Originally Posted by
Machka
I don't think he's talking about the Paris Roubaix.
Probably not, but he didn't say the type of event or how strenuous it would be for him or what the temperature would be. A 6 hr event can be extremely strenuous and demanding. Most would consider a marathon to be quite demanding and they can be run in under 3 hrs and it's not that uncommon for a significant fraction of participants to wind up either with hyponatremia or dehydrated. However,
AFAIK, prior salt loading is not a recognized or recommended no matter how long or strenuous an activity.