MattusMaximus
Intellectual Gladiator
- Joined
- Jan 26, 2006
- Messages
- 15,948
Well, this thread's gone right in the crapper 
A simple saline enema works by loosening everything up as well as creating , obviously, more bulk in the lower colon. One function of the bowel is to reabsorb water from the contents of the bowel and this a saline enema is unlikely to cause dehydration. If anything it will work to slightly rehydrate you.
Warming it up is both more comfortable and will aid in stimulating the bowl.
Well, as I implied in the eccentricities thread, I usually do so with a couple of coffees and a fag. This may not be practical in your case.
That's not how enemas work.
They create a slightly hypertonic milieu in the colon which can actually draw water out of the luminal lining which helps to "flush" you out. They can be problematic as they are slightly dehydrating.
The polyethylene glycol oral solutions (e.g., "GoLytely") are meant to do a similar thing without creating such an osmotic gradient. The problem is that they are terrible. Many gastroenterologists don't prescribe these anymore for prepping for colonoscopies because they are so awful for patients to take. They simple prescribe laxatives.
Light meals for the preceding two days, a gentle oral laxative the evening before, and plenty of hydration should do the trick. Of course, if you have a mechanical obstruction problem somewhere in your alimentary canal or otherwise can't tolerate this regimen, don't do it. And, I'd certainly give it a "dry run" before you enter a race... pun intended.
~Dr. Imago
I know someone who trained her dogs to defecate on command, prior to entering the show ring, to avoid 'incidents'. I'll drop her an email.
I race a lot and I've never had this problem during a race. I wake up, drink a big glass of water, and walk briskly around the block. Get home, immediately "take care of business" and head off to the race. This works every time for me. No special need to change my schedule or meals or whatever. It's the combo of the water and the walking that stimulates it for me.
Thanks for the suggestions guys. Ran a marathon today that started early in the morning and it was spectacular. I did my business first thing in the morning, thanks to eating a lot of prunes early yesterday morning, a little help from magnesium citrate, and ab exercises. No problems, no issues, I had completely forgotten about my digestive system during the run. I managed to finish my first marathon in under 4 hours which I wasn't expecting.