摘要：This study aimed to evaluate the mechanics efficiency of harai goshi applied in judocas of different heights. It was compared: the tori angular variation of knee, hip and trunk; the time to perform each technique phase; the displacement of the vertical trajectory of tori center of mass (∆CM). Were analyzed 10 harai goshi kinematic throws, the tori with an intermediate height against three uke with lower, equivalent and higher height of him. The images were recorded at 180 Hz, using the Peak Motus System. The data were analyzed by means of descriptive statistics, ANOVA and pos-hoc of Tukey (p 0,05). In the angular displacement, uke of higher stature had greater efficiency of tori when projecting. The time to project uke higher was lower. The ∆CM showed the same standard behaves. We conclude that the harai goshi technique is more efficient when applied against equivalent or higher opponents.
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