Currently, there is interest in investigating how interlimb asymmetries (IA) of body composition impact sport-specific performance outcomes. This study aimed to examine the relationship between body composition inter-limb asymmetry and specific performance outcomes in taekwondo athletes. Seventeen national and international athletes (males, n = 8, mean age = 23.3 ± 3.1 years, mean stature = 177.2 ± 8.5 cm, mean body mass = 80.0 ± 7.3 kg; females, n = 9, mean age = 25.0 ± 4.0 years, mean stature = 161.1 ± 4.4 cm, mean body mass = 59.8 ± 5.7 kg) participated in the study. During a non-consecutive 2-day period, body composition (BC) and IA were assessed using dual X-ray absorptiometry, and the magnitude (%) of IA was calculated. Specific-performance included taekwondo specific agility test (TSAT) and Frequency Speed of Kick Test Multiple (FSKT_MULT). The relationship between BC asymmetry and performance outcomes was analyzed using a partial correlation approach (controlling for gender, age, and training time). The influence of the significant results was examined using forward stepwise linear regression models. The main results showed no significant differences between the lower limbs (p < 0.05). The IA ranged from 1.37% to 2.96%. Moderate to large negative correlations (r = −0.56 to −0.76, p < 0.05) were documented between IA of body mass, free fat mass (FFM), and lean soft tissue mass (LSTM) with most FSKT_MULT outcomes. Bone mineral density (BMD) was correlated with set 5 (rho = −0.49, p = 0.04). The FFM and LSTM asymmetries influenced the KDI reduction by 21%. Meanwhile, IA BMD negatively influenced set 5 performance by 48%. The findings of our study indicate that asymmetries independent of the magnitude of muscle and bone mass-related outcomes may have detrimental effects on high-intensity performance in taekwondo athletes. This underscores the importance of implementing comprehensive training programs and paying attention to achieving body composition inter-limb symmetry to improve overall performance levels in this sport.

El Taekwondo es un deporte de combate con alta exigencia física, por lo que la búsqueda de nuevos métodos para su entrenamiento es un tema de relevancia en las ciencias del deporte. El objetivo de este estudio fue identificar el efecto agudo de las vibraciones de cuerpo completo sobre la frecuencia de pateo e Índice de Fatiga de la patada circular en atletas de Taekwondo. Participaron 10 atletas de Taekwondo, todos del sexo masculino (edad: 21,1±1,52 años; masa corporal: 69,64±6,71 kg; estatura bípeda: 1,71±0,08 m; IMC: 23,9±1,17). Cada participante ejecutó un protocolo control y tres protocolos de entrenamiento sobre una plataforma vibratoria. Posterior a cada uno de los protocolos, se ejecutó el FSKTmult. Se utilizó la prueba ANOVA para comparar los resultados entre los grupos y se aplicó la prueba de post hoc de Bonferroni, además, se calculó el tamaño del efecto. Existieron diferencias significativas entre el grupo control y SV (p=0.018) en FSKT-2. De manera general, a pesar de lo señalado, se aprecia un efecto moderado en FSKT-1 (n2= 0.070), FSKT-2 (n2= 0.128); FSKT-3 (n2= 0.070), FSKT-5 (n2= 0.070) y FSKT-Total (n2= 0.076). En cuanto a los protocolos, en todos se presentan efectos moderados y altos en la prueba FSKTmult, siendo el protocolo SD el que tiene mejores resultados en el tamaño del efecto y a la vez, uno de los que demuestra un menor KDI. Los hallazgos dan cuenta de que la realización de ejercicios con exposición a VCC genera una mejora sobre la frecuencia de pateo y KDI, evidenciando el protocolo SD una mejor relación entre rendimiento y KDI. Palabras claves: Efecto Agudo; FSKT; Plataforma Vibratoria; Taekwondo. Taekwondo is a combat sport with high physical demands, hence the search for new methods for its training is a relevant topic in sport science. The aim of this study was to identify the acute effect of whole-body vibrations on the kick frequency and Fatigue Index of the roundhouse kick in Taekwondo athletes. 10 Taekwondo athletes participated, all male (age: 21.1±1.52 years; body mass: 69.64±6.71 kg; bipedal height: 1.71±0.08 m; BMI: 23, 9±1,17). Each participant executed a control protocol and three training protocols on a vibrating platform. After each of the protocols, the FSKTmult was executed. The ANOVA test was used to compare the results between the groups and the Bonferroni post hoc test was applied, in addition, the effect size was calculated. There were significant differences between the control group and SV (p=0.018) in FSKT-2. In general, despite the above, a moderate effect was observed in FSKT-1 (n2= 0.070), FSKT-2 (n2= 0.128); FSKT-3 (n2= 0.070), FSKT-5 (n2= 0.070) and FSKT-Total (n2= 0.076). As for the protocols, all of them present moderate and high effects in the FSKTmult test, with the SD protocol being the one with the best results in effect size and, at the same time, one of those that demonstrates a lower KDI. The findings show that performing exercises with exposure to WBV generates an improvement in kicking frequency and KDI, evidencing the SD protocol a better relationship between performance and KDI. Keywords: Acute Effect; FSKT; Vibrating platform; Taekwondo.