Patent ID: 7874969

Claim:
An abdominal muscle training device comprising: a base portion having an upper footplate and a fixed lower section, said upper footplate being mounted for rotation on said fixed lower section; a resistance member comprising a spring, said resistance member being generally upstanding from the base portion; and a plunger arranged for vertical downward motion against the resistance of the resistance member; and a generally tubular housing for the resistance member said housing upstanding from the base portion and having an upper end comprising an annular cap provided with at least one bearing to facilitate motion of the plunger relative to the housing, said housing being further adapted to accommodate a lower part of the plunger when said plunger is depressed; wherein said spring is mounted within the housing and has a lower end attached to said base portion and an upper end provided with a head element, said head element being adapted for connection to said plunger; wherein said plunger has a lower end comprising a retaining element adapted to prevent inadvertent removal of said lower end of said plunger from said housing; and wherein said upper footplate is adapted to support a user in a standing position from which position said user can perform exercise against the resistance of the resistance member by manually applying a downwardly force to depress the plunger.