Body segment parameters@j08jBody segment inertia properties of Japanese elderly

Reference

Body segment inertia properties of Japanese elderly

Journal

Biomechanism 13(1996)125-139

Author

H.Okada, M.Ae, N.Fujii, Y.Morioka

Item

M@COG@I

State

Living

Sample number

Male 90@
Female 89

Sex

Male Female

Age

Male 62-86@
Female 61-83

Measurement year

?

Race

Japanese

Measurement place

Japan

Measurement technique

Photogrammetry

Raw data accesibility

~
01
(1)Definition of body segmentation
15segments: Head, Upper part of torso,Lower part of torso, Upper arm, Forearm, Hand, Thigh, Calf, Foot

a.Head|Upper part of torso
Larynx point

b.Upper part of torso|Lower part of torso
The 10th rib point

c.Upper part of torso|Upper arm
Acromion

d.Upper arm|Forearm
Center of the elbow joint

e.Forearm|Hand
Center of the elbow joint

f.Lower part of torso|Thigh
Greater trochanteric head

g.Thigh|Calf
Center of the knee joint

h.Calf|Foot
Center of the ankle joint

(2)Definition of segment length

a.Head
Tragion to vertex height

b.Total torso
Length from suprasternale to mid-point between right and left greater trochanteric head.

c.Upper part of torso
Length from suprastanale to mid-point between left and right 10th rib point.

d.Lower part of torso
Length from mid-point between left and right 10th rib point to mid-point between left and right greater trochanteric head.

d.Foot
Length from acropodion
(3)Predictive model
The ratio of the center of gravity,mass and moment of inertia in each segment are calculated using stepwise multiple regression equations that include age, segment length, stature and body weight as independent variables.
(4)Validation
A. Comparison between direct measurement of body weight and measurement by photogrammetry.
šError: male 0.07}0.54%@female 0.01}0.45%