I have a buddy who is an MD for various ultramarthons, and I've helped him with a few local 'nonultra' marathons (I'm a paramedic).
None of this is terribly earth-shattering, in my opinion... Regular oral hydration based on thirst, self-evaluation (Borg Scoring [1], etc), avoiding IV fluids (but using hypertonic solutions when necessary), etc... All stuff that has been talked about for quite some time now.
None of this is terribly earth-shattering, in my opinion... Regular oral hydration based on thirst, self-evaluation (Borg Scoring [1], etc), avoiding IV fluids (but using hypertonic solutions when necessary), etc... All stuff that has been talked about for quite some time now.
[1] https://en.wikipedia.org/wiki/Borg_scale