Worrying heart rate

Borrow somebody elses monitor, and try it, plus wear yours in the house. Get a doc check up it won't hurt, see my thread, "Have I done the right thing."

I know two people who suffer from tachiocardia where their heartbeat races to about 240 - you'd likely notice if your heart was going this high! interference is your likely cause, but see a doctor if it persists

I have had a similar problem and noticed that my performance also dropped a bit. Discovered from this that I am suffering bouts of SVT (Supra Ventricular Tachycardia) have had to give up coffee! Particularly before exercise. Other than this it does not cause me any problems. You need to find out whether it is interference or cardiac; there are techniques that will stop this arythmia. A visit to a Dr would be advisable.

I had 'spikes' in my heart beat records these stopped when I ceased keeping my mobile in my chest pocket of my cycling jersey.

Yeah I think you would feel some difference if your heart was going at 240 bpm - that's cardiac incident territory.

I get this on my Garmin Edge 500 in winter when you don't start to sweat so quickly (and yes we DO have winter in Abu Dhabi - it gets down to 14 C I'll have you know. Armwarmers and shoe cover time ).

I have two little tricks that seem to overcome it - put a bit of spit on the back of the plastic HR band.

But the best one is that I wear disposable contact lenses and once I've put them in I rub a bit of the saline solution from the pack onto my skin underneath the contact points. Seems to have solved the problem.

Double check it by counting your pulse for 15 seconds and multiplying by four.

go for a heart rate specific monitor, polar perhaps, but beware the test at rest function, I'm seventy three and it tells me I'm an elite athlete, just wish I could climb like one.

Sounds like interference.

Very roughly, a normal max HR is 220 - age, so for you that'd be 190.

To get above that, you'd need to be in an abnormal rhythm - which you'd notice!

The other possibility would be ectopic beats, which are normal! But these are more common at lower HRs, I think. May just be how the garmin responds to it.

It's almost certainly interference, I'd have thought - that's why I still use wired cycle computers.

(Does anyone know of a wired heart monitor? Apart from those we use in hospitals, I mean?).

does it happen at the same physical locations each time? if so it's probably some kind of interference.

Have you got the little rubber grommet thing pushed into the USB port?

Mine wasnt last night and the HR was reading 70ish PM too high. Pushed it in and was fine, a bit bizarre.