There is much discussion on exercise and it's effect on AF, or vice versa.
I have found that a game of squash ( similar to raqcket ball in the USA) is more likely to put me into AF than something like mountain biking. I think it has something to do with the intensity of the sport or the speed (sprint and stop of squash).
My heart rate also shows that with squash I can go to 195bpm within a minute or two, while with MTB (mountain bike) it takes longer and also does not reach even the 180bpm mark.
My cardiologist did show me a sort of a chart that gave guidelines about what sports are more suitable for AF, compared with others, but I cannot remember where he got it.
Do any of you know about a guideline like that?