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Mark Vink
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== Aerobic Threshold / Lactic Acid Study == While bedridden with [[Severe and very severe ME|severe M.E.]], Dr Vink carried out a biomedical study on himself, collecting blood with finger prick lancets and pediatric sized tubes. By measuring [[creatine kinase]], inorganic [[phosphate]] and [[Lactic acidosis|lactic acid]] before and after trivial [[exercise]] (i.e., walking the 5 to 6 yards from his bed to the toilet and back), he showed that his aerobic energy production and [[lactic acid]] excretion were both impeded.<ref name="Vink2015" /> The results of Vink's 2015 study were reported in a Dutch national newspaper as finding that the physical impact of going to the bathroom was similar to that of running a marathon for people with [[chronic fatigue syndrome]],<ref name="volkskrant">{{Cite web|url=https://www.volkskrant.nl/wetenschap/als-je-cvs-hebt-is-naar-de-wc-gaan-al-een-marathon~b4b45b16/ | title = Als je CVS hebt is naar de wc gaan al een marathon | last = de Visser | first = Ellen | authorlink=Ellen de Visser | date = Oct 3, 2017 | website = volkskrant.nl|archive-url=|archive-date=|url-status=|access-date=2018-12-29}}</ref><ref name="marathon" /> although what Vink found was that his own lactic acid levels were ''higher'' than those at which most professional atheletes would have quit.<ref name="Vink2015" />
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