Originally Posted by
terrymorse
Is it reasonable to expect that correct heart rate and power zones ought to roughly match up?
I've been looking at my activity for the last 2 weeks, and it looks like the zone 3+ power times don't match up with the zone 3+ heart rate times.
Zone 3+ Activity:
Heart rate: 40.2%
Power: 51.4%
Think about how heart rate lags power and how you could go over zone 3 power for a second or two (accumulating time there) without heart rate ever changing.