How to determine the center of mass of a runner?

[spotmeter]

I have been reading a number of papers on the biomechanics of running and they all talk about the center of mass (COM), but I haven't found any description of how to determine the center of mass.

I understand, for instance, that the center of mass moves forward with more forward lean.

The reason I need to be able to determine the center of mass is to measure the amount of overstride. Overstride is defined as the distance from the COM to the point of initial foot contact.

Any help very much appreciated.

 

[Valkarie]

The center of mass can be determined using a variety of methods. One common method is by using a motion capture system with multiple cameras. This type of system will track the motion of markers placed on the body, and it will then calculate the center of mass based on the position of those markers over time. Another method for determining the center of mass is to measure the body's weight distribution when standing still, then extrapolate that information to determine the center of mass when in motion.