How does the weight of a person affect their pulse rate after doing exercise?

1 response so far ↓

• 1 jimtem // Apr 6, 2008

  Well it depends on what type of weight. Muscle is vascular and has a less resistant blood flow route. This means that the heart rate recovery will be faster and more efficient because the oxygen debt is easier to repay. A thin person with a lower body composition (more muscle and less fat) will have a faster recovery time because they have less to oxygenate and a faster recovery time. This however does not mean a muscular thin person is in better shape than a thicker muscular person. And as you may have guessed a with a high body composition (more fat and less muscle) has a inefficent, high resistance to blood flow in terms of oxygenation of vascular tissues so they have a longer recovery time. And the heavier they are the longer the recovery time is. So a 5"5' person weighing 150 lbs and a body composition of 10% gets thier heart rate up to 170 and then stops thier activity. They may be at 110 a minute later while a 5"5' person weighing 180 with a body composition of 10% may be at 125 a minute after acivity ceases. A person 5"5' weighing 150lbs with a body composition of 25% may be at 135 a minute after ceasation of activity.

  Size alone can skew a prediction on recovery time if a person is bigger they may have a faster recovery time if they have a lower body composition because they would have a more eficient curculitory system. Now this can be further complicated because a person with a high body composition can also develop an efficient curculatory system if they routinly do high intensity cardio.

  I have seen individuals befor that appear do be in poor health. They are obease but they have a fit cardiovascular system. They do not get out of breath during the work out and have a fast recoverytime for the heart rate.

  So size alone can not predict heart rate recovery because The fitness of the cardiovascular system is a seperate factor. However 99 times out of a hundred size you willbe able to predict someones respiratory strength based on thier appearence, thier size and body composition apperence.

Leave a Comment