The Traffic Accident Reconstruction Origin -ARnews-

Re: Calculating Pedestrian Center of Mass

Tim Boniface (boniface@nonline.net)
Mon, 29 Mar 1999 17:49:06 -0500 (EST)

In regards to Barry Tillmans posting, I obtained a copy of the Man-Systems Integration Standards (MSIS) Volume 1 from NASA which I ordered from their web-site at:
http://www-sa.jsc.nasa.gov/FCSD/CrewStationBranch/Msis/MSIS_home.htm

The formula for calculating center of mass for American males is located on page 3-67. There was no formula for women. The formula is as follows:

L(Z) = [A x (stature,cm.)] + [B x (weight,lbs.)] + [C]

L(Z) is the center of mass measure from the top of the head.

A = 0.486
B = -0.014
C = -4.775

The standard error of the estimate is 1.33 cm.

This formula is for a male standing. Other positions use the same formula but the numbers for A,B C are different.

Tim Boniface
Tim Boniface
boniface@nonline.net

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