Running really "bouncy" = higher top speeds?

[tb2010]

@Track_man

I’m sure most of you know what I mean by running bouncy. Basically, staying high on the balls of your feet, and really bouncing up and down high, sort of like you’re bounding.

I was watching powell’s 9.75 run and got reminded of running like this. Does it increase your stride length? and when I run like this when im just doing warm up strides, it “feels” sort of faster.

thoughts?

not sure i would call it bouncy, but good hip height off the track definitely helps speed