Effects of 3 mg/kg Body Mass of Caffeine on the Performance of Jiu-Jitsu Elite Athletes
Identificadores
URI: http://hdl.handle.net/20.500.12020/1042ISSN: 2072-6643
DOI: DOI:10.3390/nu14030675
Autor/es
Merino-Fernández, María; Giráldez-Costas, Verónica; González-García, Jaime; Gutiérrez-Hellín, Jorge; González-Millán, Cristina; [et al.]Fecha
2022-02-05Tipo de documento
articleÁrea/s de conocimiento
Ciencias de la Actividad Física y del DeporteMateria/s Unesco
2411.06 Fisiología del EjercicioFichero/s
Resumen
: The effects of caffeine were investigated in judo, boxing, taekwondo and Brazilian jiu-jitsu.
However, this substance was never investigated regarding traditional jiu-jitsu. Therefore, the aim
of this research was to analyze the effects of caffeine in the Special Judo Fitness Test (SJFT) and
technical variables during combat in traditional jiu-jitsu elite athletes. Methods: Twenty-two young
professionals of traditional jiu-jitsu, 11 men and 11 women (age = 22 ± 4 (18–33) years, body mass
= 66.6 ± 10.8 (46.2–86.1) kg, height = 1.70 ± 0.9 (1.55–1.85) m) with 15 ± 7 years of experience in
traditional jiu-jitsu, participated in a double-blind, counterbalanced, crossover study. In two different
conditions, the traditional jiu-jitsu athletes ingested 3 mg/kg body mass of caffeine or a placebo.
After 60 min, they performed the SJFT test to measure throwing performance, and subsequently,
combat to analyze offensive and defensive hitting techniques. Results: Caffeine had a main effect on
the number of throws during the SJFT test (P < 0.01). In addition, it was effective in sets 2 (13 ± 2
vs. 14 ± 2; p = 0.01) and 3 (12 ± 2 vs. 13 ± 1; p = 0.03). There was also a main effect during the
test on heart rate when caffeine was ingested (F = 12.48, p < 0.01). The effects of caffeine were
similar compared to the placebo condition regarding performance during combat both in offensive
and defensive fighting variables Conclusions: the pre-exercise ingestion of 3 mg/kg body mass of
caffeine increased performance in the SJFT test, decreased fatigue perception, and increased power
and endurance perception in professionally traditional jiu-jitsu athletes. However, it did not seem to
improve offensive and defensive technical actions during combat.