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Roller Coasters Could Help People Pass Kidney Stones, Says Study (nbcnews.com)

An anonymous reader quotes a report from NBC News: Two researchers who took science to the amusement park say they've found that a thrilling roller coaster ride just might help people shake out pesky kidney stones. Dr. David Wartinger of Michigan State University said he'd heard patient after patient tell him about how they had passed kidney stones after riding one particular ride: the Big Thunder Mountain Railroad roller coaster at Walt Disney World in Orlando. He and a colleague, Dr. Marc Mitchell, had also seen some media reports about people who passed kidney stones while bungee jumping and riding roller coasters. So they decided to leave East Lansing to head to Orlando in the name of medical research. To simulate the human body as best they could, they made an artificial human kidney model out of clear silicone gel and loaded it up with real human kidney stones. They rode the roller coaster holding their kidney contraption between them in a backpack positioned at kidney height. They took 20 rides and noted what happened to each kidney stone. Riding in the back of the roller coaster train seemed to really knock the kidney stones out, they reported in The Journal of the American Osteopathic Association. "Front seating on the roller coaster resulted in a passage rate of four of 24," they wrote. "Rear seating on the roller coaster resulted in a passage rate of 23 of 36." They mainly tested the one roller coaster ride, and it's a fairly simple one. "The Big Thunder Mountain roller coaster is not a terribly dynamic ride," Wartinger said. "It's not very fast. It is not very tall. It makes sharp left and right turns that have some vibration." Wartinger suspects many different thrill rides would have the same effect. "It's not like there anything unique about this one coaster," he said. The pair have now run their test 200 more times and say the findings are consistent. Now they want to try other amusement park rides.

19 of 126 comments (clear)

  1. Fess up, now by Tablizer · · Score: 2

    You got this from Flintstones, 3-Stooges, and/or Onion.com

  2. In other words by Anonymous Coward · · Score: 3, Funny

    Science confirms the theory of thrill rides scaring the piss out of you

    1. Re:In other words by Tablizer · · Score: 5, Funny

      I've had a kidney stone, and I'll tell you the LAST thing I wanted to do during all that pain was hop on a roller coaster. I didn't want to move, period, even after bigass pain meds.

      It was the most painful thing I ever felt. I invented several new vowels and cuss-words, some Klingon, and repented to every deity I could think of. (Its effects vary per person and per stone, though.)

    2. Re:In other words by Opportunist · · Score: 4, Informative

      Being in the club myself, I guess the idea is to go on a roller coaster ride BEFORE it clogs something and hence starts to hurt.

      And for those that don't know the wonderful feelings of kidney stones that wedged themselves into some tender parts of yours, we're not talking about huge boulders. Something the size of a grain of salt can well become your personal nightmare.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  3. How do we get the university to pay for our trips? by ravenshrike · · Score: 5, Funny

    "Well, the only thing at amusement parks that causes many rapid shifts in the human body are roller coasters. Now we need a reason to ride them."

    "I know, we'll make up some bullshit about kidney stones."

      - 1 day of roller coaster rides later

    "Holy shit, it actually had an effect. Now we have an excuse to come back here for the next 3 weekends."

  4. Roller coaster once? Sports always! by hcs_$reboot · · Score: 2

    Just do sports. Exercise regularly.

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    1. Re:Roller coaster once? Sports always! by internerdj · · Score: 2

      I had my first kidney stone after doing a regularly biweekly several hours Judo session in college. It certainly worked to knock one of them loose, but I'm not sold on exercise as a preventative measure.

  5. Centrifuge therapy? by Okian+Warrior · · Score: 2

    I suppose this will spur research into centrifuge therapy to help patients pass kidney stones.

    In about 25 or 30 years the technology will be well-studied enough that we'll see the first installation in a major hospital, and maybe 10 years after that the insurance companies will cover the treatment costs.

    Just like how MRI machines were developed.

    (In the mean time, doctors will advise kidney stone patients to stay off of roller coasters, because there's no evidence that the therapy is safe or effective.)

    1. Re:Centrifuge therapy? by denzacar · · Score: 2

      because there's no evidence that the therapy is safe or effective

      It's clearly effective. They got the idea from bungee jumpers whose kidney stones "shook out" after jumping.
      Trouble is, in humans, unlike with their silicone simulator, it's the passing the stone that hurts. A lot.

