How to solve worded problems involving maximum, target & resting heart rates (MHR, THR, RHR)

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*Maximum Heart Rate (MHR):* This is the highest number of heartbeats per minute that an individual can achieve during intense physical activity. A commonly used estimate for maximum heart rate is 220 minus your age. However, individual variations exist, and some people may have a higher or lower maximum heart rate than what this formula suggests.

*Resting Heart Rate (RHR):* This is the number of heartbeats per minute when your body is at rest, typically measured when you wake up in the morning before engaging in any physical activity. A lower resting heart rate is often considered a sign of good cardiovascular health and fitness. Regular exercise and other factors can contribute to a lower resting heart rate.

*Target Heart Rate (THR):* This is a range of heart rates that is often recommended during aerobic exercise to ensure that you are working at a level that is intense enough to benefit your cardiovascular system. The target heart rate zone is usually expressed as a percentage range of your maximum heart rate. Commonly recommended target heart rate zones are typically between 50% and 85% of your maximum heart rate.

Here's a general formula to calculate target heart rate:

Target Heart Rate = Percentage × MHR

For example, if you want to work out at 70% of your maximum heart rate, you would calculate it as:

Target Heart Rate = 0.7 × MHR

It's important to recognise that these are general guidelines, and individual variations may exist. Additionally, factors such as fitness level, health conditions, and medications can influence your heart rate response to exercise. If you have any concerns or specific health conditions, it's advisable to consult with a healthcare professional or a fitness expert to determine a safe and effective target heart rate range for your exercise routine.