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Commonly, TFA derived estimates are assessed using band averages within the very-low (0.02\u20130.07\u2009Hz) and low (0.07\u20130.20\u2009Hz) frequency during spontaneous oscillations but are quantified at frequencies of interest where blood pressure oscillations are driven (e.g., 0.05 and\/or 0.10\u2009Hz). Driven estimates more closely resemble the autoregulatory challenges individuals experience on a daily basis, while also eliciting higher levels of reliability. While driven estimates with point-estimates are not feasible for all clinical populations, these approaches increase the ability to understand pathophysiological changes.<\/jats:p>","DOI":"10.1177\/0271678x231224504","type":"journal-article","created":{"date-parts":[[2024,3,11]],"date-time":"2024-03-11T15:39:23Z","timestamp":1710171563000},"page":"1053-1056","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Letter to the editor: Deriving transfer function analysis metrics from driven methods"],"prefix":"10.1177","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9756-5793","authenticated-orcid":false,"given":"Joel S","family":"Burma","sequence":"first","affiliation":[{"name":"University of Calgary"},{"name":"University of Calgary"},{"name":"University of Calgary"},{"name":"Libin Cardiovascular Institute of Alberta, University of Calgary, Alberta, Canada"},{"name":"Alberta Children\u2019s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada"},{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada"},{"name":"Integrated Concussion Research Program, University of Calgary, Calgary, AB, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1054-0038","authenticated-orcid":false,"given":"Jonathan D","family":"Smirl","sequence":"additional","affiliation":[{"name":"University of Calgary"},{"name":"University of Calgary"},{"name":"University of Calgary"},{"name":"Libin Cardiovascular Institute of Alberta, University of Calgary, Alberta, Canada"},{"name":"Alberta Children\u2019s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada"},{"name":"Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada"},{"name":"Integrated Concussion Research Program, University of Calgary, Calgary, AB, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,3,11]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/0271678X221119760"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1152\/ajpheart.1998.274.1.H233"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.90822.2008"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1152\/japplphysiol.00264.2015"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.14814\/phy2.14458"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1088\/1361-6579\/ace3a2"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1177\/0271678X221104868"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10286-023-00986-2"},{"key":"e_1_3_2_10_2","article-title":"Observations on the structure and functions of the nervous system","author":"Monro A.","year":"1783","unstructured":"Monro A. 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