The fitt principles of training include a. fundamental, intensity, time, and type b. frequency, intensity, time, and type c. frequency, individual, time, and type d. frequency, intensity, tough, and time

The FITT principles include Frequency, Intensity, Time, and Type. If you take the first letter from each word that gives you FITT. The frequency term just factors in how often you train. The intensity is how much you train with and the amount of effort you need for the work out. The time is how long you conduct each training session. The type is the kind of training and what you want to focus on .

Stimulants speed up the central nervous system.