Inflatable exercise device

Abstract

An inflatable unitary construction hemispherical or dome-shaped flat-bottomed exercise device analogous to an exercise ball having a flat and relatively stable surface to improve its usefulness to people who cannot control fully round prior art exercise balls.

1 . An exercise device comprised of: 
 a flexible bladder, sized, shaped and arranged to take the form of a hemisphere when the flexible bladder is at least partially filled with air, the substantially hemispheric bladder having a substantially flat surface for placement onto a floor or other flat surface.    
     
     
         2 . The device of  claim 1 , wherein the flexible bladder is further comprised of at least one inflation valve for filling the bladder with air or other gas.  
     
     
         3 . The device of  claim 1 , wherein the flexible bladder is made of a polymeric substance or a vulcanized rubber material.  
     
     
         4 . The device of  claim 1 , wherein the flexible bladder is poly vinyl chloride (PVC).  
     
     
         5 . The device of  claim 4 , wherein the PVC is approximately 2 mm thick.  
     
     
         6 . The device of  claim 1 , wherein the device weighs less than 1200 g.  
     
     
         7 . The device of  claim 1 , wherein the interior radius of the inflated and unloaded hemisphere is less than 6 inches.  
     
     
         8 . The device of  claim 1 , wherein the diameter of the flat surface of the device is less than 17 inches.