Part I: Record heart rate as Heart Beats Per Minute A. Take pulse for 10 seconds and multiply by 6.
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B. Walk fast for 440 yards.

C. Take pulse for 10 seconds and multiply by 6.

D. Do 3 to 5 minutes of stretching exercises.

E. Take pulse for 10 seconds and multiply by 6.

F. Jog slowly for 440 yards.

G. Take pulse for 10 seconds and multiply by 6.

H. Do 3 to 5 minutes of stretching exercises.

I. Take pulse for 10 seconds and multiply by 6.

J. Run for 440 yards.

K. Take pulse for 10 seconds and multiply by 6.

L. Do 3 to 5 minutes of stretching exercises.

M. Record heart rate 5 minutes after running the 440.