Originally Posted by
cujet
Because of my heart issues, my heart rate is always higher than normal. So, I'm not really working hard at all at 140. Jogging results in a 170 HR. That's why I figured that the "zone" was a bit skewed for me. Maybe not.
You might want to look into renting or buying a power meter. It's a
much more precise gauge of how much work you're doing than a heart rate monitor. Also a relatively precise measure of calories expended. The downside is they're pricey and add weight to the bike. In my area, there's a shop that rents wheels equipped with PowerTap SL+ wireless power meters for $35/day or $150/week. Rental fees get applied toward purchase if you decide to buy.