Originally Posted by blandin

If you're doing it correctly, and you feel the result is far below what you think it should be based on your level of fitness, you may want to see your doctor. I have a condition called "heart block" that lowers my resting heart rate sometimes as low as 40. I have had it completely checked out including undergoing a stress EKG. In my case, my heart performs normally under load, it's only in the resting state that it beats slower than normal. I'm 54 and the cardiologist who did the test told me I had the heart capacity of someone 20 years my junior. In any case, you just might be doing it the wrong way, but if not, and sense I've got direct knowledge of the issue, I thought I'd share it with you.

Here's a web site with some information: http://www.americanheart.org/present...dentifier=4611