テニスレシーブ時における筋活動および呼吸相に関する研究 : その1 フォアにレドレシーブについて
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概要
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The purpose of this paper is to examine the difference of a degree between the trained and untrained with the stroke of receive and then to investigate the mechanism that the voluntery movement, what is called the receiving, became doing reflex by from the motor skill process in the untrained. The 16mm film, EMG and respiration were used as the measurement. As the results of this experiment, we had a few findings as follows. 1) In the receiving posture, the EMG of lower limb muscles was characteristic in the trained and this was as well as another postures. And then the effect of training in the untrained indicated the tendency of the same pattern as well as trained. The alternate discharge of the lower limbs effected to the muscles of upper limbs and this indicated the master of stroke of receive. 2) The burst discharge of the effective muscles flexor carpi ulnaris decteased at 0.1 sec before impact in the trained. This tendency was not shown in the untrained. 3) For the respiration at the impact, most of the untrained was inspired compaired with being expired in the trained. But after training the untrained received in the breath hold. Therefore the regulation of respiration was one of a most important factors in the receiving. 4) As the result of the film analysis, the difference of impact points in the untrained resulted from losing ballance and too much tension of all parts of the body. This was by the reason that the timing, spacial and dynamic regulation system wasn't completed. On the other hand, the trained obtained it by the training for long term and in result became reglexible. 5) It was found that development in the girth of forearm rose with the finish of the motor skill. This is necessary to take into consideration from a point of view of a normal development of the body.
- 横浜国立大学の論文
- 1976-09-10