Journal of the Anthropological Society of Nippon
Online ISSN : 1884-765X
Print ISSN : 0003-5505
ISSN-L : 0003-5505
Volume 62, Issue 5
Displaying 1-5 of 5 articles from this issue
  • Report 1. Measurements of the Body
    KAORU TSUDA
    1952Volume 62Issue 5 Pages 213-226
    Published: December 30, 1952
    Released on J-STAGE: February 26, 2008
    JOURNAL FREE ACCESS
    The results of somatometric comparison of residents(137)of Hikosan district(A)with those of neighbouring districts(B)are in general as follows:
    1. A<B in the case of the following: maximum glabello-occipital length height of ventral iliac spine maximum transverse head breadth(male)girth of chest maximum bizygomatic breadth length of upper limb auricular height(male)length-height index of head(male)mandibular height breadth-height index of head (male) stature jugomandibular index tragion height relative chest girth height of the suprasternal notch relative upper limb length acromion height relative lower limb length pelvic breadth
    2. A>B in the case of following: total face height relative shoulder breadth fingertip height total face index
    3. A and B show no remarkable differences in the case of the following: maximum transverse breadth(female)length-breadth index of head auricular height(female)length-height index of head(female)acromion breadth breadth-height index of head(female)
    Residents of Hikosan district have the closest relationship with those of proper Kyushu Island, and the next closest relationship with those of the islands south of Kyushu, more or less relationship with those in the islands west of Kyushu and the remotest relationship with those of the islands north of Kyushu and the southern districts of Korea.
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  • AKIYOSHI SUDA, KEN MASUTANI
    1952Volume 62Issue 5 Pages 227-236
    Published: December 30, 1952
    Released on J-STAGE: February 26, 2008
    JOURNAL FREE ACCESS
    The anthropological measurements were taken on 126 Japanese professional baseballers during the season of 1949. They are divided into four groups from the viewpoint of their body sizes and proportions : pitchers, catchers, in-and outfielders. The most variance is found among the infielders and the least among the catchers in their body size. Among the outfielders the least variance is found in their legs. body proportions. Pitchers are, in general, tall, relatively slender and have long There are not such great differences between the catchers and the infielders, both are relatively short and thick. Outfielders have heavy trunks and the lower half of the body is well developed.
    In comparison with college oarsmen, the baseballers are in general smaller in length measurements with lighter chests and narrower hips. But there are some characteristics among the ballthrowers and runners such as longer relative upperarm length, greater foot height etc.
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  • KAZUO TERADA
    1952Volume 62Issue 5 Pages 237-244
    Published: December 30, 1952
    Released on J-STAGE: February 26, 2008
    JOURNAL FREE ACCESS
    Man is always under the influence of gravitation, and therefore, his structure and function are related to it. The determination of the centre of gravity is one of the most important problem in the study of man from the mechanical point of view. Hitherto, several methods have been used to determine the centre of gravity statically, such as BORELLI'S (1677, a board counterpoised at the centre), REYMOND'S (1900, one lever and two fulcrums one of which is laid on the scale), etc. But, the fact that the centre of gravity is not a fixed point in the body but is constantly moving has been disregarded in the methods employed thus far. The centre of gravity has always been measured in the overlaying posture and we must seek another way if we wish to know the centre of gravity at any given posture.
    From about thirty years ago, A. BASLER has been studying its characteristics. He asserts that it is affected even by the pulse and it is necessary, therefore, to use a swing; the subject being made to stand in a given posture with a constant force applied against the swing, as a result of which the angle of deflection will be directly due to the height of the centre of gravity and the weight of the subject. His method, I think, is superior to the old ones, but has some faults, for example, if the subject changes his posture even slightly, the influence over the angle of deflection is considerable, and is more than the change of the height of gravity centre that must be measured.
    Our method is free of this fault. We use the swing method, not statically, but dynamically: if the physical pendulum is made to oscillate, its period (T) is exclusively due to the distance from the axis to the centre of gravity and the moment of inertia of the rigid body (1)-(2). Man's moment of inertia is, however, difficult to determine as well as the centre of gravity, and so some rigid body, of which both of these are known, is fixed to the pendulum. Again measure the period (T'), and you will find the distance to be obtained by eliminating the moment of inertia (3) -(4). The resistance of the air in proportion to the velocity and the friction of the bearings, which are attached to decrease the friction which operates to counter the direction of the velocity are both measured and found not to give rise to any need for correction of the results ((6), Fig. 6).
    Such a complex computation as this causes necessarily considerable error in the result which is derived from each measurement. Formula (7) shows the relation of error and it is notable that the success of this experiment should depend on the measures of the T, T', and that accuracy should increase in proportion as T' is much more than T.
    On the principle above explained, we measured the centre of gravity in several postures of one subject, and those in normal standings of 13 subjects. Though the sample size is too small to justify definite conclusions, the correlation between the relative value of leg length and that of height of the centre of gravity was relatively high, which is contrary to SCHEIDT'S statements. This will be a matter of future research.
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  • KAZURO HANIHARA
    1952Volume 62Issue 5 Pages 245-260
    Published: December 30, 1952
    Released on J-STAGE: February 26, 2008
    JOURNAL FREE ACCESS
    T. WINGATE TODD (1920-21) studied age changes on the pubic bone of Whites and Negro-White hybrids. It is well-known that his reports have been applied widely to determine the presumptive age of the dead. In his papers he found there were slight sexual and racial differences.
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  • [in Japanese]
    1952Volume 62Issue 5 Pages 261-264
    Published: December 30, 1952
    Released on J-STAGE: February 26, 2008
    JOURNAL FREE ACCESS
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