An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

Systems and methods are provided for generating a design for a gliding board. The methods involve operating a processor to: define a desired carved turn of the gliding board; define a desired global curvature profile; generate a desired deformed shape of the gliding board during the desired carved turn; generate a sidecut profile of the gliding board; generate a width profile of the gliding board; generate a camber profile of the gliding board; generate at least one stiffness design variable profile; generate a total load profile; modify at least the width profile, the sidecut profile and at least one of the at least one stiffness design variable profile at least once; and define the design for the gliding board based at least on the width profile, the camber profile, and the at least one stiffness design variable profile.

The presently disclosed subject matter is directed to a pair of skis that exhibit increased speed compared to prior art skis. Specifically, each ski exhibits a reduced projected frontal area to decrease drag force (and thereby increase speed). Each ski includes a plurality of parallel air tunnels that run along the length of the ski from the front end to the rear end. The tunnels enable a significant portion of the air that contacts the front end of the skis to simply pass through the skis. In this way, the projected frontal area of the skis is considerably reduced compared to conventional solid skis. As a result, the ski exhibits increased speed based on the decrease in drag force compared to prior art skis.

A thrust-responsive structure for skis includes a plurality of retractable elements. Each retractable element includes a portion configured to move from an elevated position to a retracted position. Each retractable element further includes a first retention feature. The structure further comprises a matrix surrounding at least a subset of the plurality of retractable elements. The matrix is static relative to the plurality of retractable elements. The matrix includes a plurality of second retention features configured to captively engage the first retention features of the plurality of retractable elements. A position of each retractable element of the plurality of retractable elements, in the elevated position, is limited by contact between the first retention feature and the second retention feature.

The presently disclosed subject matter is directed to a pair of skis that exhibit increased speed compared to prior art skis. Specifically, each ski exhibits a reduced projected frontal area to decrease drag force (and thereby increase speed). Each ski includes a plurality of parallel air tunnels that run along the length of the ski from the front end to the rear end. The tunnels enable a significant portion of the air that contacts the front end of the skis to simply pass through the skis. In this way, the projected frontal area of the skis is considerably reduced compared to conventional solid skis. As a result, the ski exhibits increased speed based on the decrease in drag force compared to prior art skis.

A system and method for providing a ski-snowboard device capable of skinning in an uphill ski mode and skiing in a downhill snowboard mode. The system may include two skis with inner and outer edges having substantially convex side cuts, and an insert that fits into the space between the inner edge side cuts of each of the two skis. The convex side cuts of the inner edges of the skis may have a groove formed in each, and a mating tongue on each side of the insert can fit into the grooves in a downhill snowboard mode. The tongue-and-groove connection may improve the torsional stiffness of the board, and the convex side cuts may allow a user to better grip when skiing and eliminate the step of switching the skis when used as sides of the snowboard.

A steering system for a snowboard includes two binding interface pods, one of which may be active and one of which may be passive. Rotation or tilting of a top plate of the active binding interface pod in response to rotation or tilting of the rider’s steering foot causes counter-rotation of a steering fin under the rider’s steering foot. The passive binding interface pod is responsive via a linkage between the active and passive binding interface pods to cause rotation of a steering fin under the rider’s non-steering foot. Coordinated counter-rotation of the steering fins causes the board to turn in the direction of rotation of the rider’s steering foot when the steering fins are unaligned. Optionally, both binding pods may be active in steering, i.e. enabling two footed steering.

A steering system for a snowboard includes two binding interface pods, one of which may be active and one of which may be passive. Rotation or tilting of a top plate of the active binding interface pod in response to rotation or tilting of the rider's steering foot causes counter-rotation of a steering fin under the rider's steering foot. The passive binding interface pod is responsive via a linkage between the active and passive binding interface pods to cause rotation of a steering fin under the rider's non-steering foot. Coordinated counter-rotation of the steering fins causes the board to turn in the direction of rotation of the rider's steering foot when the steering fins are unaligned. Optionally, both binding pods may be active in steering, i.e. enabling two footed steering.

The present invention relates to, a sliding board, the structure of which comprises at least one lower layer, at least one upper layer, a core, at least one rail delimiting a groove with a top opening for receiving and guiding an anchoring component for a shoe fastening baseplate, wherein it comprises at least one serrated bar separate and spaced apart from the groove of the rail and designed to interact with at least one peripheral toothed sector mounted on the lower surface of the baseplate with a view to preventing its longitudinal translational movement, and to, a fastening device designed to equip said sliding board and a snowboard equipment comprising said sliding board and said device.