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17
For example, if you are 30 years old, your
calculations will be as follows:
220 - 30 = 190
190 x .60 = 114 (low end or 60% of MHR)
190 x .75 = 142 (high end or 75% of MHR)
30 year-old (THR) Target Heart Rate would be 114-142.
See Table below for additional calculations.
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Before beginning your workout, check your normal resting heart
rate. Place your fingers lightly against your neck, or against your
wrist over the main artery. After finding your pulse, count the
number of beats in 10 seconds. Multiply the number of beats by
six to determine your pulse rate per minute. We recommend tak-
ing your heart rate at these times; at rest, after warming up, dur-
ing your workout and two minutes into your cool down, to accu-
rately track your progress as it relates to better fitness.
During your first several months of exercising, the AHA recom-
mends aiming for the lower part of the target heart rate zone-
60%, then gradually progressing up to 75%.
According to the AHA, exercising above 75% of your maximum
heart rate may be too strenuous unless you are in top physical
condition. Exercising below 60% of your maximum will result in
minimal cardiovascular conditioning.
Check your pulse recovery rate – If your pulse is over 100 bpm
five minutes after you stop exercising, or if it’s higher than
normal the morning after exercising, your exertion may have been
too strenuous for your current fitness level. Rest and reduce the
intensity next time.
Fitness Safety The target heart rate chart indicates aver-
age rate zones for different ages. A variety of different factors (including
medication, emotional state, temperature and other conditions) can
affect the target heart rate zone that is best for you. Your physician or
health care professional can help you determine the exercise intensity
that is appropriate for your age and condition.
(MHR) = Maximum Heart Rate
(THR) = Target Heart Rate
220 - age = maximum heart rate (MHR).
MHR x .60 = 60% of your maximum heart rate.
MHR x .75 = 75% of your maximum heart rate.
100%
85%
75%
60%
Serious
athletic
training range
Cardiovascular
conditioning
range
Fat burning
range
20 25 30 35 40 45 50 55 60 65
AGE
200
195
190
185
180
175
170
165
160
155
170
166
162
157
153
149
145
140
136
132
150
146
143
139
135
131
128
124
120
116
120
117
114
111
108
105
102
99
96
93
TARGET HEART RATE ZONE