Answer:
Intensity
Step-by-step explanation:
INTENSITY can be defined as the amount of effort or the percentage of the maximum effort that a person or an individual put into the exercise they are doing, including the quality of the exercise, how hard or how stressful the exercise is .
Example the higher the work an athlete performs , the higher the intensity of the exercise carried out by the athlete will be. Secondly the INTENSITY of a person or an individual exercise can as well be measured as a percentage of their maximum heart rate.