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Six-minute walk test
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{{stub}} The '''Six-minute Walk Test''' or '''6MWT''' is a medical test used to measure how far a person can walk in 6 minutes, and is considered a measure of exercise capacity.<ref name="PMC760996">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7609960/</ref> It was one of two key objective measures used in the controversial [[PACE trial]] that was withheld in the original publication, with patient questionnaire results published instead to support the initial claims that [[graded exercise therapy]] and [[cognitive behavioral therapy]] were effective treatments for ME/CFS.<ref name="pace2011a">{{citation | last1 = White | first1 = PD | authorlink1 = Peter White | last2 = Goldsmith | first2 = KA | authorlink2 = Kimberley Goldsmith | last3 = Johnson | first3 = AL | authorlink3 = Anthony Johnson | last4 = Potts | first4 = L | authorlink4 = Laura Potts | last5 = Walwyn | first5 = R | authorlink5 = Rebecca Walwyn | last6 = DeCesare | first6 = JC | authorlink6 = Julia DeCesare | last7 = Baber | first7 = HL | authorlink7 = Hannah Baber | last8 = Burgess | first8 = M | authorlink8 = Mary Burgess | last9 = Clark | first9 = LV | authorlink9 = Lucy Clark | last10 = Cox | first10 = DL | authorlink10 = Diane Cox | last11 = Bavinton | first11 = J | authorlink11 = Jessica Bavinton | last12 = Angus | first12 = BJ | authorlink12 = BJ Angus | last13 = Murphy | first13 = G | authorlink13 = Gabrielle Murphy | last14 = Murphy | first14 = M | authorlink14 = Maurice Murphy | last15 = O'Dowd | first15 = H | authorlink15 = Hazel O'Dowd | last16 = Wilks | first16 = D | authorlink16 = David Wilks | last17 = McCrone | first17 = P | authorlink17 = Paul McCrone | last18 = Chalder | first18 = T | authorlink18 = Trudie Chalder | last19 = Sharpe | first19 = M | authorlink19 = Michael Sharpe | last20 = on behalf of the PACE Trial Management Group | authorlink20 = PACE Trial Management Group| display-authors = | title = Comparison of adaptive pacing therapy, cognitive behaviour therapy, graded exercise therapy, and specialist medical care for chronic fatigue syndrome (PACE): a randomised trial| journal = The Lancet | volume = 377 | issue = 9768 | pages = 823β836 | date = March 5, 2011 | pmid = 21334061 | doi = 10.1016/S0140-6736(11)60096-2 | url = http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(11)60096-2/ }}</ref> ==Theory== The Six-Minute Walk Test involves the assessor providing a suitable environment and instructions for the person doing the test, for example a level surface free of obstacles and no observer giving extra encouragement. The [[PACE trial]] authors refused to release the Six-minute Walk Test results, instead they judged recovery from ME/CFS based on the less accurate patient questionnaire responses.<ref name="pace2011a" /> The PACE trial authors and Queen Mary University of London, which held the unreleased data, were taken to a tribunal by a patient, which ordered the release of the data in 2018.<ref name="ICO-2018">{{Cite web |url = https://ico.org.uk/media/action-weve-taken/decision-notices/2018/2259075/fs50721768.pdf | date = May 23, 2018 | title = Freedom of Information Act request}}</ref> Independent analysis then showed no clinically significant improvement in Six-minute walk test results, proving the interventions were not effective.{{citation needed | date = 2021}} ==Evidence== Charts have been developed typical distances walked during the 6MWT by gender and age, which allows a person's result to be compared with a typical expected result. A person's 6 minute walking distance can also be taken before and after a treatment intervention, to assess improvement or lack of improvement.<ref name="PMC760996" /> ==Cost and availability== The Six-minute Walk Test is free to administer and widely available. ==See also== *[[Research bias in ME/CFS]] *[[PACE trial]] ==Learn more== *[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7609960/ Six-Minute Walk Test] ==References== {{reflist}} [[Category:Tests]] [[Category:Medical tests]]
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