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hvs, yes i was wondering if you have redone your vo2 max too? should be more than 28 last time you had I supposed, Im still amazed such a quick improvment, great!!!
Hi hvs,
This is all really encouraging!
Was your VO2 max measured just once? Do you remember what it was?
Or did you do the two-day exercise test and have it measured twice? If so, was it lower the second day? Did doing the test cause a setback?
Um, if memory serves my VO2 max was 15 before starting Vistide. (This is one reason why GET is a joke: I was for all intents and purposes an amoeba--I could barely burn oxygen.) And I hadn't been sick very long and tried to work as long as I could before going on medical leave from my job; i.e., deconditioning was not a significant factor. Also, I finished the test, so we got a good result.
We did not do a two-day test like the Pacific lab. That would've been fascinating.
I see Dr. P again very soon and will volunteer to do the test. I'll report if I do it.
Thanks, hvs. 15? Are you sure you were alive at that point? I think Mary Schweitzer said hers was 17 after she had been off Ampligen for a while.
Is this a typical Vo2 max test at the cardiology unit o your local hospital???
Thanks
They literally measure the volume oxygen going and out of your mouth. It's a very fancy test with gas sensors and computers and a tester very intensively measuring all kinds of things...But it's also absolutely devastating to the Wessely types--you cannot trick the computer or tester. And your brain can't lower your VO2 max, so somatization crap is thrown out the window.
If doctors in the US and UK could all just order one of these puppies for suspected CFS patients a lot of psychiatrists would be out of jobs.
HVS, I love it. I'm so glad you are feeling better and that your VO2 max has improved so much. Y'know, Cort has asked for success stories for the home page of this website. I hope you will submit at least a couple of paragraphs, because this is one of the best success stories I've heard.
I hope you don't mind my asking--have you been tested for XMRV?
Same for me hvs...all cardiac tests normal, yet a VO2 max showing the equivalent of heart failure. Not only did my VO2 Max and Immune panel improve after Vistide Tx, but I also had hormone improvements. These results show CNS viral infection to be the cause of much of my symptoms.
Ya, it should be a pretty much open and shut case as a biomarker since you can pretty easily rule out other explanations for the shockingly low numbers. Your choices are heart failure, toxin poisoning, problems on the cellular level [viral infection included], or lung problems. You rule out long problems on the spot. Your heart needs to get looked at. And then you do the many (and, yes, expensive) blood tests to check out the others.
It's an expensive test, and presumably the second test showing the Pacific Lab results would be twice as expensive.
And you can't cheat it, so the Wessley sh!te is blown out of the water. The operator watches your heart rate increase on the graph and knows when it plateaus at its peak..
LOL, I think Wessely et al have already dismissed it. This UK study claims that V02 scores in CFS are no different than healthy controls, and that "contrary to the belief of many patients, maximal exercise testing to the point of subjective exhaustion proved to be harmless, with no subjects suffering any lasting deterioration in their condition after assessment." Ugh.
this is great.
i couldnt find many other accounts of vistide on the internet though. so ross has been taking it, but unfortunately it didnt work?
I thought the VO2 Max test was highly capable of differentiating deconditioning from pathology?
V02 max is the maximum capacity of an individual's body to transport and utilize oxygen during incremental exercise, which reflects the physical fitness of the individual.
Cancer patients become so deconditioned that they are similar to the frail elderly population in maximal aerobic capacity, or VO2 max (approximately 20 mL kg1 min 1). Patients with lung cancer or with severe fatigue accompanying their cancer have been noted to have extremely low levels of VO2 max.
The significantly reduced VO2 max leads to a high oxygen cost in performing activities of daily living, maintaining ambulation, and tackling vocational/avocational tasks. The oxygen cost surpasses that persons anaerobic threshold, which is the level of oxygen consumption at which lactic acid production by muscle exceeds consumption.
Cancer patients have a VO2 max of 16 to 25 mL/min and aerobic thresholds of about 7 to 9 mL/min. Activities of daily living and walking, in normal subjects, demand an oxygen consumption cost of about 6 to 16 mL/min. This means that daily functional demands can place cancer patients at or near their aerobic threshold, leading to fatigue, she explained.
With the Pacific Fatigue Lab doing a new exercise testing regime, two exercise tests two days in a row and other tests (now known as the Stevens Protocol) theyve given the post-exertional problems ME/CFS patients have reported for so many years a chance to show up and they have.
Their results are both profound and disturbing. About half of the ME/CFS patients theyve tested do, in fact, fail or significantly under perform in the first single exercise test they cannot generate normal amounts of energy even when theyre rested. Its the rest of the patients that are so intriguing, though. When you give these patients a second test a day later many of them will fail as well--and fail spectacularly.
The amount of impairment the Lab sees can be astonishing - some patients suffer as much as a 50% drop in their ability to produce energy the next day. Ms. Stevens spoke of a twenty-something man whose next day exercise tests were worse that those of a normal 85 year old. In a hospital setting his cardiopulmonary exercise profile would suggest he had heart failure.
As hvs noted above, there are different reasons why v02 can be low -- viral infection, heart failure, lung issues like asthma. A normal, healthy adult, or even a sedentary adult should not have super low scores. To get that low you have to be extremely deconditioned. So when you see low v02 in someone young and otherwise healthy, it might be a good indicator, along with clinical presentation and other labwork, of CFS. AND, hvs's score improved after anti-viral treatment so it objectively supports a patient's report of improving.
Thanks Robin.
That's strange about the VO2 Max test....if it cannot somewhat accurately diagnose the difference between deconditioning and pathology, what good is it? Maybe Dr Peterson had some additional testing going on that helped to quantify the difference because I thought he had mentioned having the ability to attribute fairly accurate percentages to each.