I bought my SleepU sensor because I want to track my O2 during air travel. After purchase I wore it to see what the data looks like, how to download it, etc. Right away I started seeing these transient sudden drops in O2 and HR. And that brought up my question wondering if drops in HR are related to sudden episodes of unexplained fatigue.
I'm trying to understand what artifact means. I know some of my readings are from a loose sensor as I do adjust it on my body, change placement, etc. The following screen grab describes some artifacts. I have one event I caught on my SleepU monitor where I was falling asleep while actively talking with friends in the middle of the afternoon, my O2 and HR drop and the 'clinically' validated Zio Patch reading from that time is labeled artifact.
Electrocardiography Pitfalls and Artifacts: The 10 Commandments
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Table 1
Most frequent causes of electrocardiographic artifact and other pitfalls