2018 Rd 15: Post Game Pain: Carlton vs Brisbane

[Lods]

Arrhythmias are not uncommon is low body fat athletes.

I can't recall the cause, but it's something to do with a lack of energy reserves that can cause a particular deficit in a required chemical during heavy exercise. If that is the cause it's not something the health of fitness staff can do anything about in advance, but it can be managed once it's known about.

I have Atrial Fibrillation
I actually feel more uncomfortable when my heart is in normal rhythm.
But even with medication it does have a considerable effect on exercise tolerance.
...however Marchbank is relatively young so hopefully it can be managed if indeed it does prove to be an ongoing issue.
It may just be virus related...and a short term problem.