One thing you may notice in a walk cycle is that the arms and legs are always in opposing positions; if the left leg is forward, the left arm is back. If the right leg is back, the right arm is forward. This, too, relates to balance and distribution of weight; your body naturally counter-swings your limbs so that your weight is constantly flowing evenly to keep you on balance. You can try walking with your arms and legs moving in even synchronicity, but you'd be a bit uncomfortable and find yourself moving rigidly--and possibly keeling to one side.


