Familiarity with the various components and functions of a running shoe, the aid in the purchase of a pair. There are some basic parts that are stressed when you should have a pair.
The sole is the underside of the shoe, in contact with the ground. This durable rubber provides the drive needed, depending on the event and also absorbs shock. Good shock absorption is the key to reducing injuries.
The upper part of the shoe is made of breathable plastic. This partthe shoe is usually the most flexible. Further note that many designs will be placed in upper part, which really serve to make the top bend easily, and were not designed just to make the shoe look "cool." There is a focus on durability to the leather upper, because this part wears out faster than the other parts of the shoe.
The middle sole is placed on the bottom and serves as a cushion over the entire foot. It provides stability and absorbs shock. Middle soles are usuallyof ethyl-vinyl acetate (EVA), the tiny bubbles that provide additional damping. The heel is supported against the rigid part under the shoe, the rear part of the foot. The toe box should have enough wiggle room for your feet, because they tend to expand after a vigorous workout.
The insole is the inner part of the shoe is the lining, the surfaces and protects the inside of the shoe. It provides the feet with extra padding. It can be replaced with orthoses forcases of special need, such as motion control for flat feet.
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