Heart Rate Training

Plotting Performance—Beat By Beat

Monitoring your heart rate allows you to maximize the effectiveness of your training time. It helps you to adjust your effort so that you can achieve the goals of each workout. The first step is to determine your Maximum Heart Rate (MHR) and Resting Heart Rate (RHR) so that you can use them to establish your Training Heart Rate Range (THRR). One way to do this is to have a stress test done. Your physician can then tell you what your maximum and resting heart rates are and what training range would be best for you. The other way is to use the mathematical formulas explained below, which will give you a pretty good approximation.

To estimate your maximum heart rate, you can use the rule of thumb that your maximum heart rate (MHR) is 220 minus your age. You can find your resting heart rate (RHR) by lying down or sitting still for a while and then taking your pulse (do this several times and take the average for greater accuracy). By subtracting RHR from MHR, you will determine your heart rate reserve (HRR). You can then calculate your training heart rate range by taking prescribed percentages of this HRR and adding them back to your RHR. Specifically, for aerobic training you will take 50-75% of your HRR and add it to your RHR to get your training heart rate range. For anaerobic threshold training you will take 80-85% of the HRR and add it back to your RHR to get your training range. The following examples will show you how to do this. Then you can use the worksheet provided to calculate your own values.

Aerobic Training Heart Rate Range

Let’s say you are 50 years old, with a resting heart rate of 60. Using 220 minus your age, 220 - 50, you calculate a MHR of 170. Subtracting RHR from MHR, you get 170 - 60 = 110 for your HRR. Your aerobic training heart rate range will lie between 50% and 75% of your HRR: 50% of 110 = 55; 75% of 110 = 83. Adding these figures back on to your resting heart rate gives: 60 + 55 = 115 and 83 + 60 = 143. Thus your aerobic THRR is 115 to 143 beats per minute. If you exercise below 115, you will decrease the efficiency of your workout. If you exercise above 143 for any length of time, you will feel some stress.