High Heartrates and HR Zone training

[OakLeaf]

Okay, I still don't see it being super high, if you were working hard as you say, especially considering the heat (if MotionBased was accurate about the temp)?

But, what the others said about your resting HR. If 67-75 is truly your resting rate (as soon as you wake up in the morning, or for a close approximation after you've been relaxing for at least an hour), that is kind of high. If you've noticed your resting HR getting higher lately, that's a red flag for overtraining.

You don't have to count, just have a stopwatch or kitchen timer set for one minute (or 30 seconds and multiply by 2).