Invincible Abs

A young and beautiful Asian fitness model was about to be executed. She was exercising her abs so she would look good when she died. The executioner entered the room and the fitness model told her to proceed with the execution. The executioner stabbed the fitness model in the navel with a knife. The fitness model didn't seem to feel it so she continued her crunches with a knife halfway stuck in her navel. The fitness model was so strong that she even suggested to the executioner to stab the knife all the way to the hilt. After almost 1000 crunches, the fitness model got thirsty and got up to make a drink. She was so polite that she offered some water to her executioner. After she fixed her hair, the fitness model continued her crunches. She then noticed the executioner looked bored and the fitness model suggested that she be stabbed in the middle of her six-pack so she would die faster. The executioner complied and stabbed the fitness model in the middle of her perfect abs.

How many crunches could the fitness model do before she died with knife stuck in the middle of her beautiful six-pack abs?