What do you think? http://www.springboost.com/en/ Quote: Biomechanical experts have uncovered the effects of the foot inclination on performance, training and health and have demonstrated positive results when the foot is placed in dorsiflexion position. Studies have shown that the condition of dorsiflexion provides for an increase of energy storage, increased muscle fiber recruitment and an optimal muscle fiber pennation angle leading to improved power during calf muscles exercises, running and jumping activities.
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‘Dorsi Technology’ Running Shoes (?Toning shoes)
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