健常者の柔軟性に関する衛生学的研究 : その1.測定方法論

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Synopsis:The significance of the bodily flexibility has long been discussed in Japan from the viewpoint of medical science, pedagogy, and Physical education, but its true nature still remains to be clarified.Recently, however, its importance has been recognized here and the Ministry of Education and the Japanese Society of Physical Education have respectively published their simplified methods.This is indeed a step forward in the field of physical education, but a closer methodological examination reveals some contradictions and drawbacks in their methods. For instance, either of them can be applied only to the measurement of the trunk flexion and trunk extension, no mension being made of that of sideward bend or sideward rotation, or of the minute measurement of each part of a body which they are incapable of.Thus pointing out contradictions of the Education Ministry and Physical Society formulas, the author has devised an entirely new flexibility measurement instrument based on the angular formula with the aid of available domestic and foreign literature, thereby putting forward a new measurement method, universally applicable to all parts of a body. A detailed explanation will be given in the article which is to appear in the next issue.Conclusion:1) In the case of the distance-formula measurement adopted by the Ministry of Education and the Japanese Society of Physical Education, the physical difference of examinées should be taken into consideration as a foreign element: therefore these methods are unsuitable for the indication of pure flexibility. (The measurement error is shown in the text.)2) In the case of the distance-formula the difference between the length of legs and that of trunk of the examinées (here for convenience sake the length of trunk being the distance between spina iliaca anterior superior and acromion) is a substantial controlling factor to the measurement value of the elements that constitute a human body.3) The adoption of flexibility method based on the angular formula makes it possible to eliminate the above-mentioned foreign elements, thus facilitating the comparison of flexibility between the examinées different in age, sex, and physique.4) With the authors flexibility instrument the flexibility of all the joints of a body as well as that of trunk flexion and extension and of sideward bend and rotation can be easily measured.5) In the flexibility measurement of the trunk the standing posture affords more reliability than the sitting posture with a smaller coefficient of variance.6) Of the flexibility measurement methods of the trunk, some methods which to the present writer seem of universal validity are shown in the following text.
日本衛生学会の論文

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大山良徳
京都大学教養部保健体育学教室

健常者の柔軟性に関する衛生学的研究 : その1.測定方法論

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