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I am a cardiologist and just to correct the teacher, the actual maximum predicted heart rate for a person is (MPHR) 220-age. so the number is 220 not 200. After that you can take whatever percentage you need. 85% is the maximum you need to achieve for the purpose of an exercise strees test, to check for ischemia. Cardio workouts aim at between 60 to 70 % (aprox)
r = 0.6(200 – a), where r = exercise heart rate and a = age of individual
For a 22-year-old, r = 0.6(200 – 22) = 0.6*178 = 106.8
I had always been told that maximum heart rate is 220 – a. That makes more sense, as a heart rate of 106.8 doesn’t seem like an aerobic heart rate. But for the data you provided, it is correct.
September 30th, 2008 at 6:25 pm
julbern
sounds easy enough…….just do it
October 4th, 2008 at 3:03 am
nifr
A) (200 – A) x 60% = E
B) (200 – 22) x 60% = (178) * 60% = 106.8 so E = 106.8
October 6th, 2008 at 6:17 am
mcnary
A) E = .6 (200 – A)
B) E= .6 (200 – A)
.6 (200 – 22)
.6 (178)
E = 106.8 bpm
October 8th, 2008 at 3:15 pm
ricagl
Part A is a straightforward translation of the text into a formula:
E = 60% of (200 – A) = 0.6 x (200 – A)
If you want you can simplify this by expanding,
E = 120 – 0.6 A
For part B, substitute A = 22:
E = 120 – 0.6 x 22 = 120 – 13.2 = 106.8
October 11th, 2008 at 3:39 am
terrmart
A.) z=heart rate, y=age
z=200-y x 60%
B.)106.8
October 12th, 2008 at 10:09 pm
phobent
e = (200-age)*.6
e = (200-22) *.6
e = 106
October 15th, 2008 at 5:26 am
fanho
A) E=(200-A) * .60
B) E=(200-22) * .60
E=178 * .60
E=106.8
October 16th, 2008 at 5:27 pm
kestan
The equation
Exercise heart rate = (Heart rate minus age) times 60%
E = (200 – 22) x 60%
- – - – - – - – - – - – - – - – - – - – - – - – - – - – — – - – - – - – -
Exercise rate using the Formula
first convert 60% to decimal
60% = 60/100 = 0.6
Percent to decimal: divide 60/100 equals 0.6
E = (200-22)(0,6)
subtract 200-22 = 178 in the formula
E = (178)(0,6)
E = 106.8
The exercise heart rate is 106.8 beats
the answer is 106.8
October 18th, 2008 at 1:20 pm
cathjust
I am a cardiologist and just to correct the teacher, the actual maximum predicted heart rate for a person is (MPHR) 220-age. so the number is 220 not 200. After that you can take whatever percentage you need. 85% is the maximum you need to achieve for the purpose of an exercise strees test, to check for ischemia. Cardio workouts aim at between 60 to 70 % (aprox)
October 21st, 2008 at 10:18 pm
gasm
A)
200 – age = 200 – A
Exercise rate is 60% of (200 – A)
E = .6(200 – A)
B)
E = .6(200 – 22) = .6(178) = 106.8 [beats/minute]
October 23rd, 2008 at 12:45 pm
ethel
A) E=(200-A) x .60
B) E=(200-22) x .60
E=178 x .60
E=106.8
October 25th, 2008 at 12:11 am
olivia
r = 0.6(200 – a), where r = exercise heart rate and a = age of individual
For a 22-year-old, r = 0.6(200 – 22) = 0.6*178 = 106.8
I had always been told that maximum heart rate is 220 – a. That makes more sense, as a heart rate of 106.8 doesn’t seem like an aerobic heart rate. But for the data you provided, it is correct.