Avoiding injury in running comes with good mechanics.
The world’s first computerized shoes, Adidas 1, won’t teach you how to stride with the grace and economy of Abebe Bikila or Zola Budd — to name a pair of famous barefoot runners.
But this footwear actually does help. Every time the foot swings upward off the ground, the shoes adjust their cushioning to the individual wearer’s running style and pace and to changes in terrain.
Apparently the algorithm the shoe uses to control the cushioning adjustment mechanism was intentionally left out of the patent. I presume it's better to have that as a trade secret rather than allow competitors to simply derive a similar-but-different-enough approach.
I saw a pair in the store a while back, thought them gimmicky. But this article makes me reconsider. On the other hand, running is supposed to be the "inexpensive" sport.