Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
199 Doctors are Online

Does regular exercise shorten or prolong QRS duration?

User rating for this question
Answered by

Practicing since : 2004
Answered : 2116 Questions
Do studies show that regular exercise shorten or prolong qrs duration in healthy asymptomatic young men with isolated RBBB ? Does regular exercise make the duration wider or shorter?
Posted Wed, 19 Mar 2014 in Heart Rate and Rhythm Disorders
Answered by Dr. Benard Shehu 3 hours later
Brief Answer: QRS complex shortened during normal exercise. Detailed Answer: Hi, I have gone through your EKG and noticed incomplete block of right bundle. QRS complex shortened during physical activity. Regular exercise does shorten QRS duration. Dr.Benard
Above answer was peer-reviewed by
Follow-up: Does regular exercise shorten or prolong QRS duration? 7 minutes later
You are the only doctor who keeps telling me this is incomplete. I can see 3 complete squares with the QRS in most of the leads. Are you 100 percent sure without any doubt that this is incomplete and why ? I am having this confusion that most doctors say that it is complete without any doubt . Please advise the interpretation you have given me since it shows that the qrs is more than 120 ms ! Thank you for your patience and i would appreciate your feedback .
Answered by Dr. Benard Shehu 5 hours later
Brief Answer: Following answers to your queries... Detailed Answer: Hi back, Thank you for following up. Please bare in mind that the incomplete blockage of right bundle is when QRS is between 100 and 120 ms; while the complete blockage is when QRS is higher than 120 ms. I have measured the QRS "online" and it was 120 ms (within the limitations of online measurement). So, according to the definition, it results an incomplete blockage. As you are saying yourself there are seen 3 complete squares (1 square = 40 ms), which to my calculations the result will be 120 ms. Hope it answered to your queries! Dr.Benard
Above answer was peer-reviewed by
Share on Facebook
Share on Twitter
Share on Google+
Question is related to
Diseases and Conditions

The user accepted the expert's answer

Ask a Cardiologist

© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor