In order to achieve maximum results from aerobic exercises, one should maintain ones heart rate at a certain level. A 45 year old women with resting heart rate of 70 beats per minute should keep her heart rate between 135 and 154 beats per minute while exercising. She checks her pulse for 10 sec while exercising. what should the number of beats be?
The number of beats in 10 sec should be between ___ and ___ beats?
135/6 = ?
154/5 = ?
To determine the range of beats a 45-year-old woman should aim for in a 10-second pulse check while exercising, we can follow these steps:
1. Calculate the maximum heart rate:
- Subtract the person's age from 220.
- For a 45-year-old woman, the maximum heart rate would be 220 - 45 = 175 beats per minute (bpm).
2. Calculate the lower and upper boundaries of the target heart rate range:
- Multiply the maximum heart rate by the lower and upper percentages.
- For a 45-year-old woman, the lower boundary would be 175 * 0.77 = 134.75 bpm (approximately 135 bpm).
- The upper boundary would be 175 * 0.88 = 154 bpm.
3. Convert the lower and upper boundaries to the number of beats in 10 seconds:
- Divide the bpm values by 6 (since there are 60 seconds in a minute and we want the value for 10 seconds).
- The number of beats in 10 seconds should be between 134.75 / 6 = 22.46 bpm (approximately 22-23 beats) and 154 / 6 = 25.66 bpm (approximately 26 beats).
Therefore, the number of beats in 10 seconds should be between 22 and 26 beats.