Im dem Forschungsprozess der Leibeserziehungskunde begegnen uns noch so viele schwankende Fragen. Aber schliesslich handelt es sich durum, ob sie eine Einzelwissenschaft sein kann. Und die Leibeserziehungskunde kann eine Einzelwissenschaft bein, erst wenn sie das menschliche Sein behandelt, es auf dem Gebiet der Erziehung uberhaupt begreift,und alle Fragen, die da geschehen, in der wirklichem Situation der Leibesubungen losen will.
Difference of response in Psychogalvanic Phenomenon in response to Kendo play and to Kyudo play (Archery) imaginated among skilled players, beginners and unexperienced subjects in Kendo and Kyudo were studied. (And the same studies were made when these subjects were watching the motion picture of a match of Kendo and several shooting of Kyudo by skilled players, beginners and unexperieneed subjects in Kendo and Kyudo. The results of these experiments were summarized as followed. A. In Kendo The skilled players responded with characteristic wave of Psychogalvanic Phenomenon when they imaginated their own performance of Kendo, and also they watched the motion picture of a match of Kendo. However the beginners show frequent wave to blow, and the unexperienced subjects did not show any remarkable wave in Psychogalvanic Phenomenon in response to Kendo play imaginated and watched in motion picture. B. In Kyudo The skilled players did not show any remarkable wave, but the beginners show frequent wave in Psychogalvanic Phenomenon in response to Kyudo play imaginated and viewed in motion picture.
The author estimated the O_2 requirements from the average time of each races and speed-O_2 requirement curve in running and swimming races in Japanese senior high-school athletes who are ranking players. The O_2 requirements of similar race time, were less in swimmers than in runners. The O_2 debt and alveolar O_2% after races, were less in swimmers than runners and dlveolar CO_2% of is larger in Swimmers than runers. It was confirmed that the lung ventilation was limited due to water pressure and spcifrc inspiration movement. It was demonstrated that the inhalation of O_2 before the race could shorten the records in short distance swimming races.
Transient exhaustion of the voluntary movement accompanied by sensation of fatigue was investigated by mean of discharge pattern of the single NMU, using the electro-myographic technique, with the object to obtain a glimpse into the cause. 1. Subjects were ordered to make intensive muscular work, and when they felt it impossible to continue if further, discharge pattern of the single NMU was sought. The pattern showed remarkably larger fluctuation than before the work, and as the result the τ-S relation tended to deviate remarkably to the left as compared with the inital one. 2. There was some difference between the upper and lower limb in this tendency, being more remarkable in the latter. 3. The leftward shift returned to the normal pattern, after some time, but it seemed to take longer time than the recovery from exhaustion of the vertebral motoneuron. From these facts it was estimated thet the cause of transient exhaustion of the voluntary movement accompanied by sensation of fatigue must be sought in the nerval circuit which governs the γ system.
In order to find out circulatory adjustment to elevation of the intra-thoracic pressure, the author employed the method of Burger's Test with the pressure of 40mmHg and the duration of 30 seconds. 13 normal subjects were examined (6 swimmers and 6 untrained), 5 physically feeble subjects and a subjects who had fainted while swimming. The results were as follows. In the cases of swimmers and untrained, the blood pressure increased during the elevation of intra-thoracic pressure and returned to its normal level earlier in the former after the release of pressure. The pulsee waves (both of amplitude and wave area) of swimmers during the elevation of intra-thoracic pressure were larger than that of the untrained. Heart figures of the swimmers during elevation of intra-thoracic pressure diminished in size, but to less degree compared with that of the untrained. The test results of 5 physically feeble subjects showed no remarkable variations in comparison with 12 normal subjects. In the case of the subject who had fainted while swimming, the blood pressure was inmeasurably low, owing to diminution of vascular tone. Pulse rate was extre-mely frequent (170/min. measured by means of E.C.G.). Heart figure also extremely diminished. It is worth mentioning that he showed normal tests results except for Burgejs Test. The author concluds that owing to the lack of cardiovascular adjustment, some persons will be dangerouos conditions when intra-thoracic pressure is increased, even though no apparent cardiovascular disorders are discovered at rest.
Growth and Development of Japanese boys and girls is improved remarkabley in recent years. This study analyzed the acceleratin phenomenon of growth and development of physique and motor ability related to age and sex using data of measurements on boys and girls aged from 8 to 17 in Osaka prefecture. Results obtained here were as follows: 1) There was remarkable acceleration phenomenon of physique and motor ability in certain age. 2) Acceleration phenomenon in physique was more remarkable than in motor ability. 3) Acceleration phenomenon was apparent in girls. 4) No accelercation phenomenon was found in chinning.