doctors use the term maximum heart rate (MHR) when referring to the quantity found by starting with 220 beats per minute and subtracting 1 beat per minute for each year of a persons age. Doctors recommend excericsing 3 or 4 times each week for atleast 20 minutes with your heart rate increased from its resting heart rate (RHR) to its training heart rate (THR) where
THR=RHR+.65(MHR-RHR)
which of the following is closest to the THR of a 43 year old person whos RHR is 54 beats per minute?
A 197
B169
C162
D134
E80
THR=RHR+.65(MHR-RHR)
which of the following is closest to the THR of a 43 year old person whos RHR is 54 beats per minute?
A 197
B169
C162
D134
E80
-
THR=RHR+.65(MHR-RHR)
THR = 54 + .65((220 - 43) - 54)
= 54 + .65 x 123
= 54 + 79.95
= 133.5
Answer 'D' is closest - 134 beats.
THR = 54 + .65((220 - 43) - 54)
= 54 + .65 x 123
= 54 + 79.95
= 133.5
Answer 'D' is closest - 134 beats.