The characteristics of baton pass techniques in the 4×100 meter relay: comparison between 'up sweep pass' and 'down sweep pass' from the viewpoint of its action

摘要

In this research, running action of "down sweep pass" （Down） in the 4×100-meter relay was compared with that of "up sweep pass" （Up）in order to verify malfunctions of "Down". The following is the result of the research.1）There were no significant differences in the runnersu27 running speed between "Up" and "Down".2）Concerning "Down", there were few changes in the runnersu27 ankle joint movement to the position of dorsiflexion and its movement back to the position of plantar flexion was slow in the support phase.3）Concerning "Down", the runners leaned their whole legs forward at a slight angle in the support phase.4）Concerning "Down",there were observable changes in a forward and backward lean of the runnersu27 body and an upward and downward movement of their upper limbs.5）The runners obtained an advantage of the gain distance with "Down" while there were no significant differences in the time required for baton pass and whole relay race.Consequently, "Up" would be recommended as a training method for beginners who aim to modify the above-mentioned malfunctions. Moreover, a possibility of new technique in baton pass was suggested in order to bring an advantage of the gain distance to "Up".