Which factor does not belong to the FITT principle?

The FITT principle is a guideline for creating an effective workout regimen, and it stands for Frequency, Intensity, Time, and Type. Each of these components plays a crucial role in developing a well-rounded fitness program.

Frequency refers to how often an individual engages in physical activity, indicating the number of sessions per week. Intensity relates to how hard the exercise is performed, which is vital for achieving specific fitness goals. Time indicates the duration of each workout session, and Type refers to the kind of exercise being performed, ensuring that various activities are included for a balanced approach to fitness.

"Focus" is not part of the FITT principle, as it does not specify any measurable or actionable aspect of a workout plan. While focus is important in the broader context of motivation and mental preparation for fitness, it does not fit within the specific components outlined by the FITT principle. Thus, identifying "Focus" as a factor that does not belong to FITT is correct based on the standardized definitions of the key components involved in fitness planning.