Athletic shoe with an enhanced mechanical advantage

Claim 1

An athletic shoe constructed for comfort and to give a mechanical advantage to its user, said shoe comprising: (a) an upper member; and (b) a sole member connected to the upper member, said sole member characterized in having (i) a substantially flat bottom surface throughout its length, (ii) a lateral inwardly concave channel in the bottom surface extending substantially across the metatarsal area of the user's foot, (iii) a set of longitudinally running inwardly concave channels in the sole's bottom surface extending from near the lateral channel to near the sole member's forward extremity, and (iv) a plurality of vertically extending grooves in both walls of the sole member extending from about the head of the metatarsal area to about the base of the metatarsal area of the user wherein each of the vertically extending grooves further has a round indentation at the lower end of the indentation to induce a substantially equal dissipation of stress vectors resulting from a compression of the sole member during use.