Nike Air Max 90 Mens running shoes were developed to allow the feet to move more freely. The natural movement of the feet strengthen the ankles and feet and improves flexibility. A stronger more flexible lower body enhances the persons athletic performance and helps to prevent injuries. These shoes have become very popular with runners because of the increased strength and better performance they bring about.The Nike Air Max 90 Womens running shoes are a style of barefoot running shoes, that is, they simulate going barefoot. The theory is that by going barefoot our body moves as it was naturally designed. The human foot has evolved over millions of years, by using shoes we alter the movement of the foot away from its natural movement as intended by evolution. The change of movement caused by shoes causes sprains, shin splints and other common foot injuries.Runners are advised to break gradually into using Nike free running shoes. Since the movement of the foot will be different from with other shoe styles there will be a period of adjustment and at first there could be some muscle cramps and other discomforts, especially if the new shoes are overused at first. As the foot adjusts to the new shoe style its use can be gradually increased. Nike Air Max 90 EM Womens Cheap Sale Overtime the runner should notice more strength and flexibility in the feet and ankles which should help with performance.
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