Resting heart rate is not always equal to performance
Monitoring your resting heart rate is an excellent discipline to integrate with your daily procedures since it can give you some vital information about your fitness. You will start to see a pattern when you have registered your resting heart rate in the morning for a while (months).
There are days with low resting heart rates and days with high values.
Notice long term changes in resting heart rate
The most important observation for you will be that there is some but not a total correlation between resting heart rate and cycling performance.
Minor differences in the same week have nothing to do with improved performance but are a lot more about the level of recovery, sleep pattern, physical and psychological stress level, etc. On the other hand, differences observed over a more extended period (months) might likely be seen because of a central adaptation. Due to a better relaxation (regulated by the autonomic nervous system), there is a better filling of the heart in the diastole and thus a larger stroke volume in the systole.
Don’t compare heart rate values
As I have mentioned a couple of times before: It doesn’t make sense to compare absolute heart rate values with others because we all have different anatomy. For example, I have registered a low resting heart rate of 36bpm in a period with a minimal amount of cardiovascular training.
I wonder how many of you have the same value? That doesn’t matter! You are probably stronger and fitter than I was at that time anyway.
As you can see from the many comments (currently more than 136 comments) to my article ‘What is Your Lowest Heart Rate ever?’, many people around the world have low resting heart rates. Many of the comments illustrate that resting heart rate is a good but not perfect predictor of performance.