Originally Posted by
GhostRider62
I don't think OP indicated the nature of the medical condition, I assumed he has had medical clearance and assumed it was not cardiac related.
I have always had some timing issues with the ticker giving me sleep issues. I had some issues leading into PBP and ended up seeing 4 different Cardiologists (One surgeon, one EP, Two sports specialist Cardiologists) with all the tests, some twice. They all said I should do my long distance riding and were 100% supportive. If OP has not been cleared and checked for whatever ails, he/she should do so for sure.
I (and @
samkl too, most likely) was reacting to the part I bolded below.
It seems to me that it's important that the doctor in question has some experience with endurance athletes and really understands what both the prior training and the event itself will entail. Some heart problems can be caused by too much cycling intensity for too long over too many years, but who knows if that applies to the OP.
All I know is that a hard 300K feels more stressful than getting a lousy/short nights sleep.
Originally Posted by
Morimorimori
Hi.
As the next PBP is just a year ahead (2023), I was thinking about trying my first ultra-marathon using this opportunity. One thing still may become a blocker. If I'll decide to try it, I'll have to have a mandatory all-night sleep at least about 8h long (I have some health conditions I need to be wary about, and riding 1200km in 90h is stressful for my heart enough, on its own; riding without proper sleep may end up badly, in such case).