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