      Meaning that they will have to warn both kidney patients and amusement parks about it.
      Or they can just ignore it and we can all just sit back and wait for youtube videos of Mickey and Pluto trying to give CPR to someone lying on the ground howling in pain while pissing themselves.
      You know... entertainment.

      Next up: signs saying "You can't take this ride if your kidney stone is THIS big."

      --
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  6. Now six flags can change $600 a day and get it by Joe_Dragon · · Score: 2

    Now six flags can change $600 a day and get it from your healthcare plan. medicare rate $40.

  7. Re:Uhh Huh.. Right... by rally2xs · · Score: 2, Informative

    Orlando? Best coasters on the planet are in Ohio: Cedar Point (Mellenium Force) and Kings Island (Beast.)

  8. A question re: physics by Harold+Halloway · · Score: 2

    From TFA:

    "Riding in the back of the roller coaster train seemed to really knock the kidney stones out..."

    Why would this be? What forces apply at the back of the train that don't apply at the front or the middle?

    1. Re:A question re: physics by Opportunist · · Score: 3, Insightful

      G-forces are higher in the back of the train, at least for the downhill parts. While the front goes over apex points at a slow speed, the train is already picking up speed downhill when you arrive at this point with the back of the train. Of course the train, in total, goes at the same speed, but what matters is what point you're sitting at when it has a certain speed.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  9. Re:How do we get the university to pay for our tri by reboot246 · · Score: 2

    Another thing that causes many rapid shifts in the human body is sex, if you're doing it right. These researchers must truly be geeks not to have thought of that.

    Roller coasters? Pfffft! Give me sex any day; if you fall off, you don't have as far to fall.

  10. Re: I would try it. by humptheElephant · · Score: 2

    Yes, my poor wife had several and she had lots of pain, but unfortunately she is in fear of heights or anything like a roller coaster. She would have to be sedated to get on the thing. She drank lots of club soda and took calcium tablets. Needless to say, she has removed these from her diet.

  11. Re:Ultrasound? by Gilgaron · · Score: 2

    I had abdominal pain and vomiting, went in for an ultrasound which found nothing, and ended up in the ER the next day with a "massive" kidney stone found via contrast X-ray. Several mm, I forget the exact measure. So if the ultrasound broke anything up looking for them, they must've recrystallized into the big one... in any case, laser lithotripsy was used to demolish my stone. As far as the OP's stories of excruciating pain, I can say that for my type of stone I only had to drink a glass of orange juice or grapefruit juice a day to keep my citrate up. If the doctor had told me I needed to eat a battery every day I would've done it...

  12. stents and lithotripsy by HBI · · Score: 2

    Mine was a 8x7mm stone, not huge but large enough to block the ureter. The pain was excruciating. It's like nothing else - i've had women who went through multiple labors grade the kidney stone as worse. Dilaudid touched it nicely during the 4 days in the hospital, but I required dosing every few hours and I wouldn't have been able to do anything but sleep on that. When they tried percocet, it was taking 20mg every 4 hours and that wasn't touching it. I would arch my back above a bed because resting on the surface hurt.

    Since the pain is caused by the blocked ureter, the solution for me was a urinary stent shoved up my urethra and then manipulated into the ureter. It keeps the urine flowing and instantly relieves the pain. But, you have a stick inside you, and you know it every time you urinate (or move). More uncomfortable than anything else. Also, if you have never pissed blood, it's very unsettling - every time they would mess with the stent or do a lithotripsy i'd piss blood for a day or two.

    I required four lithotripsies (going under each time...my memory was for shit that summer) before the stone finally broke up and passed.

    Do not recommend kidney stones.

    --
    HBI's Law: Frequency of calling others Nazis is directly correlated with the likelihood of the accuser being Communist.
  13. Vitamin D by HBI · · Score: 2

    Over supplementation of Vitamin D (particularly D2) is known to cause oxalate stones. I have a metabolic disorder characterized by low D levels, and my endocrinologist had me supplement heavily. The end result was that I was taking powdered kidney stone pills, essentially.

    Just FYI

    --
    HBI's Law: Frequency of calling others Nazis is directly correlated with the likelihood of the accuser being Communist.
  14. Re:Mountain biking... by PPH · · Score: 2

    So do you think its the G-forces or the vibration? Once the cause has been identified, it wouldn't be too much trouble to simulate it. A small centrifuge or, even easier, a chair with a vibrator.

    I wonder if my wife can get a prescription for a Sybian.

    --
    Have gnu, will travel.