I’m interested to hear other people’s comments. I have been looking at bringing these into our store so I tried some out and will do more analysis in the near future. Here’s what I noticed:
The lugs create a sharp transition to the sides of the forefoot to the point that I could see the acceleration caused by this sharp transition causing a sprained ankle if running on root trails. I ran on a treadmill and did not experience any problems with this while running, but it did stand out to me while walking in the shoes.
If this a shoe meant for forefoot running, why is the heel so substantial? Yes, there is a drop from the forefoot to the heel, but in reviews it says that if your are a heel striker this shoe is not for you, yet the trainer I am trying has substantial heel cushioning and posting to aid a transition from heel to toe.
I am a pretty efficient runner. I land under my hips with a relaxed foot, not forcing a forefoot strike. I did not find the shoe to aid me in running with good mechanics. I run in a pair of Adizero Manas which have a positive heel, but are pretty close to having a forefoot and heel of equal height. I wish they were equal - I see that as being natural. I do not find a negative heel to be any more natural than a positive heel. That said, I do see how a positive heel encourages heel striking. I also compared the Newtons to running in a pair of Brooks Adrenalines and I saw again, my running gait was not improved by the Newton shoes vs the large heeled Adrenalines.
I found the lugs to increase pressure on my forefoot more than when I run in flats to the point of irritating nerves.
My conclusion is that I like the look of the Netwons and I like the way they fit, but I did not find them to aid already good mechanics and, as stated on Newton’s website, they do not correct poor mechanics.
I’m going to do some frame by frame video analysis taken from the side to see if my timing while running is improved by running in the Newtons. If the Newtons are effective, it should be visible that I land under my hips sooner and my rear foot comes off the ground sooner.
OK, take a look for yourself and be the judge.
Without Newtons: http://www.youtube.com/watch?v=JL87NaU42tw
With Newtons: http://www.youtube.com/watch?v=dMxHIVNRxTw
(tried to do slo-mo split screen, but iVideo is not so great with this, not like windows movie maker)