The present invention relates to a stud (3) comprising: - a base for fixing to a sole (2) of studded shoes, this base coming to bear against the underside of the sole, - a stud body, defining at least partially the external surface, - a connecting part connecting the body to the base, so as to allow the body to move relative to the base under the effect of a force exerted on the body of the crampon by the wearer of the shoe, - at least one sensor sensitive to a movement of said body and / or to a deformation of the connecting part during this movement.
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