But it must be understood, that unless designed otherwise, i.e. unless the Units of Analysis are chosen from all people, most studies are generalizable only for a much narrower population of the people w/in a nation, region, city, etc.
exercising - the activity of exerting your muscles in various ways to keep fit; the doctor recommended regular exercise; he did some exercising; the physical exertion required by his work kept him fit. exercise, physical exercise, physical exertion, workout.
Definition of exercise for Students. 1  1 : the act of putting into use, action, or practice the exercise of patience. 2  2 : bodily activity for the sake of improving physical fitness. 3  3 : a school lesson or other task performed to develop skill : practice work : drill math exercises.