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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. [tex]$40 \%-50 \%$[/tex]
B. [tex]$50 \%-70 \%$[/tex]
C. [tex]$70 \%-85 \%$[/tex]
D. [tex]$85 \%-100 \%$[/tex]



Answer :

GinnyAnswer
High-intensity physical activity involves exercising at a significant portion of your maximum heart rate. The correct range that shows the percentage of maximum heart rate for high-intensity activity is:

C. [tex]\( 70\% - 85\% \)[/tex]

Here's the reasoning behind it:

1. Understanding Maximum Heart Rate: The maximum heart rate (MHR) is a theoretical number based on your age. It's typically calculated as [tex]\( 220 \)[/tex] minus your age.

2. Intensity Levels:
- Low Intensity: Activities that raise the heart rate to about [tex]\( 40\% - 50\% \)[/tex] of the MHR.
- Moderate Intensity: Activities that raise the heart rate to about [tex]\( 50\% - 70\% \)[/tex] of the MHR.
- High Intensity: Activities that raise the heart rate to about [tex]\( 70\% - 85\% \)[/tex] of the MHR.
- Very High Intensity: Activities that push the heart rate to [tex]\( 85\% - 100\% \)[/tex] of the MHR.

3. High Intensity Activity Definition:
- High Intensity physical activities significantly increase the heart rate and usually fall within the [tex]\( 70\% - 85\% \)[/tex] range of the MHR.
- This intensity is sufficient to improve cardiovascular and respiratory fitness.

Based on these definitions and understanding, option C. [tex]\( 70\% - 85\% \)[/tex] is the correct range showing the impact of high-intensity physical activity on heart rate.

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