Abdominal and oblique exercise device

An abdominal and oblique exercise device comprising:

• A) at least one lower grip configured to engage the user's lower extremity below the user's waist;
• B) at least one upper grip configured to engage the user's upper extremity above the user's waist;
• C) a cylindrical main body member coupled to the at least one lower grip;
• D) a piston received and configured to reciprocate within the main body member, the piston coupled to the at least one upper grip;
• E) at least one resistance member providing resistance in the reciprocation movement of the piston within the main body member in at least one direction of piston movement;
• F) at least two distinct grooves within one of the cylindrical main body member or the piston and each groove associated with a distinct exercise movement of the user;
• and
• G) a groove following projection on one of the cylindrical main body member or the piston opposite from the grooves and wherein the groove following projection is selectively received in the grooves, and wherein the groove following projection is configured to follow the groove that is associated with the corresponding distinct exercise movement of the user while the user performs the corresponding distinct exercise movement with the exercise device.