To calculate your target heart rate range, you can use the formula you've provided:
- Subtract your age from 220 to find your maximum heart rate (MHR).
- Multiply your MHR by the target percentage (0.50 and 0.85) to find your target heart rate range.
For a 17-year-old:
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Calculate Maximum Heart Rate (MHR): \[ MHR = 220 - \text{age} = 220 - 17 = 203 \text{ bpm} \]
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Calculate Target Heart Rate Range:
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Lower end (50%): \[ \text{Lower end} = MHR \times 0.50 = 203 \times 0.50 = 101.5 \text{ bpm} \]
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Upper end (85%): \[ \text{Upper end} = MHR \times 0.85 = 203 \times 0.85 = 172.55 \text{ bpm} \]
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So, for a 17-year-old, the target heart rate range during exercise would be approximately 102 bpm to 173 bpm.
Make sure to perform your workouts within this range to effectively improve your cardiovascular fitness!