: | Zufuhr eines Aminosäure-Elektrolyt-Getränks während des Krafttrainings hat keinen Einfluss auf Flüssigkeitsverschiebungen in den Muskel oder die Leistung |
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Autor: | Smith, JohnEric William; Krings, Ben M.; Peterson, Timothy J.; Rountree, Jaden A.; Zak, Roksana B.; McAllister, Matthew J. |
Erschienen in: | Sports |
Veröffentlicht: | 5 (2017), 2, [9 S.], Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 2075-4663 |
DOI: | 10.3390/sports5020036 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201808005790 |
Quelle: | BISp |
Abstract des Autors
The purpose of this study was to investigate the impact of ingesting an amino acid-electrolyte (AAE) beverage during upper body resistance exercise on transient muscle hypertrophy, exercise performance, markers of muscle damage, and recovery. Participants (n = 15) performed three sets of six repetitions—bench press, lat pull down, incline press, and seated row—followed by three sets of eight repetitions at 75% of the estimated 1 repetition maximum—triceps kickback, hammer curl, triceps push down, and preacher curl—with 90 s of rest between sets. The final set of the push down/preacher curl was performed to failure. Prior to and immediately post-exercise, as well as 24, 48, and 72 h post exercise, cross-sectional muscle thickness was measured. Blood samples were collected prior to exercise, as well as 24, 48, and 72 h post-exercise for serum creatine kinase (CK) analysis. No treatment effect was found for muscle cross-sectional area, repetitions to failure, or serum CK. A main effect (p < 0.001) was observed in the change in serum CK levels in the days following the resistance exercise session. The findings of this study suggest that the acute ingestion of a AAE beverage does not alter acute muscle thickness, performance, perceived soreness and weakness, or markers of muscle damage.