Summaries for Patients |

Heart Rate Recovery after Submaximal Exercise Testing as a Predictor of Mortality in a Cardiovascularly Healthy Cohort FREE

[+] Article, Author, and Disclosure Information

The summary below is from the full report titled “Heart Rate Recovery after Submaximal Exercise Testing as a Predictor of Mortality in a Cardiovascularly Healthy Cohort.”. It is in the 4 April 2000 issue of Annals of Internal Medicine (volume 132, pages 552-555). The authors are C.R. Cole, J.M. Foody, E.H. Blackstone, and M.S. Lauer.

Ann Intern Med. 2000;132(7):552. doi:10.7326/0003-4819-132-7-200004040-00041
Text Size: A A A

What is the problem and what is known about it so far?

Researchers have shown that the time it takes for the heart rate to return to normal after exercise (heart rate recovery) is associated with a person's risk for death. The longer it takes for the heart rate to return to normal, the greater the risk for death. This relation has been demonstrated only in people with known cardiovascular disease. It is unknown, however, whether the same relation between heart rate recovery and risk for death exists in healthy people.

Why did the researchers do this particular study?

The researchers wanted to find out whether, in healthy adults, the time it takes for heart rate to return to normal after exercise is associated with the risk for death.

Who was studied?

The researchers studied 5234 adults who had no known cardiovascular disease and were participating in a large study of the frequency of high cholesterol levels in people who live in North America.

How was the study done?

The researchers had each person in the study exercise on a treadmill according to a standard protocol. The researchers had the people exercise until they reached 85% to 90% of the predicted maximum heart rate for a person their age. They then recorded the fastest heart rate that the patient had during this exercise and the heart rate 2 minutes later. Heart rate recovery was the difference between these two heart rates. If the heart rate did not slow by at least 42 beats per minute during this 2-minute period, the person was considered to have abnormal heart rate recovery. The researchers then followed patients for an average of 12 years to see who died.

What did the researchers find?

Even after accounting for other risk factors for death, people who had abnormal heart rate recovery were still 1.5 times more likely to die than people who had normal heart rate recovery.

What were the limitations of the study?

This study does not explain why heart rate recovery is associated with the risk for death. It also does not tell us whether improving heart rate recovery by fitness training or some other means would decrease a person's risk of death.

What are the implications of the study?

Heart rate recovery is a relatively simple measure that can help predict the risk for death. It may make sense to include this measure into the routine interpretation of exercise tests.





Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).


Submit a Comment/Letter
Submit a Comment/Letter

Summary for Patients

Clinical Slide Sets

Terms of Use

The In the Clinic® slide sets are owned and copyrighted by the American College of Physicians (ACP). All text, graphics, trademarks, and other intellectual property incorporated into the slide sets remain the sole and exclusive property of the ACP. The slide sets may be used only by the person who downloads or purchases them and only for the purpose of presenting them during not-for-profit educational activities. Users may incorporate the entire slide set or selected individual slides into their own teaching presentations but may not alter the content of the slides in any way or remove the ACP copyright notice. Users may make print copies for use as hand-outs for the audience the user is personally addressing but may not otherwise reproduce or distribute the slides by any means or media, including but not limited to sending them as e-mail attachments, posting them on Internet or Intranet sites, publishing them in meeting proceedings, or making them available for sale or distribution in any unauthorized form, without the express written permission of the ACP. Unauthorized use of the In the Clinic slide sets will constitute copyright infringement.


Want to Subscribe?

Learn more about subscription options

Related Articles
Journal Club
Topic Collections
PubMed Articles
Forgot your password?
Enter your username and email address. We'll send you a reminder to the email address on record.