Define the FITT principles, which are so important in reference to exercise prescriptions.

• A. Fitness, intensity, time, and type
• B. Fitness, imbalances, time, and type
• C. Frequency, imbalances, time, and type
• D. Frequency, intensity, time, and type

Answer: (D)

FITT is a framework used to shape exercise prescriptions. It stands for Frequency, Intensity, Time, and Type. Frequency describes how often you train each week; Intensity refers to how hard you work during those sessions, often guided by heart rate or effort scales; Time is the duration of each session or workout; Type is the kind of activity you perform (aerobic, strength, flexibility, etc.). Together, these four elements let you tailor a program to goals and fitness level and adjust it as progress is made. The other options mix in terms that aren’t variables for structuring workouts—such as Fitness or imbalances—which are outcomes or considerations rather than the prescription levers themselves.