Patent ID: 8727955

Claim:
An abdominal exercise device comprising: two operating mechanisms, each of which includes an outer housing, a grip disposed at an end of said outer housing, and a rolling unit disposed at an opposite end of said outer housing, each of said outer housings of said operating mechanisms having two opposite first sidewalls, said grips of said operating mechanisms being adapted to be movable upwardly and downwardly relative to the body of a user; and two connecting mechanisms each connected between said operating mechanisms such that said connecting mechanisms cooperate with said operating mechanisms to form a looped structure, each of said connecting mechanisms including an elastic connecting piece extending from one of said first sidewalls of one of said outer housings into an adjacent one of said first sidewalls of the other of said outer housings, and a plurality of sliding units sleeved movably on said elastic connecting piece, said sliding units of said connecting mechanisms being movable together with said grips of said operating mechanisms.