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. Introduction: Judo is a high-intensity sport, characterized by a series of acyclic movements that require high technical mastery during combat. It was previously shown that growth of components of physical function is related with an increased probability successful competitive performance. Suspension training is effective at improving components of physical function. Objective: Therefore, the aim of this study was to determine the changes in physical performance traits of youth judokas after a 5-week suspension-training programme. Methods: Ten judokas (age, 15.4 ± 2.8 y) completed a 5-week suspension training routine into their normal training schedule. The difficulty and intensity of the exercises were increased each week. Before and after the intervention athletes were assessed in the single-leg horizontal jumping, Sorensen test, sit-and-reach, Y balance, prone instability and handgrip strength tests. Results: Significant improvements (p<.05; Cohen d effect size ≥.2) were observed in the single-leg horizontal jumping (right leg: 137 ± 23.3 vs 164 ± 22.0; left leg: 131 ± 24.1 vs 169 ± 26.5 cm), Sorensen (134 ± 43.4 vs 195 ± 46.7 s), sit-and-reach (42.1 ± 8.2 vs 46.2 ± 7.5 cm), leg Y balance test (right leg: 91.3 ± 6.6 vs 101 ± 7.6%; left leg: 91.2 ± 4.8 vs 103 ± 6.6%) and arm Y balance test (right arm: 80.9 ± 9.2 vs 89.3 ± 8.4; left arm: 81.4 ± 8.6 vs 90.0 ± 9.6%) Conclusions: Lower-body muscle power, muscle endurance, flexibility, lower-body and upper-body balance physical performance traits were improved after a 5-week training period in youth judokas that replaced a part of their regular judo training with a suspension training routine. Resumen . Introduccion: El judo es un deporte de alta intensidad, caracterizado por una serie de movimientos aciclicos con una alta maestria tecnica durante el combate. Se ha demostrado previamente que el desarrollo de componentes de la funcion fisica se relaciona con una mayor probabilidad de rendimiento competitivo exitoso. El entrenamiento de suspension es efectivo en mejorar los componentes de la funcion fisica. Objetivo: Determinar los cambios en el rendimiento fisico en judocas jovenes, despues de un programa de entrenamiento de suspension de 5 semanas. Metodo: Diez judocas (15.4 ± 2.8 anos de edad) completaron un programa de entrenamiento de suspension de 5 semanas dentro de su programacion normal de entrenamiento. La dificultad e intensidad de los ejercicios se incremento cada semana. Antes y despues de la intervencion se evaluo un salto horizontal monopodal, test de Sorensen, sit and reach, Y balance test de miembros inferiores y superiores, test de inestabilidad en prono y fuerza prensil. Resultados: Mejoras significativas (p<.05; Cohen d effect size ≥.2) fueron encontradas en salto horizontal monopodal (derecha: 137 ± 23.3 vs 164 ± 22.0; izquierda: 131 ± 24.1 vs 169 ± 26.5 cm), test de Sorensen (134 ± 43.4 vs 195 ± 46.7 s), sit-and-reach (42.1 ± 8.2 vs 46.2 ± 7.5 cm), Y balance test de miembros inferiores (derecha: 91.3 ± 6.6 vs 101 ± 7.6%; izquierda: 91.2 ± 4.8 vs 103 ± 6.6%) and Y balance test de miembros superiores (derecho: 80.9 ± 9.2 vs 89.3 ± 8.4; izquierdo: 81.4 ± 8.6 vs 90.0 ± 9.6%). Conclusiones: La potencia de miembros inferiores, resistencia muscular, flexibilidad y balance de miembros inferiores y superiores mejoro despues de un programa de entrenamiento de suspension de 5 semanas en judocas jovenes.

retos digital/retos

5-week suspension training program increase physical performance of youth judokas: a pilot study (Un programa de entrenamiento de suspensión de 5 semanas incrementa el rendimiento físico en jóvenes judocas: un estudio piloto)