NOVELTY - The apparatus has a main chassis for supporting a resistance mechanism and a standing platform (25). A rear stand is attached to a posterior portion of the main chassis, and has sufficient height to provide both ground clearance and stability to the posterior portion of the main chassis. A front stand is attached to a mid section of the main chassis, and has equal sufficient height as the rear stand to provide the ground clearance and stability to an anterior portion of the main chassis. A set of fasteners attaches the standing platform to the main chassis.    USE - Exercise apparatus for toning a rectus abdominis muscle, oblique abdominis muscle and erector spinae muscle of a human body. Can also be used for toning a biceps brachii muscle, biceps femoris muscle, pectoralis muscle, latissimus dorsi muscle, gluteal muscle and triceps brachii muscle.    ADVANTAGE - The apparatus allows an individual to perform abdominal crunches by bending a waist and pushing a vertical riser downwards against the resistance of the crunch mechanism and to stand upright on the platform, provides an adjustable height for the handlebars to accommodate different heights of the individuals and to allow the individual to achieve a comfortable grasp of the handlebars while exercising, and releases vertebral fixations and loosens tight back muscles in a chiropractic fashion, thus allowing the individual to do the exercises in a safe manner.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a method for using a vertical abdominal crunch mechanism    (2) a method for dynamically increasing resistance in the abdominal crunch mechanism    (3) a method for decreasing the resistance in the abdominal crunch mechanism.    DESCRIPTION OF DRAWING(S) - The drawing shows an isometric perspective view of a vertical abdominal crunch mechanism.    Vertical abdominal crunch mechanism (1)    Battery powered abdominal crunch resistance pump (22)    Flexible pressure hose (23)    Battery powered abdominal crunch resistance pump activation button (24)    Standing platform (25)