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briggetteac

Answer:

Target heart rate is generally expressed as a percentage (usually between 50 percent and 85 percent) of your maximum safe heart rate. The maximum rate is based on your age, as subtracted from 220. So for a 50-year-old, maximum heart rate is 220 minus 50, or 170 beats per minute.

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ggovalle329
50 - 85 percent to have a safe heart I was going to give a long explanation but someone already explained it good and detailed

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