What is the normal arm swing distance when marching at quick time?

The normal arm swing distance when marching at quick time is nine inches to the front and six inches to the rear. This distance helps maintain proper marching form and ensures that the movement is coordinated with the legs. The forward swing of nine inches allows for natural arm movement that complements the forward motion of the body, promoting rhythm and balance. The rearward swing of six inches ensures that the arms do not encroach on the space of others while maintaining an appropriate distance that supports overall marching aesthetics. Proper arm swing is critical in military formations as it contributes to the unit's discipline and appearance during movement.