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HEART RATE:
The pulse rate, or the heartbeat, can be sensed and
counted by touching some areas such as the wrist,
neck or the top of the foot where the artery passes
closest to the skin. The pulse rate is counted by
placing the index finger over and middle finger
under the wrist, and by pressing firmly until the
pulse is sensed.
The acceleration and deceleration of blood and
vibration of the heart cause the sound of heartbeat.
The adult average heartbeat is 72 times per
minute. The normal heart rate while resting is
as follows:
|
Type of
People |
Beats Per Minute |
|
Infants |
100 to 160 beats per minute |
|
Children (1 to 10 years) |
70 to 120 beats per minute |
|
Children (over 10 years) |
60 to 100 beats per minute |
|
Adults of all ages |
60 to 100 beats per minute |
|
Trained Athletes |
40 to 60 beats per minute |
If the pulse rate is not within the normal range as
indicated above, something is wrong, and the person
should stop exercising and should consult a
healthcare professional.
The maximum heart rate and target heart rate can be
calculated:
Maximum Heart Rate = 220 bpm (beats per minute) –
Age
Target Heart Rate = 60 to 70% of Maximum Heart Rate
Example 6.4 (Book:
Permanent Diabetes Control,
page 82)
A 50-year-old person is weighing 70 Kg or 156 lb.
Maximum Heart Rate = 220 – 50 = 170 bpm
70% of Maximum Heart Rate = 0.70 x 170 = 119 bpm
60% of Maximum Heart Rate = 0.60 x 170 = 102 bpm
His target heart rate should be between 102 bpm and
119 bpm,
which is safe for this person at any level of
intensity of a particular activity.
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