When following an aerobic exercise program, there are three main ways to measure your exercise intensity: Target Heart Rate (THR), Rate of Perceived Exertion (RPE) and The Talk Test. This guide will examine each of these three measures in detail so you can choose which works best for you.
Target Heart Rate (THR) is the most commonly used method for measuring exercise intensity—mostly because it’s easy to do and it’s also precise. Your THR is actually a zone or range that your heart rate should fall within to ensure that you are training aerobically. Training below your target zone may not be intense enough to burn sufficient calories or improve your cardiovascular fitness; while training above your zone means you’re working anaerobically (without oxygen) and inefficiently, which is also too intense for many people, especially beginners.
A Target Heart Rate range is listed in percentages, typically between about 60% and 85% of your maximum heart rate. But how hard you should work depends on your fitness level. In general, beginners should work at a lower range and advanced exercisers should work at a higher range. Keep in mind that some people have exercise restrictions due to injury, health conditions or medications that will affect your recommended intensity level, so always check with your doctor first.
Use the following as a guide for determining your intensity level:
Reference Guide to Exercise Intensity
An In-Depth Look at Heart Rate, RPE and the Talk Test
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