Exercise intensity refers to how much energy is expended when exercising. Perceived intensity varies with each person. It has been found that intensity has an effect on what fuel the body uses and what kind of adaptations the body makes after exercise.
Hold ice to the area for 20 minutes with short breaks in between
facilitating, monitoring,providing and realizing
i am pretty sure that it is the last one. Eustress is seemed to be beneficial, and distress is seemed to be the opposite.
Hope this helps :)