Zoology - Body Fluids and Circulation Question with Solution | TestHub

In an adult, at rest, the resting heart rate ranges from 60-100 beats/ minute. The vigorous regular exercises which an athlete does helps the heart to function better and pump more blood at a lower rate as compared to the normal sedentary person. The aerobic exercises done by the athletes helps to strengthen the heart muscle and thus reducing the heart rate at rest which otherwise would be higher in a normal adult.