The article discusses the physical training program for Diana Prince, a mother of two, to transform herself from unfit to fit within three months. It includes a customized workout plan, fitness test, evaluation method, and data collection. The Karvonen formula is used to calculate the target heart rate for Diana Prince. VO2 max testing method is used to determine the level of intensity of her workout and the number of sets and repetition. Her food and diet will also be changed as per her body type.