I must note that the guy in the youtube video on 'proper running technique' seems to have missed that his example on the right of 'proper' or 'after instruction' running technique has her head violently bouncing up and down with each step. To wit: she flunks the practical running style test. I also like how he labels the left example as the 'injury - prone' style of heel first running too - no bias there, eh? I would have to guess that he is a rank novice at the sport with a cell phone camera, an Internet hookup and very little time on the trails. Also that he is not prone to migraine headaches as that style advice can sure bring one on right quickly. 
We have hundreds of tendons to support our heads as we run so as to keep it level and not bounce, why would one then ignore that and run such that their head bounced up and down? Us trail geezers refer to that as "spinal clackers" (as in the Beatles tune) because that violent shaking can give you a lot of pain later from the head on down. Yeah, it looks real neat when you slap your' butt with your heels as you go down the trail, but you will run out of steam after a while of wasting energy that way.
Successful long - term runners roll from heel to toe smoothly, keeping their feet close to the ground, conserving energy and minimizing motion. This allows us to go a very long distance on an ongoing basis without injury.
Sure, if you want to sprint quickly you gotta get up on the balls of your feet to do that, but if you try to stay on the balls of your feet for 25 miles while slapping your' butt with your heels each step, you are going to fail miserably.
Running is the art of placing your feet before you alternately as you constantly fall forward. Proper posture, breathing and smooth motion are the focus. There is no staccato or percussive motion involved. There is no 'locking out' of anything. Style is indeed of paramount importance, but sprinting style will not work for distance and it is unfortunate that there are people out there advising others to do that, especially when their own instructional videos show the flaw in their technique.
I deeply appreciate the social significance of following the current 'bare foot running' fad and the dire need to be stylish. Try that here in Detroit and you will come home wearing a dozen broken bottles worth of glass in your feet. I would add to enjoy your' fallen arches as well. But then, I have only been running for 45 years now, and at 61 can only squeeze out 7 miles a day 7 days a week, so maybe I don't really know what I am talking about...
...and the last serious injury I got was a torn meniscus from swinging myself up on an antique saddle.
Carry on.
We have hundreds of tendons to support our heads as we run so as to keep it level and not bounce, why would one then ignore that and run such that their head bounced up and down? Us trail geezers refer to that as "spinal clackers" (as in the Beatles tune) because that violent shaking can give you a lot of pain later from the head on down. Yeah, it looks real neat when you slap your' butt with your heels as you go down the trail, but you will run out of steam after a while of wasting energy that way.
Successful long - term runners roll from heel to toe smoothly, keeping their feet close to the ground, conserving energy and minimizing motion. This allows us to go a very long distance on an ongoing basis without injury.
Sure, if you want to sprint quickly you gotta get up on the balls of your feet to do that, but if you try to stay on the balls of your feet for 25 miles while slapping your' butt with your heels each step, you are going to fail miserably.
Running is the art of placing your feet before you alternately as you constantly fall forward. Proper posture, breathing and smooth motion are the focus. There is no staccato or percussive motion involved. There is no 'locking out' of anything. Style is indeed of paramount importance, but sprinting style will not work for distance and it is unfortunate that there are people out there advising others to do that, especially when their own instructional videos show the flaw in their technique.
I deeply appreciate the social significance of following the current 'bare foot running' fad and the dire need to be stylish. Try that here in Detroit and you will come home wearing a dozen broken bottles worth of glass in your feet. I would add to enjoy your' fallen arches as well. But then, I have only been running for 45 years now, and at 61 can only squeeze out 7 miles a day 7 days a week, so maybe I don't really know what I am talking about...
...and the last serious injury I got was a torn meniscus from swinging myself up on an antique saddle.
Carry on.