Barefoot - forefoot strike
When you run barefoot, you naturally tend to land on the forefoot and roll in, allowing the heel to drop and then pushing off with the forefoot. This encourages a realignment of your back and posture, where your chest is further forward and arms are closer to the body.
Research shows that barefoot runners who land on their forefoot, may generate less impact shock than runners in padded running shoes who land heel first. It has been suggested that this could reduce running-related injuries.