I attended a workshop once with a member of the Flanders Recorder Quartet. (You can find them on YouTube to see how talented they are.) He said that the best way to mark time in music is to tap the feet, because in walking we take regular steps of equal length, and we have done so thousands of times.

He also said to mark time using first one foot and then the other, not just by tapping one toe. "Otherwise you will make a mistake."

Surely if feet can send a message to the body to help with making steady music, then making music must help send a message to the feet to help with making steady steps.