[Problem] To provide a means for strengthening the pubococcygeus muscle that can be used without becoming a burden in daily life, and allows correct contraction of the pubococcygeus muscle without vaginal insertion. [Solution] A girdle is characterized by being provided with: a body section for forming a trunk section that covers the lumber region of a wearer, and a pair of leg sections divided at the base of the crotch so as to cover the thigh regions of the wearer； and a left and right pair of extendable belt-shaped structures having tensile elasticity in the lengthwise direction and extending between at least part of the trunk section and the leg sections. The girdle is further characterized in that the extendable belt-shaped structures each have a section adjacent to the base of the crotch in the inside portion of the leg section that is designated as an active region, and are each provided with a lifting structure for extending from the active region toward the front side of the body, and rising and circling at least to the side sections of the trunk section and leg section. The girdle is further characterized in that when worn, the lifting structures cause the pubococcygeus muscle to contract by applying force to the adductors.L'invention concerne un moyen de renforcer le muscle pubo-coccygien qui peut être utilisé sans devenir un fardeau dans la vie quotidienne, et qui permet les contractions correctes du muscle pubo-coccygien sans insertion vaginale. Une gaine est caractérisée en ce qu'elle comporte : une section corps formant une section tronc qui recouvre la région lombaire d'un porteur et une paire de sections jambes divisées à la base de l'entrejambe de façon à recouvrir les cuisses du porteur ； et une paire de structures extensibles gauche et droite en forme de ceintures ayant une élasticité en traction dans la direction longitudinale et s'étendant entre au moins une partie de la section tronc et les sections jambes. La gaine est de plus caractérisée en
