During physical activity of high Intensity, your heart will beat at a percentage of its maximum rate. Which range shows the correct percentages
during this type of activity?
A.
40%-50%
B.
50%-70%
C.
70%-85%
D.
85%-10096

C.

70%-85%

Explanation:

In sports, heart rate (HR) is used to evaluate the intensity of exercise. There is a linear relationship between heart rate and load intensity. Maximum heart rate (HRmax) is the maximum number of contractions a heart can perform in 1 minute. Maximum heart rate can vary significantly in different people. The American Heart Association  recommends a target heart rate of hight intensity exercise: 70% to about 85% of your maximum heart rate

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.