Unusual question. Using a 955 with Polar H10 chest strap. When running on a treadmill, whenever I burp, my Heart Rate drops by 10-12 bearts and then goes back to prior level. Usually a 30 second experience. Weird? Any thoughts?
Unusual question. Using a 955 with Polar H10 chest strap. When running on a treadmill, whenever I burp, my Heart Rate drops by 10-12 bearts and then goes back to prior level. Usually a 30 second experience. Weird? Any thoughts?
I think it's normal. I've experienced this for years with several Garmin watches and chest straps whether on a treadmill or outdoors.
I see the same thing, wrote about it somewhere on the forum. Still don't know whether this is a HR strap artifact, or a real thing. But the data is very real.
As far as I tell, it's a chest strap issue. Graphing both HRs (in Intervals.icu) shows the chest rate drops but the wrist doesn't. I suppose the wrist rate might have some cleaning done to it.
Classic
Andrew Coggan in another (Slowtwitch) forum:
"Yes, it happens to me (and probably almost everyone else).
Eructation (burping) is under control of the parasympathetic nervous system. Thus, when signals are sent to the muscles controlling this action, there is some "spillover" to the vagus nerve, which provides parasympathetic control of the heart. The result, as you've observed, is that your heart rate (and blood pressure) tend to fall when you burp, even when you're exercising. (The same also happens during micturition, i.e., when you urinate...which explains why you might feel a bit light headed and sway a little when using a urinal.)"