Running is defined as the fastest means for an animal to move on foot. It is defined in sporting terms as a gait in which at some point all feet are off the ground at the same time. Human running mechanics Running is a complex and coordinated process that involves the entire body. Every human being runs differently, but certain general features of running motion are common. Lower body motion Running is executed as a sequence of strides, which alternate between the two legs. Each leg's stride ca… (More on Running)