Time to retract or correct this paper.
Unfortunately much of the messaging centers around a flawed paper.
Controls are supposed to be people who don't have known cardiac problems.
Now occasionally a normal person can have a mild pericardial effusion, but it is not textbook normal.
We believe this indicates inflammation of the pericardium.
I suppose this is possible, but seems like quite a lot for normal people to me.
To me there are more substantial and important things in the world.
At least until they are fixed/corrected.
This is a nice review article of the types of abnormalities previously described in athletes.
onlinelibrary.wiley.com/doi/full/10.10…
journals.lww.com/acsm-msse/Full…