Acute effect of caffeine ingestion on reaction time and electromyographic activity of the dollyo chagi round kick in taekwondo fighters

Vista sencilla de ítem
dc.contributor.authorCortez, Luis
dc.contributor.authorMackay, Karen
dc.contributor.authorContreras, Edwin
dc.contributor.authorPeñailillo, Luis
dc.date.accessioned2024-09-24T15:42:19Z
dc.date.available2024-09-24T15:42:19Z
dc.date.issued2017-01
dc.descriptionIndexación: Scopus
dc.description.abstractCaffeine is considered an enhancing aid and most consumed in sports, mainly due to its stimulant properties on the central nervous system, improving athletic performance and decreasing muscle fatigue. Objective: The aim of this study was to investigate the acute effect of caffeine on the reaction time and muscle activity of a Dollyo Chagi kick in taekwondo fighters. Methods: Thirteen taekwondo fighters ingested either 5 mg of caffeine per kg of body mass or a placebo. Reaction time and muscle activity were measured 60 min before the intake of caffeine or placebo, 60 min after ingestion and after a fatigue stimuli. Surface electromyogram (sEMG) amplitude, and time of reaction of the muscles rectus femoris, vastus lateralis, vastus medialis and biceps femoris during a circular kick related to a sound stimulus were measured. Results: Caffeine ingestion decreased the reaction time of the rectus femoris muscle 60-minutes after ingestion of caffeine and after strenuous stimulation (P<0.05). No significant decrease in reaction time was observed in other muscles. Furthermore, no changes in muscles activity in any other muscles were found. Conclusion: Caffeine supplementation in taekwondo athletes could reduce the reaction time of a Dollyo Chagi round kick after 60 minutes of ingestion and after a fatigue stimuli.
dc.description.urihttps://www.redalyc.org/journal/710/71049043005/html/
dc.identifier.citationRICYDE: Revista Internacional de Ciencias del Deporte Volume 13, Issue 47, Pages 52 - 62January 2017
dc.identifier.doi10.5232/ricyde2017.04704
dc.identifier.issn1885-3137
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/60448
dc.language.isoes
dc.publisherRevista Internacional de Ciencias del Deporte
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/cl/deed.es
dc.subjectCombat sports
dc.subjectErgogenic aid
dc.subjectFatigue
dc.subjectMuscle activity
dc.subjectSupplementation
dc.titleAcute effect of caffeine ingestion on reaction time and electromyographic activity of the dollyo chagi round kick in taekwondo fighters
dc.typeArtículo
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
TEXTO EN ESPAÑOL
Tamaño:
779.79 KB
Formato:
Adobe Portable Document Format
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FM - Artículos de Revista