A method of processing vehicle diagnostic data is provided for identifying likely vehicle fix associated with a diagnostic data, and identifying a repair procedure for correcting the likely fix. The integrated circuit includes at least one first signal end and at least one second signal end. A processor determines from the values of distance and time an aerobic capacity, and a measure of exercise level is output to the user based on the calculated aerobic capacity. The valve is for introducing the fluid to the bladder, and the valve is secured to the bladder and accessible from an exterior of the casing. In addition, effective introduction of the mixture requires certain procedures be performed.