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Re: How it has changed
Posted by Anonymous
3/28/2007  5:45:00 PM
To everyone who still believes we are balanced when we walk:

Look up the concept of the "zero moment point" or ZMP.

The constraint for walking is usually that the ZMP is within the footprint of the standing foot. It is NOT that the CENTER OF MASS is within the standing foortprint - in fact, it usually isn't.

We are not balanced when we walk, however, the net forces and desired accelerations do balance out - if they didn't we would move in an undesired direction, which of course is something neither healthy adults walking, nor skilled dancers dancing would tolerate. But both are OFF BALANCe more of the time than theya re on balance.
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