Answer: amount of effort being put into the workout
Step-by-step explanation:
The F.I.T.T principle is a workout plan that can be used to achieve a fitness goal. It includes the frequency, intensity, time and type of exercise performed.
The intensity of the exercise is dependent upon the hard work and effort that a person puts in during the exercise. The moderate to high-intensity exercises are included in strength and cardiovascular training. High intensity can sometimes lead to injury due to overexercise.