be changed, making it harder or softer. These com

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be changed, making it harder or softer. These com

Postby yaya2017 » 2018-05-11 03:49

America’s running hero did it again. In 1976 Frank Shorter fought hard for a Silver medal in the Olympic Nike Air Presto Femme Marathon. He was the face of running and the running Nike Air Max 1 Mujer boom was solidly in place. By this time books about how to run were written and running magazines surfaced. In 1976 the 6-year-old New York City Marathon moved from Central Park to the streets of the city. Just over 2,000 people ran that year; 50,000 will run this year. Around this time Brooks, Saucony and New Balance joined Nike, Asics and Adidas as shoe makers supporting the running Adidas Superstar Damen Rosa craze (and they remain atop the running shoe market). The running magazines took the information coming from these brands and tried to narrate the information using a new language runners could understand.The Birth of StabilityThe small company Brooks noticed that some runners (many actually) had unstable heels. As this foot rolled through impact, the heel would cave to the inside, which would cause the foot to toe off at an sub-optimal angle. It was Nike Air Force 1 Femme believed then that this was one of the causes of the injuries that were occurring. In 1976 Brooks introduced the Vantage (highest pic above), advertising soft support. They showed pictures of a compromised heel and a supported heel (see the ad just above). The foam was still sheet EVA and the solution was the Varus Wedge. That shoe won awards in the magazines and a new category of shoe emerged. It wasn’t called Stability yet, but this recognized shoe category was coming.

Brooks used that Varus Wedge construction for more than 10 years. Not long afterward every brand had its version of supportive construction.Two other advancements happened around this time that really changed shoes: First, the advent of Polyurethane (PU) as a cushioning material. Brands learned how to mold PU into the shape of a midsole. The material brought a Nike Air Max 97 Femme great deal of cushioning as well as durability. It became an integral part of both Nike and New Balance footwear. PU offered more cushion than sheet EVA and its density could be changed, making it harder or softer. These companies also learned how to glue things to PU. The first TPU support pieces that functioned like a Varus Wedge came out.In 1978 Nike changed the running market for years to Nike Air Force 1 Femme come. The first Nike Air hit store shelves. With PU as the base material Nike figured out how to insert their Air units into the midsole process. Cushioning felt good. .From 1978 to 1990 or so, the brands learned a lot. They were listening to the demands of runners and were learning new construction techniques. They were also watching each other. Asics came out with Gel cushioning, Brooks introduced HydroFlow and Saucony introduced GRID.

The Nike Air Pegasus 83 Womens runners were asking for more protection. The brands went down two paths: Support and Cushion. The neutral cushion shoes of this time are etched in the minds of runners. The Nike Terra TC, Nike Air Max, Saucony Azura and Asics Epirus (above) were among the favorites. New Balance hit the market with the most advanced and expensive ($100) shoe in history, the 990 (below). The support shoes were Nike Air Max 90 Damen square and heavy. They were not beautiful shoes.During this Nike Air Max 90 Hombre time they also learned a new technique in building running shoes. PU was a great cushioning material but it was heavy. Lightweight was and always will be a factor in building a running shoe. The process started with the EVA in pellets. They could overstuff a mold, add high amounts of pressure and the result was lighter and softer. Compression Molded EVA was born. The brands also started Nike Air Huarache Womens to play with the last or shape of a running shoe. Every brand had a straight lasted shoe for super support, a semi-curved last for moderate support and a curved last for no support. These stability shoes became the staple model at running stores around the world.The race for marketshare was on.
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