Body segment parameters )12)Body segment mass, radius and radius of gyration proportions of children

Reference

Body segment mass, radius and radius of gyration proportions of children

Journal

J.Biomechanics, Vol.19,359-368 (1986)

Author

R.K.Jensen

Item

COG M I

State

Living

Sample number

12

Sex

Male

Age

4-15

Measurement year

?

Race

Caucasian

Measurement place

?

Measurement technique

Photogrammetry

Raw data accessibility

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(1)Definition of body segmentation
16segments:Head, Neck, Upper part of torso, Lower part of torso, Upper arm, Forearm, Hand, Thigh, Calf, Foot.
It is refered the definition of Clauser.The following definitions are original.

Head―Neck
The cut plane passes horizontally through the second vertebra.

Neck―Upper part of torso
The cut plane is located at the junction of the seventh vertebra and first thoracic vertebra.

Upper part of torso―Upper arm
The cut plane begins at the acromion, and extends to the armpit following the medial border of the deltoid muscle.

Upper part of torso―Lower part of torso
The cut plane passes horizontally through the inferior edge of the xiphoid process.

(2)Predictive model
The ratio of the segment mass, center of gravity, and radii of gyration are calculated using regression equations that include age as an independent variable.
(3)Validation
Comparison between direct measurement of body weight and measurement by photogrammetry.
→Error: less than 4%