Calculation of average heart rate based on the distribution of heart rate zones

Many athletes use average heart rate as an important training metric, but there are times when your heart rate monitor is not functioning well or you just forgot to take it with you. We know how frustrating these situations are and we continuously develop better algorithms for automated replacement of your missing heart rate data.

Sportlyzer’s formula of average heart rate is based on the time spent in heart rate zones. Therefore, we see it as the next step for the automated calculation of distribution of heart rate zones. Why is this important at all? Because this way you can replace your missing heart rate monitor data by just answering a question „How hard was your workout?“ by dragging a slider control on a scale of 1 to 10.

Remember that all the heart rate data replacement calculations are approximate and we are still actively developing these. Whenever you are using the automated calculation of heart rates, we advise you to check the outcomes and correct the numbers manually if needed.

Tõnis Saag

Tõnis is the founder of Sportlyzer.com. He was an active sports karate athlete, representing the Estonian National Team 53 times over a 10-year period and winning numerous international tournaments and Estonian Championships. Tõnis was a certified youth coach for 13 years, working constantly with 100+ athletes. Half of that time he was also responsible for their club's development and daily administration. He was also a co-author of the first Estonian textbook for karate coaches and a board member of the Estonian Karate Federation for 2 years. Before starting with Sportlyzer, Tõnis founded and managed functional testing and sports medicine lab Vomax.ee.

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