A shoe is provided for improving use efficiency through reduction of
neuromuscular fatigue. The shoe includes an upper having a generally
horizontal bottom wall. The bottom wall includes an upper surface and a
lower surface. The upper comprises a forward region having a forward
center of loading and a rear region having a rear center of loading. The
shoe further includes a sole comprising a midsole and an outsole. The
midsole comprises a suspension element, which can have a generally
elongated shape. The suspension element further has a center of
compression, which is generally aligned with at least one of the first
and second centers of loading of the upper. The shoe can have a hinge
located within the sole for providing enhanced efficiency to the user.
The hinge and suspension element(s) can take various forms. The position
and structure of the hinge and suspension element(s) in relation to the
midsole can take various forms as well. The biomechanical action of the
heel element, forefoot element and hinge can be dynamically coupled to
create a highly resilient suspension system with a low rate of loading
throughout the stride, thus allowing a natural, "barefoot" gait for the
wearer. As a result, the wearer experiences a significant reduction in
jarring impacts for any phase of the stride, a corresponding reduction in
cumulative fatigue and a lower rate of chronic or traumatic injury. A
method of manufacturing a suspension element for a shoe is also provided,
and includes the steps of providing a die having a length, a width and a
thickness, the length accommodating a plurality of suspension elements;
wrapping a plurality of coated or wetted fibers around the width of the
die to form the suspension elements; drying or curing the fibers to a
substantially integrated form; and separating the plurality of suspension
elements into independent suspension elements.