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Nike Free Run 3 The traditional running shoes design major consider three factors: comfortable, function, beautiful. Beauty not beautiful vary from person to person we aside from, the so-called comfortable refers to suitable for his own feet, and function is now the key technology of running shoeshttp://www.buynikeauonline.com Now most sports shoes in addition to length and width of the size, this is from the point of view of comfortable. Cheap Nike Shoes Simple method measuring your arch shape will feet wet, stepped on a piece of paper, if can barely see the lateral edge, then you are high arches, if we can see the whole foot type, it may be flat foot arch, and everything in between is normal arch. Arch shape and no quality difference, only that your feet when you are running makes force will be different, so need to select suitable for your arch shape shoes. And running shoes "function", it is each big shoes manufacturers try to study the content of the mining.Nike Free Run 2 Excellent running shoes will consider to biomechanical study. Running shoe design often depends on it the selection of material, sole design, and shape design, including running shoes shoe and insole design is always the focus of biomechanics research. Foot - shoes biomechanics modeling study, at first focus on the key is to establish the structure of the foot, the mathematic model of foot bone anatomy structure the mathematical description of the calculation foot ancient go hard, with the development of computer technology, researchers can analysis of complex foot structure and function. Nike Blazers Womens At the same time, the researchers also through the experiment, the pressure sensors placed inside the shoe mat, measuring try on the running of plantar pressure, based on which the shoes design. Nike OutletThe traditional running shoes are often through the shoes insole materialNike NZAnd its sole structure of energy absorption and release, and at the same time, complete buffer plantar by force of percussion and protect foot health. In other words, heel parts of the damping shock (shockabsorption) and energy feedback efficiency (energyreturn) is the most important function of sports shoes parameters. For shock, general sports shoes company are in the bottom use high elastic material is made, through the material deformation realize buffer shock absorption. For efficient energy feedback, the need to reduce energy loss. Nike Trainers There are several kinds of main considerations: reduce shoes weight; Enhance sole flexibility to reduce toe joint force energy loss; Shoes type structure design enhance ankle make force stability; At the same time the effective damping can effectively reduce the energy loss so running shoes tend to choose light weight, high elasticity materials, such as air cushion, rubber as the bottom material. Each big shoes company for sole have different design, such as Nike by air cushion technology Nike Zoom Kobe Vii，The pressure of the gas compressed into polyurethane material made of sac, now of the Lunar series running shoes, and convert high shock performance of rubber; Adidas is some using viscoelastic resilience foam fitFOAM technology, some are more inclined to use energy feedback POWERBOUNCE technologyNike Blazer UK Mizuno the ap + and infinite wave technology in bottom than ordinary rubber lighter more durable; LiNingZe used the li ning bow suspension system. Nike Free Run 2 Australia These are the traditional concept of running shoes, but in recent years, a new formulation caused by more and more people's attention: some people think that these flaunt the comfortable shock shoes actually may be counterproductive -- running shoes are mostly against the nature to create human nature, make the person relied on heel ankle function, could exacerbate the unhealthy running habits and musculoskeletal force mode. These people's point of view is back to nature, bare feet runNike Blazer Sneakers ——Bare feet run can force our bodies to according to the human body structure and function run. Many see species of shoes, provides the reasonable support and shock in sports to provide more stable performance, let your feet shoes design in accordance with the direction of the bear reasonable mechanics distribution, more suitable for knee injury friends or need to provide more support in friends, suitable for normal foot, the most common running shoes varieties, in the support and damping between too much emphasis on and shock performance, the foot feels aspects relative stable better, but its stability is poor support degree have drop for shock to higher demand friend wearing, suitable for varus and normal foot. Rare varieties of running shoes, general and applicable and flat foot people comfort is higher, the domestic monopoly is quite rare, about going to HK and so on more professional running shoes shop may be available. Cross-country type is relatively rare varieties suitable for general terrain conditions are not complicated mountaineering or relatively poor road conditions, generally speaking, this kind of shoes on and isolation from the sole of the external force due to uneven and produce impact, so the foot feels is hard, is not suitable for the road and flat or pavement good feeling. Nike Shoes NZNike Zoom Kobe ShoesNike Shox NZ