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While several measures exist to assess current maladaptive exercise, there are no validated self\u2010report tools to assess maladaptive exercise history\u2014an important symptom domain among individuals with lifetime EDs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Method<\/jats:title>\n                    <jats:p>\n                      Using data from a large sample of individuals with at least one lifetime ED diagnosis across four countries (\n                      <jats:italic>N<\/jats:italic>\n                      \u00a0=\u00a031,670), the current study aimed to validate and refine the Eating Disorders 100,000 Questionnaire\u2014version 3 exercise items to create a brief measure of lifetime and current maladaptive exercise, suitable for large\u2010scale epidemiological research and clinical screenings.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Five non\u2010redundant operationalisations of maladaptive exercise were identified (\u2018Any Maladaptive Exercise\u2019, \u2018Regular Maladaptive Exercise\u2019, \u2018Compensatory Exercise\u2019, \u2018Excessive Exercise\u2019, \u2018Current Maladaptive Exercise\u2019). Maladaptive exercise history was present across all lifetime ED presentations assessed, though endorsement levels varied based on scoring operationalisation. Individuals reporting a history of anorexia nervosa reported the highest levels of endorsement of most constructs, closely followed by bulimia nervosa. Compensatory exercise was endorsed most frequently among those reporting a history of bulimia nervosa relative to other diagnostic groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Six key items were recommended as a brief screening assessment to capture maladaptive exercise history in EDs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial Registration<\/jats:title>\n                    <jats:p>\n                      EDGI is a registered clinical trial (\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"http:\/\/clinicaltrials.gov\">clinicaltrials.gov<\/jats:ext-link>\n                      ID: NCT04378101)\n                    <\/jats:p>\n                  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