I'm a keen rower on my Concept 2, looking at improving my marathon distance time, I've done it in 4 hours 2 mins, first attempt.
And half marathon distance in 1 hour 42 mins, both of which I find relatively easy.... HOWEVER, I've had the most horrendous abdominal cramps followed by sickness and diarrhea throughout the night following any longer distance, vigorous Row???
Has anyone else experienced this and can offer any tips to prevent this?
Any advice will be greatly appreciated as I can't wipe myself out every time I do longer distances
