剣道運動の筋電図学的研究(そのI) : 応用わざ,特にすり上げわざについて

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Purpose: Studies were made of applied skills in kendo, especially on "suriage waza(parrying skill)." As to with what muscular actions "parrying" was made, and as to how effectively "suriage waza" were exhibited, studies were made using the electromyographic method(surface electrodes method). Results: The results of the collective studies of both Men(basic frontal attacks) and "Men-suriage-Men" are as described below. In the case of the Men, a state of electric discharging was seen chiefly when the attack was made, and after the attack was made, a tendency--a gradual lossening of the muscular strain--was noted. For Men, as the arms were raised high and they were brought down, the group of flexor muscles preceded, and considerably large electric discharging was noted, this probably was because that the arms-raising action and the arms-bringing down action were made as a single continued action. In the case of "Men-suriage-Men", electric discharging was noted between the time when the "suriage" motion was made and the time when the attacking motion was made. Thereafter, a tendency of the prompt loosening of the strain on the muscles was seen. Also, in the case of "Men-suriage-Men", contrary to the case of Men, the group of extensors exhibited a state of discharging in a large scale. This is because that as the opponent's shinai(bamboo sword) was parried when he was going to make a Men, the flexor muscles were used just for changing the direction of the opponent's shinai; for raising the arms, there was no need to use the strong muscles which were used for making Men. Controrily however, as momentary strength was used for making Men, considerably large discharging was noted on the extensors. Conclusion: So far, it has been considered ideal that when "Mensuriage-Men" are made, no large strength should be used for parrying the opponent's shinai, and when Men are made, such attacks should be made with momentarily large strength. In this study, it was proved that in the case when "parrying" of attacks were made, the flexor muscles were used just for changing the direction of the opponent's shinai, while when attacks were made, the momentarily large strength was given to the extensors. These are considered efficient motions.
慶應義塾大学の論文

剣道運動の筋電図学的研究(そのI) : 応用わざ,特にすり上げわざについて

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