| 摘要 |
An article of footwear (10) having an initial contact portion (30) and a medial/forefoot portion (34). The initial contact portion (30) exterior sole surface is formed at a dihedral angle (38) to the sole surface of the medial/forefoot portion (34) such that the heel portion has a minimal thickness of material interposed between the foot (32) and the ground surface (40) at a postero-lateral edge of the sole structure, which means that foot flight continues until the foot moves closer to the ground (40) to delay impact and increase stride length. A high friction interface (72,172) is provided in a medial/forefoot portion of a shoe insole and low friction interface (74,174) is provided at the initial contact portion (30) of the shoe insole. The low friction area (72) reduces shearing on foot impact, and the high friction forefoot interface (72,172) eliminates sliding of the forefoot during foot push-off, to decrease wasted energy. Energy efficient and stride length increase are achieved.
|
