What are the FITT factors?

• A. Frequency, duration, intensity, and speed.
• B. Frequency, intensity, time, type.
• C. Mobility, training, injury prevention, and recovery.
• D. Volume, tempo, effort, and repetitions.

Answer: (B)

The FITT framework is a way to tailor an exercise program by adjusting four levers: Frequency, Intensity, Time, and Type. Frequency is how often you train each week, Time is how long each session lasts, Intensity is how hard you work (often guided by heart rate or perceived effort), and Type is the kind of activity you do (aerobic, strength, flexibility, etc.). These four factors together set the overall training load and determine how your body adapts. For example, you might start with moderate intensity, 30 minutes per session, three times a week, and choose a type like brisk walking or cycling. As you progress, you can increase any of those elements—increasing duration or frequency, raising intensity, or adding a different type of workout—to continue improving. The other options don’t fit the framework: one swaps in speed for Type, which changes what you’re prescribing; another lists broader concepts like mobility or recovery rather than the core prescription variables; and another mixes terms like volume, tempo, effort, and repetitions, which are training variables but not the FITT four.