Every individuals have different needs and purposes in dong exercises. For example, if you are a rowing athletes, your exercise programs would be focused on strengthening your lower body. No matter how well you design this, rowing athlete's exercise program would not be efficient for marathon athlete.
No matter how much a program is shaped, it cannot be tailored for every single individual. Everyone needs a program specifically molded to fit their needs based on their caloric intake, metabolic rate, and other factors unique to the individual.
