PROBLEM TO BE SOLVED: To provide a supporter which can train the inner muscles of a wearer by: pressurizing the abdominal part of the wearer from the front to the back upper part causing repulsive force to act on the rectus abdominis muscle positioned at an anterior abdominal part and causing contractile force to act on the inner muscles (particularly, the transverse abdominal muscle and the internal abdominal oblique muscle) connected to the rectus abdominis muscle.SOLUTION: The supporter 100 includes: a body portion 10 surrounding the lower back part of the wearer along a line segment connecting the anterior superior iliac spine 201 and the fifth lumbar vertebra 301 in a side view of a body trunk of the resting standing position of the wearer a bag-shaped housing portion 20 disposed at a part corresponding to between the right and left anterior superior iliac spines 201 of the wearer in the body portion 10 and an expansion part 30 housed in the housing portion 20, for injecting a gas and increasing the volume. The expansion part 30 pressurizes the abdominal cavity of the wearer toward the fifth lumbar vertebra 301 of the wearer.COPYRIGHT: (C)2013,JPO&INPIT【課題】 着用者の腹部を前方から後上方に押圧して、前腹部に位置する腹直筋に反発力を働かせ、腹直筋に繋がる腹部のインナーマッスル(特に、腹横筋、内腹斜筋)に収縮力を働かせて、着用者のインナーマッスルを鍛錬することができるサポーターを提供する。【解決手段】 サポーター100は、着用者の安静立位の体幹側面視における上前腸骨棘201と第5腰椎301とを結ぶ線分に沿って、当該着用者の腰部を包囲する本体部10と、本体部10における着用者の左右の上前腸骨棘201間に対応する部分に配設される袋状の収納部20と、収納部20に収納され、気体を注入して体積を増加させる膨張部30と、を備え、膨張部30が、着用者の第5腰椎301に向けて、当該着用者の腹腔を押圧する。【選択図】 図1
