Running and Leaning

I think one of the keys to proper running form is a slight forward lean.  If you take a look at the Kenyan distance runners, almost all of them lean forward slightly when running.

I think the lean is good for a couple of reasons.  First, it cuts down the chances of overstriding - that is, you will be more likely to land with your feet under your hips and not in front of them.  Second, you can get a little extra speed from leaning forward.  It's certainly possible to run fast with the body being vertical, but leaning forward gives that extra bit of help.

Leaning forward while running is not something that came naturally to me.  I had to build it into my running technique with practice.  Even now, I still catch myself straightening up and have to remember to lean.  Also, it is important to note that the proper lean is a whole-body lean, not just bending over at the waist.  Imagine drawing a line from your ankles to your head, and then leaning a bit forward.

I bet that those who grew up running barefoot, like the Kenyans, have a forward lean that developed naturally over time.  Those of us in the West, with our big-heeled shoes, are probably not so fortunate.