Originally Posted by
will dehne
Thanks for the warning.

My problem is finding a Competent Sports Doctor. The doctors I have seen follow your comment of Obese, Smoking and no idea of healthy living. However, I will try again. Perhaps there is a good one in this town with three major Hospitals.

My comment of jerky was an attempt to describe a hyper active feeling. High strung would be another description.
Will - when I asked my cardiologist, who is also a triathlete, if it was OK to go to HRmax he said yes as long as I don't feel dizzy or have any chest pain. The fact that you feel dizzy may be a warning sign.
I found my cardiologist by recommendations from other biker friends in the Sarasota area.
I went to 166 the other evening and felt OK apart from being breathless.
From what I have read, and I don't remember where, 208 -(0.7 X age) is a more accurate formula for estimating HRmax. Mine, at age 69, is 160. HRmin is 46.