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Table 1 Centre of gravity of a human body

Body Segment

 

Place of Centre of Gravity

Weight Ratio of Body Parts

Head- neck-body

From the top of the head 60,4%

From the hip 39,6%

 

Head

Skull Turkish saddle or the external ear canal

0,081

Body/Torso

 

0,497

T 1 ( chest )

In the height of Th. 1-12 midpoint of symmetry axis between segments bounded with transverse plane

0,264

T2 (abdomen  )

In the height of L. 1-4 midpoint of symmetry axis between segments bounded with transverse plane

 

0,093

T3 (pelvis)

In the height of pelvis midpoint of symmetry axis between segments bounded with transverse plane

0,140

Upper arm –forearm, hand

From shoulder joint 51,2%

Ulna 48,8%

0,050

Forearm - hand

From wrist 67,7%

Ulna 32,3%

0,022

Upper arm

From shoulder joint 43,4%

From elbow 56,4%

0,028

Forearm

From elbow 43,0%

From wrist 57,0%

0,016

Hand

From wrist 50,6%

From the 3rd  fingertip

 

0,006

Thigh – leg

From wrist 43,4%

From internal ankles 56,6%

0,161

Shin - Leg

From knee joint 43,3%

From internal ankles 56,6%

0,060

Thigh

From hip 43,3%

From knee joint 56,7%

0,101

Leg - shin

 

From knee joint43,3%

Ankle joint 56,7%

0,046

Leg

From heels 42,3%

Frome toes (1) 57,1%

0,014

Table 2.defining centre of gravity of a body with the help of three torso segments

SegmentRound weight ratio„x” coordinationGr × x„y” coordinationGr × y
Head 0,081 xF GF x xF yF GF x yF
T1 (chest) 0,264 xT1 GT1 x xT1 yT1 GT1 x yT1
T2 (abdominal) 0,093 xT2 GT2 x xT2 yT2 GT2 x yT2
T3 (pelvis) 0,140 xT3 GT3 x xT3 yT3 GT3 x yT3
Upper arm (right) 0,028 xFkj GFkj x xFkj yFkj GFkj x yFkj

Upper arm

(left)

0,028 xFkb GFkb x xFkb yFkb GFkb x yFkb
Forearm (right) 0,016 xAj GAj x xAj yAj GAj x yAj
Forearm (left) 0,016 xAb GAb x xAb yAb GAb x yAb
Hand (right) 0,006 xKj GKj x xKj yKj GKj x yKj
Hand (left) 0,006 xKb GKb x xKb yKb GKb x yKb
Thigh (right) 0,101 xCj GCj x xCj yCj GCj x yCj
Thigh (left) 0,101 xCb GCb x xCb yCb GCb x yCb
Shin (right) 0,046 xLsj GLsj x xLsj yLsj GLsj x yLsj
Shin (left) 0,046 xLsb GLsb x xLsb yLsb GLsb x yLsb
Leg (right) 0,014 xLj GLj x xLj yLj GLj x yLj
Leg (left) 0,014 xLb GLb x xLb yLb GLb x yLb
Sum     Σ(Gr × x)   Σ(Gr × y)

The coordinates of body weight: x = Σ(Gr × x) ; y = Σ(Gr × y)