Reaction times of punching movements in female collegiate karate athletes based on ground reaction forces and kinematics : Focus on kumite international level athlete

The purpose of this study was to clarify the reaction times of karate athletes against opponents based on kinetics and kinematics in karate kumite. In addition, the reaction times of international, university and kata athletes are compared to examine the characteristics of international-level athletes. Thirteen female university karate athletes (kumite international level：n＝2, kumite university level：n＝6, kata：n＝5) participated in this study. Fourteen motion capture cameras and three force plates were used to record kizami-tsuki and gyaku-thuki movements to LED light stimuli and the opponent’s movement. Kinetics and kinematics analysis showed no differences in reaction times od LED light stimuli between kumite, kata and competition levels. But international level kumite athletes tended to have the shorter reaction times against opponent’s movement. In conclusion, these results suggest that kumite international level athletes have an excellent ability to predict and estimate the movements of their opponents

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Halerpestes cymbalaria (Pursh) Greeneseaside buttercupenoncule cymbalaireRanunculus cymbalariaMilk River Valley; Gold Spring Municipal Park, 1.5 km SE of Milk River TownDry Mixed Grassland: prairie incised river valley - open meadow on alluvial gravels and sand3325 fee