140 / 6 = ?
160 / 6 = ?
160 / 6 = ?
1. Calculate the target heart rate range:
- First, subtract the resting heart rate (80 beats per minute) from the upper end of the target range (160 beats per minute):
Target range upper limit - Resting heart rate = 160 - 80 = 80 beats per minute
- Next, subtract the resting heart rate (80 beats per minute) from the lower end of the target range (140 beats per minute):
Target range lower limit - Resting heart rate = 140 - 80 = 60 beats per minute
2. Convert the target heart rate range to beats per second:
- Divide the calculated beats per minute range by 60 (since there are 60 seconds in a minute):
Upper limit in beats per second = 80 beats per minute รท 60 = 1.33 beats per second
Lower limit in beats per second = 60 beats per minute รท 60 = 1 beat per second
3. Calculate the number of beats in 10 seconds:
- Multiply the beats per second values by 10 (as you checked your pulse for 10 seconds):
Upper limit: 1.33 beats per second * 10 seconds = 13.3 beats (rounded to 13 beats)
Lower limit: 1 beat per second * 10 seconds = 10 beats
Therefore, while exercising, the number of beats a forty-year-old woman should have in a 10-second pulse check should be between 10 and 13 beats.