Memorias de investigación
Artículos en revistas:
Supplementation Improves Anaerobic Performance and Neuromuscular Efficiency and Fatigue in Olympic-Level Boxers
Año:2019
Áreas de investigación
  • Biomedicina
Datos
Descripción
Abstract: Background: this study examined the e ects of ca eine supplementation on anaerobic performance, neuromuscular e?ciency and upper and lower extremities fatigue in Olympic-level boxers. Methods: Eight male athletes, members of the Spanish National Olympic Team, were enrolled in the study. In a randomized double-blind, placebo-controlled, counterbalanced, crossover design, the athletes completed 2 test sessions after the intake of ca eine (6 mg?kg?1) or placebo. Sessions involved initial measures of lactate, handgrip and countermovement jump (CMJ) performance, followed by a 30-seconds Wingate test, and then final measures of the previous variables. During the sessions, electromiography (EMG) data were recorded on the gluteus maximus, biceps femoris, vastus lateralis, gastrocnemius lateral head and tibialis anterior. Results: ca eine enhanced peak power (6.27%, p < 0.01; E ect Size (ES) = 1.26), mean power (5.21%; p < 0.01; ES = 1.29) and reduced the time needed to reach peak power (?9.91%, p < 0.01; ES = 0.58) in theWingate test, improved jump height in the CMJ (+2.4 cm, p < 0.01), and improved neuromuscular e?ciency at peak power in the vastus lateralis (ES = 1.01) and gluteus maximus (ES = 0.89), and mean power in the vastus lateralis (ES = 0.95) and tibialis anterior (ES = 0.83). Conclusions: in these Olympic-level boxers, ca eine supplementation improved anaerobic performance without a ecting EMG activity and fatigue levels in theAbstract: Background: this study examined the e ects of ca eine supplementation on anaerobic performance, neuromuscular e?ciency and upper and lower extremities fatigue in Olympic-level boxers. Methods: Eight male athletes, members of the Spanish National Olympic Team, were enrolled in the study. In a randomized double-blind, placebo-controlled, counterbalanced, crossover design, the athletes completed 2 test sessions after the intake of ca eine (6 mg?kg?1) or placebo. Sessions involved initial measures of lactate, handgrip and countermovement jump (CMJ) performance, followed by a 30-seconds Wingate test, and then final measures of the previous variables. During the sessions, electromiography (EMG) data were recorded on the gluteus maximus, biceps femoris, vastus lateralis, gastrocnemius lateral head and tibialis anterior. Results: ca eine enhanced peak power (6.27%, p < 0.01; E ect Size (ES) = 1.26), mean power (5.21%; p < 0.01; ES = 1.29) and reduced the time needed to reach peak power (?9.91%, p < 0.01; ES = 0.58) in theWingate test, improved jump height in the CMJ (+2.4 cm, p < 0.01), and improved neuromuscular e?ciency at peak power in the vastus lateralis (ES = 1.01) and gluteus maximus (ES = 0.89), and mean power in the vastus lateralis (ES = 0.95) and tibialis anterior (ES = 0.83). Conclusions: in these Olympic-level boxers, ca eine supplementation improved anaerobic performance without a ecting EMG activity and fatigue levels in the lower limbs. Further benefits observed were enhanced neuromuscular e?ciency in some muscles and improved reaction speed.Ef lower limbs. Further benefits observed were enhanced neuromuscular e?ciency in some muscles and improved reaction speed.
Internacional
Si
JCR del ISI
Si
Título de la revista
Nutrition & Dietetics
ISSN
1446-6368
Factor de impacto JCR
4,546
Información de impacto
Volumen
11
DOI
10.3390/nu11092120
Número de revista
9
Desde la página
1
Hasta la página
15
Mes
SEPTIEMBRE
Ranking
Q1
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Análisis Biomecánico
  • Departamento: Salud y Rendimiento Humano