As you exercise, it is to your advantage to keep track of your pulse rate. You can pick up an inexpensive pulse measure at any local Wal-mart, KMart, or sporting good store. This will measure your heart rate to ensure you are staying within a healthy range. The rate is measured by counting the beats of your heart in a set amount of time, usually about 15 to 20 seconds, and then multiplying the number of beats to get your number of beats per minute. For example, if your pulse at 20 seconds were 40, since there are 60 seconds in a minute, you would take 40 times three for a total rate per minute of 120.
Source [ http://www.healthtweak.com ]
Source [ http://www.healthtweak.com ]
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