# What does subtracting your age from 220 and then multiplying 0.9 calculate?

goal heart rate

### What should a persons target heart rate be for moderate-intensity physical activity?

To calculate a target heart rate for exercise, first determine the maximum heart rate by subtracting the person's age from 220. For instance, a twenty year olds maximum heart rate is 220 minus 20, or 200. The target heart rate for moderate intensity exercise is 50-70% of the maximum. This is calculated by multiplying 200 by 0.50 and by 0.70. This gives you a target heart rate range of 100-140.

### How do you calculate your MHR?

Subtract your age from 220. For example, a 40-year-old woman has a maximum heart rate of 220 - 40 = 180 beats per minute. Multiply your maximum heart rate by 0.6 to get your lower-limit exercise heart rate. Calculate your upper-limit exercise heart rate by multiplying your maximum heart rate by 0.9. The lower-limit number and the upper-limit number are the range your heart should be in while you exercise.

### How do you calculate a horses age?

By subtracting the year it was born from the current year. There is no way to "calculate" a horses age. However, if you want to approximate a horses age, then checking their teeth will give you a decent idea - there is a line that appears as a horse ages, and then begins to disappear later in life. While it cannot give you a very accurate (to the year) age, it's length can give you…

### How do you know how old you are?

Your age is the time elapsed since you were born. You can calculate your age in years on any given date by subtracting the year you were born from the year in which you last had a birthday. Example: if you were born on January 1, 1995, you turned 20 on January 1, 2015 (2015-1995 = 20) The subtraction of your birth year from the current year gives you your age on your birthday this…

### How do you calculate heart rate with maximum and minimum rates in exercising?

The idea is to calculate your 'fat burning zone' and exercising within your target heart rate (THR). Generally this zone is 60-75% of your max heart rate (MHR). To calculate your THR, simply subtract your age from 220, then multiply by the % in which you wish to work. So for a 40 year old person, the target zone will look something like this: 220 - 40 (age)= 180 (Max Heart Rate) At this point…