Loc: St. Clair Shores, MI USA
Quote: Sliding doesn't mean your feet must always touch the ground. It's always preferable to raise your feet only as much as is needed because this will reduce your up-&-down movement. You want all your momentum going forward (or any other direction) to enhance power.
Have you ever watched an Olympic hurdler compared to an average person jumping over hurdles? The hurdler's head remains on the same plane whether running or clearing the hurdle. The average person's head goes up-&-down. An exagerated but valid analogy.
Not exaggerated, hedkicker. I ran hurdles in high school. Just like in fighting & katas, you don't want to waste energy by bobbing. And you pick up your legs only as much as necessary. There's no penalty for knocking down the hurdle aside from its slowing you down.
Well, if you fight some 1 that does judo,jujustu or a art in that catagory you might wanna slide your feet. From experience they tend to beable throw or sweep when your wieght is on one foot,even in that small time frame.