Abstract: A jogging apparatus comprising a tubular frame, an elastomeric member bonded to the frame and a mat bonded to the elastomeric member when the elastomeric member is preloaded radially inwardly so that when the load on the elastomeric member is released, the mat is tightly stretched on the frame to provide the jogging surface. Circumferentially spaced legs are pivoted to the inner surface of the frame and which, in operative position, have portions extending radially outwardly and downwardly and which are foldable inwardly within the plane of the jogging apparatus. The legs are mounted by a construction which tends to urge the legs yieldingly outwardly when they are extended and tends to urge the legs yieldingly inwardly when they are folded inwardly.