Garmin 010-01769-10 Troubleshooting Manual - Page 5

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Garmin 010-01769-10 Troubleshooting Manual
The watch is properly tight when you can move the watch and the skin underneath moves with
it.
False Heart Rate Detection
Changes in blood volume aren't always caused by changes in heart rate. Your vascular system is
like a balloon, so the movement of your body or flexing of large muscle groups can affect the
level of blood volume in the wrist area and make it more challenging to accurately detect heart
rate among the presence of other signals that have a much larger magnitude and that change
more dynamically.
In the following example, the watch initially detected and locked onto the runner's pulse,
but around 20 minutes in it locked to their running cadence:
Why does this happen?
In some cases, there isn't much blood in the tissue on the back of the wrist. This issue is common
when it is cold outside or early in a workout before your blood really starts pumping.
How can I prevent this from occurring?