F.I.T.T. Principle
A training principle describing an increase in frequency (F), intensity (I), amount of time (T), and type (T) of exercise as these factors correlate to an increase in proficiency and stamina. Each section is used or taken into account when generating a physical fitness plan.
Frequency
The rate at which something occurs or is repeated over a particular period of time.
This refers to how often you participate in physical activity or exercise (daily, weekly, monthly, seasonally etc.).
This refers to how often you participate in physical activity or exercise (daily, weekly, monthly, seasonally etc.).
Intensity
The amount of rigor an exercise puts on your body. It refers to how hard your are working during your work out.
Time
The duration of the exercise or physical activity. This refers to the length of your entire workout and each exercise respectively. Sometimes the amount of time your rest and recovery will be calculated in your fitness plan. If there is no specific amount of time the number of repetitions may be provided.
Type
This part of the principle refers to the type of exercise or physical activity you will be doing. Is my exercise/workout aerobic, anaerobic, etc.? What type of exercise am performing (jump rope, running, free weights, etc.)?