An exerciser including a base frame with a seat pad. A leg support is pivotally inward foldably connected with two ends of a bottom face of the base frame. The leg support has a front arch section, a rear horizontal section and a vertical section. Two ends of a rear side of the base frame are respectively...http://www.google.es/patents/US6220995?utm_source=gb-gplus-sharePatente US6220995 - Exerciser
