A folding collapsible jogging exerciser includes a bottom frame, two upright supports and two handlebars raised from the bottom frame, a top frame fastened to the upright supports and coupled to the handlebars, and a rack having one end pivoted to the upright supports on which the user jogs, wherein...http://www.google.es/patents/US5904637?utm_source=gb-gplus-sharePatente US5904637 - Folding collapsible jogging exerciser
