Being someone who sucks at run animations myself, I've studied some videos, and I think why this(the side view one) looks like power walking instead of running is because of the kick it has at the end. That's more for walking, not running. When running, your feet seldom go / but more < , if you know what I mean.
The arms also are more suited to walking. When running, your arms are usually at an angle, never spread out, because that could indicate being relaxed, and therefore better suited to walking.
And yes, I was running back and forth to the kitchen while typing this.