Heart rate recovery in the first 60 seconds post-interval is a proxy for athletic conditioning.

“so as soon I get to the top of the hill I hit a timer I hit the lap timer and I count how many beats does my heart rate go down in the first 60 seconds at the completion of the interval and that's a great proxy for how I'm doing um so I've got kind of my normal range should be 30 to 35 on a really good day I'm 40 to 45”

“so as soon as I get to the top of the hill I hit a timer I hit the lap timer and I count how many beats does my heart rate go down in the first 60 seconds at the completion of the interval and that's a great proxy for I'm doing um”

“on the last interval I only recovered 18 beats after uh the top so what does that mean well we had a recent podcast with Joel Jameson where we discuss heart rate variability and I think Joel did a great job explaining that um heart rate variability really is a wonderful measurement probably the best infield measurement for the relative balance between sympathetic and parasympathetic control and again these are not kind of digital knobs that are zeros and ones on and off they're really quite analog and when you um have a low heart rate recovery just as if you have a low heart rate variability which is another measure of that it tells you that the balance is more in favor of sympathetic tone”