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This is another classic contribution by Braune and Fischer to the
field of biomechanics. The pendulum method was employed to
ascertain ac curately the moments and radii of inertia of the human
body and its different parts about all axes - transverse, oblique
or longitudinal. This elegant method is described in detail,
together with the results. Relations were found between the centres
of inertia on one hand and the lengths and diameters of the body
segments on the other. These data were originally prepared for the
authors' later work, The Human Gait, to determine the forces
exerted on and by the parts of the body during walking. Such work
is the basis for solving the mechanical prob lems related to any
movement of the human body: thus, the original results presented
here continue to be of im mense value to current research and
practice. Aywaille, May 1988 P. Maquet v Contents Introduction . .
. . . . . . . . . . . . 1 Experimental Determination of the Moments
of Inertia of the Parts of the Body About Axes Through the Centre
of Gravity and at Right Angles to the Longitudinal Axis, and About
the Longitudinal Axis Itself . . . . 11 First Series of
Experiments. . . . . 16 Second Series of Experiments. . . . 25
Oscillations of the Trunk and Head System. 29 Oscillations of the
Trunk Without the Head 30 Oscillations of the Head. . . 31
Oscillations of the Left Leg. . . . . . . . 31 Oscillations of the
Left Thigh. . . . . . . 31 Oscillations of the Left Lower Leg and
Foot System . . . . . . . . . . . . 32 Oscillations of the Left
Lower Leg . . ."
The different chapters of the present book were published
separately each as a complete entity in the Proceedings of the
Royal Saxon Society for Sciences. Chapter 1 appeared in 1895 under
the names of Wilhelm Braune and Otto Fischer although Braune died
immediately after the initial experiments, before the recordings
had been interpreted. Chapters 2-6 were signed by Fischer only and
appeared in 1899, 1900, 1901, 1903 and 1904. Basic data needed for
this investigation of the human gait had been provided previously.
A research on the centre of gravity ofthe human body and its
different segments by both authors was published in 1889,
determination of the moments of inertia of the human body and its
segments in 1892. So far only the fIrst of these two works has been
published in English. The other has been translated and awaits
publication. Springer-Verlag must be congratulated for the quality
of this edition and for the care they took in reproducing the
original fIgures. This was certainly no easy task. We thank them
for the patience they displayed towards the translators.
Publication of the present book was made possible fInancially by
Prof. M. Muller, Bern. We are grateful to him for his generosity
and so will be the scientifIc community.
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