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Runner’s Diarrhea: A Summertime Favorite?

A blogger friend of mine referred me to an article about a female runner struggling with gastrointestinal distress. She asked for advice regarding how to prevent the “runner’s trots” and felt fairly mystified regarding its cause. Since up to half of runners face this problem at some point (especially women), I thought I’d post some advice that comes from experience… ahem.

The urge to use the restroom during exercise is caused by increased intestinal motility, likely triggered by any (or all) of the following:  jostling of internal organs, relative intestinal ischemia (decreased oxygen getting to the intestines as blood is diverted to the muscles for work and to the skin to cool the body), dehydration, and adrenaline-related anxiety/stress hormones. I’ve noticed that hot weather greatly increases the likelihood of runner’s diarrhea as it contributes to additional blood diversion as well as dehydration through excessive sweating. Basically, don’t be surprised if you need to plan your summer runs around bathroom stops.

That being said, there are a few things that can decrease the urgency and frequency of this unpleasant intestinal drama:

1. Watch what you eat before your run – avoid fiber, caffeine, fake sugar, or anything that generally makes YOU have to move your bowels more frequently (milk and/or soy products are a culprit for some). Ideally, these things should be avoided up to 12-24 hours before you run.

2. Stay hydrated. Get ahead of the game by drinking a liter of water before your run and continue to hydrate during exercise (as appropriate for the climate and your effort level.)

3. Run at a slower pace if the weather is hot. I often find that dropping the pace by a minute or two per mile can magically reduce the intestinal symptoms.  Interval training can help you challenge your speed limits while offering active recovery periods for your body to cool down and let your gut chill out.

4. Run in the morning when it’s cooler and you’ve had less to eat. Running after a day full of eating is looking for trouble.

5. Try to evacuate your bowels before your run – this is fairly obvious, but take the time you need to get this taken care of.

If the weather is hotter than 85 degrees, I’d consider running on a treadmill in an air conditioned space.

I found this comprehensive list of strategies to avoid the trots quite helpful. Please check it out – and good luck on your summer runs and races. Perhaps we’ll cross paths at a rest stop near you!


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One Response to “Runner’s Diarrhea: A Summertime Favorite?”

  1. Carolyn Thomas says:

    “Plan your summer runs around bathroom stops” is the mantra of all the women I’ve ever run with. And not just for running: also true for taking long walks – women know every possible public restroom, from coffee shops to hotels to libraries, within a 10-mile radius of our homes!

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Richmond, VA – In an effort to simplify inpatient medical billing, one area hospitalist group has determined that “altered mental status” (ICD-9 780.97) is the most efficient code for use in any patient work up.

“When you enter a hospital, you’re bound to have some kind of mental status change,” said Dr. Fishbinder, co-partner of Area Hospitalists, PLLC. “Whether it’s confusion about where your room is located in relationship to the visitor’s parking structure, frustration with being woken up every hour or two to check your vital signs, or just plain old fatigue from being sick, you are not thinking as clearly as before you were admitted. And that’s all the justification we need to order anything from drug and toxin screens, to blood cultures, brain MRIs, tagged red blood cell nuclear scans, or cardiac Holter monitoring. There really is no limit to what we can pursue with our tests.”

Common causes of mental status changes in the elderly include medicine-induced cognitive side effects, disorientation due to disruption in daily routines, age-related memory impairment, and urinary tract infections.

“The urinalysis is not a very exciting medical test,” stated Dr. Fishbinder. “It doesn’t matter that it’s cheap, fast, and most likely to provide an explanation for strange behavior in hospitalized patients. It’s really not as elegant as the testing involved in a chronic anemia or metabolic encephalopathy work up. I keep it in my back pocket in case all other tests are negative, including brain MRIs and PET scans.”

Nursing staff at Richmond Medical Hospital report that efforts to inform hospitalists about foul smelling urine have generally fallen on deaf ears. “I have tried to tell the hospitalists about cloudy or bloody urine that I see in patients who are undergoing extensive work ups for mental status changes,” reports nurse Sandy Anderson. “But they insist that ‘all urine smells bad’ and it’s really more of a red herring.”

Another nurse reports that delay in diagnosing urinary tract infections (while patients are scheduled for brain MRIs, nuclear scans, and biopsies) can lead to worsening symptoms which accelerate and expand testing. “Some of my patients are transferred to the ICU during the altered mental status work up,” states nurse Anita Misra. “The doctors seem to be very excited about the additional technology available to them in the intensive care setting. Between the central line placement, arterial blood gasses, and vast array of IV fluid and medication options, urosepsis is really an excellent entré into a whole new level of care.”

“As far as medicine-induced mental status changes are concerned,” added Dr. Fishbinder, “We’ve never seen a single case in the past 10 years. Today’s patients are incredibly resilient and can tolerate mixes of opioids, anti-depressants, anti-histamines, and benzodiazepines without any difficulty. We know this because most patients have been prescribed these cocktails and have been taking them for years.”

Patient family members have expressed gratitude for Dr. Fishbinder’s diagnostic process, and report that they are very pleased that he is doing everything in his power to “get to the bottom” of why their loved one isn’t as sharp as they used to be.

“I thought my mom was acting strange ever since she started taking stronger pain medicine for her arthritis,” says Nelly Hurtong, the daughter of one of Dr. Fishbinder’s inpatients. “But now I see that there are deeper reasons for her ‘altered mental status’ thanks to the brain MRI that showed some mild generalized atrophy.”

Hospital administrators praise Dr. Fishbinder as one of their top physicians. “He will do whatever it takes to figure out the true cause of patients’ cognitive impairments.” Says CEO, Daniel Griffiths. “And not only is that good medicine, it is great for our Press Ganey scores and our bottom line.”

As for the nursing staff, Griffiths offered a less glowing review. “It’s unfortunate that our nurses seem preoccupied with urine testing and medication reconciliation. I think it might be time for us to mandate further training to help them appreciate more of the medical nuances inherent in quality patient care.”

Dr. Fishbinder is in the process of creating a half-day seminar on ‘altered mental status in the inpatient setting,’ offering CME credits to physicians who enroll. Richmond Medical Hospital intends to sponsor Dr. Fishbinder’s course, and franchise it to other hospitals in the state, and ultimately nationally.

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