Abstract: A sole structure for a footwear article includes a system of support structures. Each support structure includes a tubular body with an inwardly curving wall, which compresses under load to attenuate a force or impact and returns to a resting state when the load is removed.

Abstract: An article of footwear has a sole structure including a heel cushioning unit. The heel cushioning unit has a top portion, a bottom portion, a body portion connecting the top portion to the bottom portion, medial support fins in a medial side recess at a medial side of the heel cushioning unit and lateral support fins in a lateral side recess at a lateral side of the heel cushioning unit. Both the medial support fins and the lateral support fins extend transversely outward from the body portion and extend from the top portion to the bottom portion. The heel cushioning unit defines a through hole extending from the medial side to the lateral side and disposed rearward of the medial support fins and the lateral support fins. The article of footwear has an outsole with arch portions defining stepped ridges extending lengthwise in a fore-aft direction of the sole structure.

Abstract: A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.

Abstract: A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.

Abstract: A sole structure for an article of footwear includes an upper cushioning element including a first material having a first durometer, a lower cushioning element including a second material having a second durometer and defining a plurality of first engagement elements, and a plate disposed between the upper cushioning element and the lower cushioning element, the plate including a plurality of second engagement elements cooperating with the first engagement elements to position the plate with respect to the lower cushioning element.

Abstract: A dynamic belt-tensioning apparatus for a treadmill includes a base having a first end and a second end spaced from the first end. A foot-striking platform is movably supported by the base so as to allow for vertical movement of the platform during operation of the treadmill. A drive belt has a fixed circumference and is positioned above a top portion of the platform. A drive roller is pivotally mounted adjacent to the first end of the base and engages the drive belt. A bell crank is pivotally coupled to the platform such that pivoting of the bell crank translates into movement of a tensioning roller that is pivotally mounted to the base and that is capable of a range of movement to provide substantially constant tension to the drive belt in response to vertical movement of the platform.

Abstract: A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.

Abstract: A pair of sole plates for a complementary pair of articles of footwear may generally include a first article with a first sole plate and a second article with a second sole plate, where the first sole plate is asymmetrical with respect to the second sole plate. The first sole plate includes a first groove that extends along a first lateral side of the first sole plate, and the second sole plate includes a second groove that extends along a second medial side of the second sole plate. The asymmetry of first sole plate with respect to second sole plate may improve performance, flexibility, and agility during running and in particular, during athletic events along a curved track.

Abstract: An article of footwear has a sole structure including a heel cushioning unit. The heel cushioning unit has a top portion, a bottom portion, a body portion connecting the top portion to the bottom portion, medial support fins in a medial side recess at a medial side of the heel cushioning unit and lateral support fins in a lateral side recess at a lateral side of the heel cushioning unit. Both the medial support fins and the lateral support fins extend transversely outward from the body portion and extend from the top portion to the bottom portion. The heel cushioning unit defines a through hole extending from the medial side to the lateral side and disposed rearward of the medial support fins and the lateral support fins. The article of footwear has an outsole with arch portions defining stepped ridges extending lengthwise in a fore-aft direction of the sole structure.

Abstract: A sole structure for a footwear article includes a system of support structures. Each support structure includes a tubular body with an inwardly curving wall, which compresses under load to attenuate a force or impact and returns to a resting state when the load is removed.

Abstract: A sole structure for a footwear article includes a system of support structures. Each support structure includes a tubular body with an inwardly curving wall, which compresses under load to attenuate a force or impact and returns to a resting state when the load is removed.

Abstract: A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.

Abstract: A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.

Abstract: A dynamic belt-tensioning apparatus for a treadmill includes a base having a first end and a second end spaced from the first end. A foot-striking platform is movably supported by the base so as to allow vertical movement of the platform during operation of the treadmill. A drive belt has a fixed circumference and is positioned above a top portion of the platform. A drive roller is pivotally mounted adjacent to the first end of the base and engages the drive belt. A tensioning roller is pivotally mounted to the base and is capable of a range of movement to provide substantially constant tension to the drive belt in response vertical movement of the platform.

Abstract: A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.

Abstract: A dynamic belt-tensioning apparatus for a treadmill includes a base having a first end and a second end spaced from the first end. A foot-striking platform is movably supported by the base so as to allow vertical movement of the platform during operation of the treadmill. A drive belt has a fixed circumference and is positioned above a top portion of the platform. A drive roller is pivotally mounted adjacent to the first end of the base and engages the drive belt. A tensioning roller is pivotally mounted to the base and is capable of a range of movement to provide substantially constant tension to the drive belt in response vertical movement of the platform.

Abstract: A pair of sole plates for a complementary pair of articles of footwear may generally include a first article with a first sole plate and a second article with a second sole plate, where the first sole plate is asymmetrical with respect to the second sole plate. The first sole plate includes a first groove that extends along a first lateral side of the first sole plate, and the second sole plate includes a second groove that extends along a second medial side of the second sole plate. The asymmetry of first sole plate with respect to second sole plate may improve performance, flexibility, and agility during running and in particular, during athletic events along a curved track.

Abstract: A pair of sole plates for a complementary pair of articles of footwear may generally include a first article with a first sole plate and a second article with a second sole plate, where the first sole plate is asymmetrical with respect to the second sole plate. The first sole plate includes a first groove that extends along a first lateral side of the first sole plate, and the second sole plate includes a second groove that extends along a second medial side of the second sole plate. The asymmetry of first sole plate with respect to second sole plate may improve performance, flexibility, and agility during running and in particular, during athletic events along a curved track.

Abstract: A sole structure for a footwear article includes a system of support structures. Each support structure includes a tubular body with an inwardly curving wall, which compresses under load to attenuate a force or impact and returns to a resting state when the load is removed.

Abstract: A dynamic belt-tensioning apparatus for a treadmill includes a base having a first end and a second end spaced from the first end. A foot-striking platform is movably supported by the base so as to allow vertical movement of the platform during operation of the treadmill. A drive belt has a fixed circumference and is positioned above a top portion of the platform. A drive roller is pivotally mounted adjacent to the first end of the base and engages the drive belt. A tensioning roller is pivotally mounted to the base and is capable of a range of movement to provide substantially constant tension to the drive belt in response vertical movement of the platform.