Abdominal exercise device

Abstract

An abdominal exercise device includes a collapsible support frame having first and second legs pivotally associated with one another. Non-rotating handles extend from the support frame. A seat is pivotally attached to the support frame between the handles. A bar of adjustable length extends from the seat to a foot rest. A cross-bar is attached to the support frame for limiting backward rotation of the seat, and thus the bar and foot rest. Abdominal muscles are exercised as the user repeatedly pivots the seat backwards and forward.

What is claimed is:  
     
         1 . An abdominal exercise device, comprising: 
 a support frame;    a seat pivotally attached to the support frame;    a footrest associated with the seat, wherein the footrest pivots with the seat; and    a stop associated with the support frame for limiting backward rotation of the seat.    
     
     
         2 . The exercise device of  claim 1 , wherein the support frame is collapsible.  
     
     
         3 . The exercise device of  claim 1 , wherein the support frame generally has an A-frame configuration in an extended state.  
     
     
         4 . The exercise device of  claim 1 , wherein the support frame comprises first and second legs angularly offset from one another.  
     
     
         5 . The exercise device of  claim 4 , wherein the first and second legs are pivotally associated with one another and collapsible.  
     
     
         6 . The exercise device of  claim 1 , including non-rotating handles extending from the support frame.  
     
     
         7 . The exercise device of  claim 1 , wherein the stop comprises a crossbar attached to the support frame.  
     
     
         8 . The exercise device of  claim 4 , wherein the stop comprises a crossbar attached to an upper portion of the second leg below the seat.  
     
     
         9 . The exercise device of  claim 1 , including a bar extending from the seat to the footrest.  
     
     
         10 . The exercise device of  claim 9 , wherein the bar is adjustable in length.  
     
     
         11 . An abdominal exercise device, comprising: 
 a collapsible support frame comprised of first and second legs angularly offset from one another in an extended state;    non-rotating handles extending from the support frame;    a seat pivotally attached to the support frame between the handles;    a bar extending from the seat and adjustable in length;    a footrest attached to an end of the bar generally opposite the seat, wherein the footrest and bar pivot with the seat; and    a stop attached to the support frame for limiting backward rotation of the seat.    
     
     
         12 . The exercise device of  claim 11 , wherein the first and second legs are pivotally associated with one another to form a generally A-frame configuration in an extended in use state.  
     
     
         13 . The exercise device of  claim 11 , wherein the stop comprises a cross-bar attached to the support frame.  
     
     
         14 . The exercise device of  claim 13 , wherein the cross-bar is attached to an upper portion of the second leg below the seat.  
     
     
         15 . An abdominal exercise device, comprising: 
 a collapsible support frame comprised of first and second legs pivotally associated with one another to form a generally A-frame configuration in an extended in use state;    non-rotating handles extending from the support frame;    a seat pivotally attached to the support frame between the handles;    a bar extending from the seat and being adjustable in length;    a footrest attached to an end of the bar generally opposite the seat, wherein the footrest and bar pivot with the seat; and    a cross-bar stop attached to an upper portion of the second leg below the seat for limiting backward rotation of the seat.