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New Member

Date Joined Jun 2012
Total Posts : 2
   Posted 6/11/2012 1:12 PM (GMT -6)   



I am a college professor in exercise physiology. The attached ECG was obtained during a submax treadmill test on a student (rest & recovery shown). Can someone please ‘interpret’ this for me – specifically what appears to be a second S-wave seen in aVF and II (in rest & recovery) and aVL (in recovery).


Also why did QRS switches from mostly positive to mostly negative in aVL?


These two things appeared “abnormal” to me so I searched the internet for an explanation but had no luck.


Note: the subject had a hairy chest and towards the end of the test electrode VI was not sticking very well so he held it in place.


My sincere thanks for your help!!





Elite Member

Date Joined Apr 2007
Total Posts : 32602
   Posted 6/11/2012 1:55 PM (GMT -6)   
I am sorry but we are not qualified to interpret ECG's here in the forum as this is something you would need to have a Medical Dr. provide for you. 
This forum is for peer suport of member's with heart problems and should never take the place of medical advice.
I thank you in advance for your understanding.
Moderator: Anxiety, Osteoarthritis,
GERD/Heartburn and Heart/Cardiovascular Disease.

"I am not afraid of storms for I am learning how to sail my ship" ~ Louisa May Alcott

Post Edited (stkitt) : 6/11/2012 5:39:06 PM (GMT-6)

New Member

Date Joined Jun 2012
Total Posts : 2
   Posted 6/11/2012 2:05 PM (GMT -6)   
Fair enough, thank you for the explanation. Sorry for the inconvenience.
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