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.
Explanation:
You forgot to post the options.
<span>Several stressful events occurring at once have no effect on a family.
-False
</span>
Answer:
False
Explanation:
During exercise, the oxygen DOES NOT concentration in the blood increases to twice that of resting levels.
