The Athlevar Vertical Crunch Machine is a full commercial rated plate loaded resistance machine for complete abdominal training and core training. To perform the vertical ab crunch exercise, the user first sits with arms extended overhead holding the handles and legs locked with shins against the lower roller pads. In one simultaneous motion, the exerciser lifts the lower carriage utilizing the lower abdominal and pulls down the upper carriage using the upper abdominal. The linkage system creates smooth biomechanics for optimal abdominal muscle targeting. The vertical positioning keeps exercisers upright and more comfortable with proper back support while performing an effective crunch motion. More advanced users can train progressively using additional workload resistance (up to 70 pounds (ca. 32 kilogram)) by adding Olympic weight plates to the weight post attached to the upper carriage behind the back pad. Since free weight plates are utilized for resistance, the Vertical Crunch has an advantage over traditional selectorized stack machines by allowing micro-loading in 2.5 pound increments (or even smaller in the case of fractional plates). Built-in weight storage posts attached to the back frame keeps your fitness area orderly and allows weight plates to be easily accessible between sets. Athlevar Vertical Crunch is also designed with a free-swivel seat which allows the user to seamlessly shift from upper and lower ab training of the rectus abdominis muscle group to oblique training without pausing the workout. The seated user simply rotates the seat to the left or right and then performs the same vertical crunching motion. The Vertical Crunch is a perfect stand-alone abdominal trainer for commercial gyms, as well as a great circuit training component for a complete core training zone.