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- 1). Place your index and middle fingers onto the palm side of the wrist on the opposite hand under the thumb. Press until you can feel your heartbeat.
- 2). Use a waterproof watch and count your heartbeat for 20 seconds. Times this number by 3 to see how many beats per minute. This is your resting pulse.
- 3). Swim the desired amount of laps for your workout. Stop, take a few breaths and repeat steps 1 and 2. This is your pulse after exercise.
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